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COMMUNITY ADDON - Double/Multiple Asteroids fixes for SE
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| Mosfet | Date: Tuesday, 03.05.2016, 22:20 | Message # 16 |
 World Builder
Group: Users
Italy
Messages: 754
Status: Offline
| (5143) Heracles, Near Earth Asteroid
Code Barycenter "Heracles/(5143) Heracles"
{
ParentBody "Sol"
Orbit
{
Epoch 2457600.5
SemiMajorAxis 1.833500481
Period 2.482731444
MeanAnomaly 294.9388476797092
ArgOfPericenter 227.705989
Eccentricity 0.772242011
Inclination 9.0355614
AscendingNode 309.56692
PericenterDist 0.417594382
RefPlane "Ecliptic"
}
}
Asteroid "5143 Heracles"
{
ParentBody "Heracles"
Radius 1.8
AbsMagn 13.8
SlopeParam 0.15
Albedo 0.4
RotationPeriod 2.706
Orbit
{
SemiMajorAxis 1.6838143e-8 // 4 km
Period 0.0017681418 // 0.6458 days
MeanAnomaly 0
ArgOfPericenter 0
RefPlane "Equator"
}
}
Asteroid "S 2011 (5143) 1"
{
ParentBody "Heracles"
Radius 0.3
SlopeParam 0.15
Albedo 0.4
Orbit
{
SemiMajorAxis 2.666039412E-08 // 4 km
Period 0.0017681418 // 0.6458 days
MeanAnomaly 0
ArgOfPericenter 180
TidalLocked true
RefPlane "Equator"
}
}
"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
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| Silicon | Date: Wednesday, 04.05.2016, 23:57 | Message # 17 |
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Astronaut
Group: Users
United States
Messages: 51
Status: Offline
| Here is another set of asteroids. This time three near-Earth and a main-belt.
1998 RO1, 2004 BL86, 65803 Didymos, and 762 Pulcova
Code Asteroid "1998 RO1/(66063) 1998 RO1"
{
ParentBody "Sol"
Class "Asteroid"
AsterType "Aten"
Radius 0.4
Mass 6.969E-14
RotationPeriod 2.492
Obliquity 37
EqAscendNode 277
Orbit
{
Epoch 2457400.5
MeanMotion 0.515
SemiMajorAxis 0.990924
Period 0.986427
Eccentricity 0.720129
Inclination 22.68
AscendingNode 351.875
ArgOfPericenter 151.13
MeanAnomaly 109.479
RefPlane "Ecliptic"
}
}
DwarfMoon "1998 RO1 Beta"
{
ParentBody "1998 RO1"
Class "Asteroid"
AsterType "Aten"
Radius 0.19
Mass 5.16E-15
Orbit
{
Epoch 2457400.5
SemiMajorAxis 8.019E-9
Period 0.001659
Inclination 37
AscendingNode 277
RefPlane "Ecliptic"
}
}
Asteroid "2004 BL86/(357439) 2004 BL86"
{
ParentBody "Sol"
Class "Asteroid"
AsterType "Apollo"
Radius 0.1625
RotationPeriod 2.6205
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.5022
Period 1.8412
Eccentricity 0.40307
Inclination 23.744
AscendingNode 126.72
ArgOfPericenter 311.25
MeanAnomaly 354.03
RefPlane "Ecliptic"
}
}
DwarfMoon "S/2015 (357439) 1"
{
ParentBody "2004 BL86"
Class "Asteroid"
AsterType "Apollo"
Radius 0.035
Orbit
{
Epoch 2457400.5
SemiMajorAxis 3.34E-9
Period 0.001643
Eccentricity 0
Inclination 0
RefPlane "Equator"
}
}
Asteroid "Didymos/65803 Didymos"
{
ParentBody "Sol"
Class "Asteroid"
AsterType "Apollo"
Radius 0.4
Mass 8.824E-14
RotationPeriod 2.2593
Obliquity 19
EqAscendNode 157
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.6443
Period 2.108544
Eccentricity 0.38388
Inclination 3.4078
AscendingNode 73.228
ArgOfPericenter 319.232
MeanAnomaly 283.85
RefPlane "Ecliptic"
}
}
DwarfMoon "S/2003 (65803) 1"
{
ParentBody "Didymos"
Class "Asteroid"
AsterType "Apollo"
Radius 0.075
Mass 4.217E-16
Orbit
{
Epoch 2457400.5
SemiMajorAxis 7.888E-9
Period 0.001357
Eccentricity 0.06
Inclination 0
RefPlane "Equator"
}
}
Asteroid "Pulcova/762 Pulcova"
{
ParentBody "Sol"
Class "Asteroid"
Radius 70.86
Mass 2.344E-7
RotationPeriod 5.839
Orbit
{
Epoch 2457400.5
SemiMajorAxis 3.1562
Period 5.6074
Eccentricity 0.10289
Inclination 13.089
AscendingNode 305.76
ArgOfPericenter 189.18
MeanAnomaly 305.76
RefPlane "Ecliptic"
}
}
DwarfMoon "S/2000 (762) 1"
{
ParentBody "Pulcova"
Class "Asteroid"
Radius 8
Mass 3.35E-10
Orbit
{
Epoch 2457400.5
SemiMajorAxis 4.699E-6
Period 0.012151
Eccentricity 0.03
Inclination 0
RefPlane "Equator"
}
}
Added (04.05.2016, 23:57)
---------------------------------------------
Here is some more triple systems. I think this completes all currently known triples.
3749 Balam, 130 Elektra, 216 Kleopatra, and 2577 Litva
Code Asteroid "Balam/3749 Balam"
{
ParentBody "Sol"
Class "Asteroid"
Radius 3.5
Mass 8.54E-11
RotationPeriod 2.80483
Orbit
{
Epoch 2457400.5
SemiMajorAxis 2.2367
Period 3.3452
Eccentricity 0.1093
Inclination 1.9923
AscendingNode 295.74
ArgOfPericenter 173.98
MeanAnomaly 260.39
RefPlane "Ecliptic"
}
}
DwarfMoon "S/2002 (3749) 1"
{
ParentBody "Balam"
Class "Asteroid"
Radius 0.92
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.932E-6
Period 0.167012
Eccentricity 0.9
Inclination 0
RefPlane "Equator"
}
}
DwarfMoon "S/2008 (3749) 1"
{
ParentBody "Balam"
Class "Asteroid"
Radius 0.83
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.337E-7
Period 0.003808
Eccentricity 0
Inclination 0
RefPlane "Equator"
}
}
Asteroid "Elektra/130 Elektra"
{
ParentBody "Sol"
Class "Asteroid"
Radius 99.465
Mass 1.105E-6
RotationPeriod 5.22468
Obliquity 83
EqAscendNode 12
Orbit
{
Epoch 2457400.5
SemiMajorAxis 3.1232
Period 5.5197
Eccentricity 0.20845
Inclination 22.8675
AscendingNode 145.41
ArgOfPericenter 235.64
MeanAnomaly 346.72
RefPlane "Ecliptic"
}
}
DwarfMoon "S/2003 (130) 1"
{
ParentBody "Elektra"
Class "Asteroid"
Radius 3.5
Orbit
{
Epoch 2457400.5
SemiMajorAxis 8.81E-6
Period 0.014396
Eccentricity 0.13
Inclination 3
RefPlane "Equator"
}
}
DwarfMoon "S/2014 (130) 1"
{
ParentBody "Elektra"
Class "Asteroid"
Radius 2.6
Orbit
{
Epoch 2457400.5
SemiMajorAxis 3.075E-6
Period 0.003012
Eccentricity 0
Inclination 0
RefPlane "Equator"
}
}
Asteroid "Kleopatra/216 Kleopatra"
{
ParentBody "Sol"
Class "Asteroid"
Radius 67.5
Mass 7.769E-7
RotationPeriod 5.385277
Obliquity 8
EqAscendNode 72
Orbit
{
Epoch 2457400.5
SemiMajorAxis 2.7968
Period 4.6774
Eccentricity 0.2492
Inclination 13.096
AscendingNode 215.46
ArgOfPericenter 180.31
MeanAnomaly 50.546
RefPlane "Ecliptic"
}
}
DwarfMoon "Alexhelios"
{
ParentBody "Kleopatra"
Class "Asteroid"
Radius 4.45
Orbit
{
Epoch 2457400.5
SemiMajorAxis 4.532E-6
Period 0.006352
Eccentricity 0
Inclination 0
RefPlane "Equator"
}
}
DwarfMoon "Cleoselene"
{
ParentBody "Kleopatra"
Class "Asteroid"
Radius 3.45
Orbit
{
Epoch 2457400.5
SemiMajorAxis 3.035E-6
Period 0.003395
Eccentricity 0
Inclination 0
RefPlane "Equator"
}
}
Asteroid "Litva/2577 Litva"
{
ParentBody "Sol"
Class "Asteroid"
Radius 2
RotationPeriod 2.813
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.9044
Period 2.6282
Eccentricity 0.13794
Inclination 22.908
AscendingNode 182.61
ArgOfPericenter 283.98
MeanAnomaly 26.575
RefPlane "Ecliptic"
}
}
DwarfMoon "S/2009 (2577) 1"
{
ParentBody "Litva"
Class "Asteroid"
Radius 0.7
RotationPeriod 5.6842
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.404E-7
Period 0.004093
Eccentricity 0
Inclination 0
RefPlane "Equator"
}
}
DwarfMoon "S/2012 (2577) 1"
{
ParentBody "Litva"
Class "Asteroid"
Radius 0.6
Orbit
{
Epoch 2457400.5
SemiMajorAxis 2.527E-6
Period 0.585912
Eccentricity 0
Inclination 0
RefPlane "Equator"
}
}
Edited by Silicon - Thursday, 05.05.2016, 02:18 |
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| Mosfet | Date: Friday, 06.05.2016, 23:12 | Message # 18 |
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World Builder
Group: Users
Italy
Messages: 754
Status: Offline
| Asteroid 3749 Balam has a very high eccentricity and I have calculated, or better I tried, plausible barycenters from volume ratios.
"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
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| Mosfet | Date: Saturday, 07.05.2016, 23:15 | Message # 19 |
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World Builder
Group: Users
Italy
Messages: 754
Status: Offline
| (5381) Sekhmet, double NEA
Code Barycenter "Sekhmet/(5381) Sekhmet"
{
ParentBody "Sol"
Orbit
{
Epoch 2457600.5
SemiMajorAxis 0.947461319
Period 0.922253761
MeanAnomaly 232.9560028829811
ArgOfPericenter 37.435861
Eccentricity 0.29623718
Inclination 48.969357
AscendingNode 58.5495966
PericenterDist 0.66678805
RefPlane "Ecliptic"
}
}
Asteroid "5381 Sekhmet"
{
ParentBody "Sekhmet"
AsterType "Aten"
Radius 0.5
AbsMagn 16.5
SlopeParam 0.15
Albedo 0.25
RotationPeriod 2.7
Orbit
{
SemiMajorAxis 2.70637909000897E-10 // 1.54 km
Period 0.0014259032 // 0.5208 days
MeanAnomaly 0
ArgOfPericenter 0
Eccentricity 0
Inclination 0
AscendingNode 0
RefPlane "Equator"
}
}
Asteroid "S2003 (5381) 1"
{
ParentBody "Sekhmet"
AsterType "Aten"
Radius 0.15
RotationPeriod 10
Orbit
{
SemiMajorAxis 1e-8 // 1.54 km
Period 0.0014259032 // 0.5208 days
MeanAnomaly 0
ArgOfPericenter 180
Eccentricity 0
Inclination 0
AscendingNode 0
RefPlane "Equator"
}
}
"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
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| Mosfet | Date: Sunday, 08.05.2016, 23:07 | Message # 20 |
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World Builder
Group: Users
Italy
Messages: 754
Status: Offline
| other double NEAs, should we be worried? (3671) Dionysus and (69230) Hermes
Code Barycenter "Hermes/(69230) Hermes"
{
ParentBody "Sol"
Orbit
{
Epoch 2457600.5
SemiMajorAxis 1.655109415
Period 2.129355952
MeanAnomaly 330.6278831909314
ArgOfPericenter 92.7131629
Eccentricity 0.62413501
Inclination 6.068238
AscendingNode 34.2429732
PericenterDist 0.622097684
RefPlane "Ecliptic"
}
}
Asteroid "69230 Hermes"
{
ParentBody "Hermes"
AsterType "Apollo"
Radius 0.3
AbsMagn 17.5
SlopeParam 0.15
Albedo 0.25
RotationPeriod 13.894
Orbit
{
SemiMajorAxis 3.10027207249686E-09 // 1.1 km
Period 0.0015849757 // 0.5789 days
MeanAnomaly 0
ArgOfPericenter 0
Eccentricity 0
RefPlane "Equator"
}
}
DwarfMoon "S2003 (69230) 1"
{
ParentBody "Hermes"
Class "Asteroid"
AsterType "Apollo"
Radius 0.27
RotationPeriod 13.892
Orbit
{
SemiMajorAxis 4.25277376199843E-09 // 1.1 km
Period 0.0015849757 // 0.5789 days
MeanAnomaly 0
ArgOfPericenter 180
Eccentricity 0
RefPlane "Equator"
}
}
Barycenter "Dionysus/(3671) Dionysus"
{
ParentBody "Sol"
Orbit
{
Epoch 2457600.5
SemiMajorAxis 2.197503781
Period 3.257636697
MeanAnomaly 304.8556796126329
ArgOfPericenter 204.192352
Eccentricity 0.542416439
Inclination 13.5501872
AscendingNode 82.161864
PericenterDist 1.005541605
RefPlane "Ecliptic"
}
}
Asteroid "3671 Dionysus"
{
ParentBody "Dionysus"
AsterType "Amor"
Radius 0.715
AbsMagn 16.4
SlopeParam 0.15
Albedo 0.179
RotationPeriod 2.705
Orbit
{
SemiMajorAxis 1.87988908655175E-10 // 3.4 km
Period 0.0031650232 // 1.156 days
MeanAnomaly 0
ArgOfPericenter 0
Eccentricity 0.07
Inclination 0
AscendingNode 0
RefPlane "Equator"
}
}
DwarfMoon "S1997 (3671) 1"
{
ParentBody "Dionysus"
Class "Asteroid"
AsterType "Amor"
Radius 0.145
Orbit
{
SemiMajorAxis 2.25396073070575E-08 // 3.4 km
Period 0.0031650232 // 1.156 days
MeanAnomaly 0
ArgOfPericenter 180
Eccentricity 0.07
Inclination 0
AscendingNode 0
RefPlane "Equator"
}
}
"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
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| Silicon | Date: Monday, 09.05.2016, 21:18 | Message # 21 |
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Astronaut
Group: Users
United States
Messages: 51
Status: Offline
| 1139 Atami, 1993 QO, 5261 Eureka, and 26074 Carlwirtz
Code Barycenter "Atami/(1139) Atami"
{
ParentBody "Sol"
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.9476
Period 2.7181
Eccentricity 0.2555
Inclination 13.085
AscendingNode 213.37
ArgOfPericenter 206.63
MeanAnomaly 35.579
RefPlane "Ecliptic"
}
}
Asteroid "Atami A/(1139) Atami A"
{
ParentBody "Atami"
Class "Asteroid"
Radius 3 //Volume 113.1 = 63.34% of total
Mass 3.031E-11 //Assuming a density of 1.6 g/cm^3
RotationPeriod 27.45
Obliquity 0
Orbit
{
SemiMajorAxis 3.6759E-8 // separation 15 km
Period 0.003132
Eccentricity 0
Inclination 0
ArgOfPericenter 0
MeanAnomaly 0
RefPlane "Equator"
}
}
DwarfMoon "Atami B/(1139) Atami B"
{
ParentBody "Atami"
Class "Asteroid"
Radius 2.5 //Volume 65.45 = 36.66% of total
Mass 1.753E-11 //Assuming a density of 1.6 g/cm^3
RotationPeriod 27.45
Obliquity 0
Orbit
{
SemiMajorAxis 6.351E-8 // separation 15 km
Period 0.003132
Eccentricity 0
Inclination 0
ArgOfPericenter 180
MeanAnomaly 0
RefPlane "Equator"
}
}
Asteroid "1993 QO/(16635) 1993 QO"
{
ParentBody "Sol"
Class "Asteroid"
Radius 2.305
RotationPeriod 7.622
Orbit
{
Epoch 2457400.5
SemiMajorAxis 2.2983
Period 3.4843
Eccentricity 0.28424
Inclination 21.943
AscendingNode 313.81
ArgOfPericenter 77.948
MeanAnomaly 4.7118
RefPlane "Ecliptic"
}
}
DwarfMoon "S2007 16635 1"
{
ParentBody "1993 QO"
Class "Asteroid"
Radius 0.72
RotationPeriod 2.2083
Orbit
{
SemiMajorAxis 8.022E-8
Period 0.00368
Inclination 0
RefPlane "Equator"
}
}
Asteroid "Eureka/(5261) Eureka"
{
ParentBody "Sol"
Class "Asteroid"
Radius 0.595
RotationPeriod 2.6902
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.5235
Period 1.880519722
Eccentricity 0.064859
Inclination 20.28
AscendingNode 245.06
ArgOfPericenter 95.47
MeanAnomaly 295.62
RefPlane "Ecliptic"
}
}
DwarfMoon "S2011 5261 1"
{
ParentBody "Eureka"
Class "Asteroid"
Radius 0.23
Orbit
{
SemiMajorAxis 1.4E-8
Period 0.001931
Inclination 0
RefPlane "Equator"
}
}
Asteroid "Carlwirtz/(26074) Carlwirtz"
{
ParentBody "Sol"
Class "Asteroid"
Radius 1.81
RotationPeriod 2.4593
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.811
Period 2.4372
Eccentricity 0.088958
Inclination 31.614
AscendingNode 102.83
ArgOfPericenter 73.385
MeanAnomaly 190.66
RefPlane "Ecliptic"
}
}
DwarfMoon "S2013 26074 1"
{
ParentBody "Carlwirtz"
Class "Asteroid"
Radius 0.2
Orbit
{
SemiMajorAxis 4.08E-8
Period 0.001838
Inclination 0
RefPlane "Equator"
}
} |
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| Silicon | Date: Monday, 09.05.2016, 22:28 | Message # 22 |
|
Astronaut
Group: Users
United States
Messages: 51
Status: Offline
| 41 Daphne, 174567 Varda, 88611 Teharonhiawako, 2002 VT130, and 2002 XH91. All TNOs. (Except Daphne)
VT130 and XH91 have no permanent designations so I was unsure how to name them.
Also the version of Teharonhiawako that comes packaged with SE does not get replaced by this one. I dont know why.
Code Asteroid "Daphne/(41) Daphne"
{
ParentBody "Sol"
Class "Asteroid"
Radius 87
Mass 1.057E-6
RotationPeriod 5.9879856
Orbit
{
Epoch 2457400.5
SemiMajorAxis 2.7607
Period 4.5871
Eccentricity 0.27514
Inclination 15.793
AscendingNode 178.09
ArgOfPericenter 46.013
MeanAnomaly 107.31
RefPlane "Ecliptic"
}
}
DwarfMoon "S/2008 (41) 1"
{
ParentBody "Daphne"
Class "Asteroid"
Radius 1
Orbit
{
SemiMajorAxis 2.961E-6
Period 0.003012
Eccentricity 0
Inclination 0
RefPlane "Equator"
}
}
Barycenter "Varda-Ilmare"
{
ParentBody "Sol"
Orbit
{
Epoch 2457400.5
SemiMajorAxis 45.6342
Period 308.279
Eccentricity 0.141677
Inclination 21.5045
AscendingNode 184.032
ArgOfPericenter 184.310
MeanAnomaly 263.701
RefPlane "Ecliptic"
}
}
Asteroid "Varda/174567 Varda"
{
ParentBody "Varda-Ilmare"
Class "IceWorld"
Radius 352.5 //Volume 1.83E8 = 88.15% of total
Mass 3.891E-5 //Assuming a density of 1.27 g/cm^3
Oblateness 0
RotationPeriod 5.91
Obliquity 100
EqAscendNode 0
Surface
{
colorSea (0.144, 0.084, 0.045, 1.000)
colorShelf (0.189, 0.116, 0.065, 1.000)
colorBeach (0.305, 0.151, 0.069, 0.200)
colorDesert (0.333, 0.169, 0.082, 0.200)
colorLowland (0.361, 0.178, 0.086, 0.200)
colorUpland (0.389, 0.213, 0.102, 0.200)
colorRock (0.920, 0.870, 0.660, 0.150)
colorSnow (1.000, 1.000, 1.000, 0.154)
colorLowPlants (0.361, 0.178, 0.086, 0.200)
colorUpPlants (0.389, 0.213, 0.102, 0.200)
}
Orbit
{
SemiMajorAxis 3.8022E-6 // separation 4800 km
Period 0.015745
Eccentricity 0.017
Inclination 100
ArgOfPericenter 0
MeanAnomaly 0
AscendingNode 0
RefPlane "Equator"
}
}
DwarfMoon "Ilmare/Varda I Ilmare"
{
ParentBody "Varda-Ilmare"
Class "IceWorld"
Radius 180.5 //Volume 2.46E7 = 11.85% of total
Mass 5.231E-6 //Assuming a density of 1.27 g/cm^3
Surface
{
colorSea (0.144, 0.084, 0.045, 1.000)
colorShelf (0.189, 0.116, 0.065, 1.000)
colorBeach (0.305, 0.151, 0.069, 0.200)
colorDesert (0.333, 0.169, 0.082, 0.200)
colorLowland (0.361, 0.178, 0.086, 0.200)
colorUpland (0.389, 0.213, 0.102, 0.200)
colorRock (0.920, 0.870, 0.660, 0.150)
colorSnow (1.000, 1.000, 1.000, 0.154)
colorLowPlants (0.361, 0.178, 0.086, 0.200)
colorUpPlants (0.389, 0.213, 0.102, 0.200)
}
Orbit
{
SemiMajorAxis 2.8885E-5 // separation 4800 km
Period 0.015745
Eccentricity 0.017
Inclination 100
ArgOfPericenter 180
MeanAnomaly 0
AscendingNode 0
RefPlane "Equator"
}
}
Barycenter "Teharonhiawako-Sawiskera"
{
ParentBody "Sol" //Volume 4.07E6
Orbit
{
Epoch 2457400.5
SemiMajorAxis 43.894
Period 290.816
Eccentricity 0.029879
Inclination 2.58688
AscendingNode 304.84
ArgOfPericenter 233.57
MeanAnomaly 159.46
RefPlane "Ecliptic"
}
}
Asteroid "Teharonhiawako/(88611) Teharonhiawako"
{
ParentBody "Teharonhiawako-Sawiskera"
Class "Asteroid"
Radius 89 //Volume 2.95E6 = 72.48%
Mass 2.962E-7
RotationPeriod 9.505
Orbit
{
Epoch 2457400.5
SemiMajorAxis 5.0912E-5 // 27670 km
Period 2.269068
Eccentricity 0.2494
Inclination 144.42
AscendingNode 54.22
ArgOfPericenter 200.1
MeanAnomaly 296.2
RefPlane "Equator"
}
}
DwarfMoon "Sawiskera/Teharonhiawako I Sawiskera"
{
ParentBody "Teharonhiawako-Sawiskera"
Class "Asteroid"
Radius 64.5 //Volume 1.12E6 = 27.52%
Mass 6.71E-8
RotationPeriod 9.5
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.34088E-4 // 27670 km
Period 2.269068
Eccentricity 0.2494
Inclination 144.42
AscendingNode 54.22
ArgOfPericenter 20.1
MeanAnomaly 296.2
RefPlane "Equator"
}
}
Barycenter "2002 XH91 Barycenter"
{
ParentBody "Sol" //Volume 1.722E7
Orbit
{
Epoch 2457400.5
SemiMajorAxis 44.182
Period 293.68
Eccentricity 0.08389
Inclination 4.98507
AscendingNode 80.4332
ArgOfPericenter 183.96
MeanAnomaly 212.86
RefPlane "Ecliptic"
}
}
Asteroid "2002 XH91"
{
ParentBody "2002 XH91 Barycenter"
Class "Asteroid"
Radius 149 //Volume 1.39E7 = 80.72%
Orbit
{
Epoch 2457400.5
SemiMajorAxis 2.56E-5 // 19900 km
Period 0.520202
Eccentricity 0
Inclination 0
ArgOfPericenter 0
MeanAnomaly 0
RefPlane "Equator"
}
}
DwarfMoon "S2008 2002 XH91 1"
{
ParentBody "2002 XH91 Barycenter"
Class "Asteroid"
Radius 92.5 //Volume 3.32E6 = 19.28%
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.07E-4 // 19900 km
Period 0.520202
Eccentricity 0
Inclination 0
ArgOfPericenter 180
MeanAnomaly 0
RefPlane "Equator"
}
}
Barycenter "2002 VT130 Barycenter"
{
ParentBody "Sol" //Volume 12.79E6
Orbit
{
Epoch 2457400.5
SemiMajorAxis 42.623
Period 278.271
Eccentricity 0.02952
Inclination 1.1615
AscendingNode 334.86
ArgOfPericenter 350.7
MeanAnomaly 105.85
RefPlane "Ecliptic"
}
}
Asteroid "2002 VT130"
{
ParentBody "2002 VT130 Barycenter"
Class "Asteroid"
Radius 125.5 //Volume 8.28E6 = 64.74%
RotationPeriod 235.2
Obliquity 0
Orbit
{
Epoch 2457400.5
SemiMajorAxis 5.867E-6 // 2490 km
Period 0.026831
Eccentricity 0
Inclination 0
ArgOfPericenter 0
MeanAnomaly 0
RefPlane "Equator"
}
}
DwarfMoon "S2008 2002 VT130 1"
{
ParentBody "2002 VT130 Barycenter"
Class "Asteroid"
Radius 102.5 //Volume 4.51E6 = 35.26%
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.077E-5 // 2490 km
Period 0.026831
Eccentricity 0
Inclination 0
ArgOfPericenter 180
MeanAnomaly 0
RefPlane "Equator"
}
}
Edited by Silicon - Tuesday, 10.05.2016, 17:14 |
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| Silicon | Date: Tuesday, 10.05.2016, 17:44 | Message # 23 |
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Astronaut
Group: Users
United States
Messages: 51
Status: Offline
| NEA 2002 AM31 and 5674 Wolff
Code Asteroid "2002 AM31/153958 2002 AM31"
{
ParentBody "Sol"
Class "Asteroid"
AsterType "Apollo"
Radius 0.225
Mass 2.411E-14 //Assuming a density of 3 g/cm^3
RotationPeriod 2.817
Orbit
{
Epoch 2457400.5
SemiMajorAxis 1.703
Period 2.2225
Eccentricity 0.45168
Inclination 4.6448
AscendingNode 144.41
ArgOfPericenter 197.83
MeanAnomaly 282.02
RefPlane "Ecliptic"
}
}
DwarfMoon "S/2012 (153958) 1"
{
ParentBody "2002 AM31"
Class "Asteroid"
AsterType "Apollo"
Radius 0.055
Mass 3.501E-16 //Assuming a density of 3 g/cm^3
Orbit
{
SemiMajorAxis 1E-8 // separation 1.5 km
Period 0.003001
Eccentricity 0.45
Inclination 0
RefPlane "Equator"
}
}
Barycenter "Wolff Barycenter"
{
ParentBody "Sol"
Orbit
{
Epoch 2457400.5
SemiMajorAxis 2.3574
Period 3.6194
Eccentricity 0.16635
Inclination 1.7035
AscendingNode 39.819
ArgOfPericenter 311.55
MeanAnomaly 40.268
RefPlane "Ecliptic"
}
}
Asteroid "Wolff/5674 Wolff"
{
ParentBody "Wolff Barycenter"
Class "Asteroid"
Radius 2.36 //Volume 55.06 = 66.07%
RotationPeriod 93.7
Obliquity 0
EqAscendNode 0
Orbit
{
SemiMajorAxis 6.803E-8 // separation 30 km
Period 0.010689
Eccentricity 0
Inclination 0
ArgOfPericenter 0
MeanAnomaly 0
AscendingNode 0
RefPlane "Equator"
}
}
DwarfMoon "S/2015 5674 1"
{
ParentBody "Wolff Barycenter"
Class "Asteroid"
Radius 1.89 //Volume 28.28 = 33.93%
RotationPeriod 93.7
Orbit
{
SemiMajorAxis 1.325E-7 // separation 30 km
Period 0.010689
Eccentricity 0
Inclination 0
ArgOfPericenter 180
MeanAnomaly 0
AscendingNode 0
RefPlane "Equator"
}
}
Edited by Silicon - Tuesday, 10.05.2016, 19:08 |
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| Mosfet | Date: Tuesday, 10.05.2016, 21:04 | Message # 24 |
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World Builder
Group: Users
Italy
Messages: 754
Status: Offline
| Quote Silicon (  ) Teharonhiawako that comes packaged with SE does not get replaced by this one. I dont know why.
Haven't tried yet, but since the asteroid is not replaced by a barycenter with the same name, I suspect that will exist two asteroids with the same name, possibly different locations because of different epoch. In that case, the SE packaged one should be removed by a "Remove script" in a modified Asteroids-small.sc, I think.
Changing the name of the barycenter it's the easy way :)
Edit: I see you did the same for the others, so if only Teharonhiawako behaved like this I'm clueless too. Maybe someone else will help solve the mistery.
Edit 2:
I just tried. In order to use the script as it is, we need to remove the existing SE version of "Teharon... that, before declaring the new one with:
Code Remove "Teharonhiawako"
{ParentBody "Sol"}
Then the new one will replace the old one. In SE.log:
Code [MT] "data/catalogs/planets/MS-Asteroids-bin-Test.sc" line 108: Removing body "Teharonhiawako/(88611) Teharonhiawako" ("data/catalogs/Catalogs0974.pak/planets/KuiperBelt-small.sc" line 933)
The same eventually for other duplicates. If the name used for the original asteroid is assigned to the barycenter, then the original asteroid is replaced by the barycenter, and the data will result as "merged" in SE.log.
"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
Edited by Mosfet - Tuesday, 10.05.2016, 21:43 |
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| JackDole | Date: Tuesday, 10.05.2016, 21:21 | Message # 25 |
 Star Engineer
Group: Local Moderators
Germany
Messages: 1742
Status: Offline
| Quote Silicon ( ) Also the version of Teharonhiawako that comes packaged with SE does not get replaced by this one.
Try this:
Code Remove "Teharonhiawako
{
ParentBody "Sol"
}
Set it to the beginning of the script.
Don't forget to look here.
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| Mosfet | Date: Tuesday, 10.05.2016, 21:47 | Message # 26 |
|
World Builder
Group: Users
Italy
Messages: 754
Status: Offline
| oops, sorry JackDole, didn't see your post. Yes, it will work placed just before the new "Asteroid" declaration.
About Semimajor axis value for barycenters:
I don't know if it makes sense what I did in order to calculate a plausible barycenter, like others did, so I'll write here. My reasoning is as follows:
Usually a binary asteroid is made by the same material, then the value of the density is the same.
So the mass ratio and the volume ratio is the same. MA/MB = VA/VB
but given the approximated sphere volume of radius r, V= 4/3*pi*r3,
VA/VB = rA3/rB3
and
VA/(VA+VB) = rA3/(rA3+rB3)
which gives the semimajor axis for the barycenter of asteroid A, knowing the separation and radii of A and B components:
SemimajorAxisA = (1-(rA3/(rA3+rB3))*SeparationAB
"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
Edited by Mosfet - Tuesday, 10.05.2016, 23:10 |
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| Silicon | Date: Wednesday, 11.05.2016, 02:08 | Message # 27 |
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Astronaut
Group: Users
United States
Messages: 51
Status: Offline
| Your math is correct however it is based off the assumption that the two objects have the same density and that asteroids are perfect spheres. This is fine for when the true mass of a pair is unknown (however I tend to avoid using barycenters if this is the case) however if the true mass is known I would recommend using the full formula.
Quote Mosfet ( ) Usually a binary asteroid is made by the same material, then the value of the density is the same.
It is not easy to make this assumption because many asteroids are "rubble piles", loss rock held together only by self gravitation. This means that even in asteroids composed of the same material they can have differences in their densities depending on how much of their interior is a void.
Edited by Silicon - Wednesday, 11.05.2016, 02:39 |
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| Mosfet | Date: Wednesday, 11.05.2016, 08:48 | Message # 28 |
|
World Builder
Group: Users
Italy
Messages: 754
Status: Offline
| Thanks for the clarification, I see why you prefer not to use a barycenter in case of unknown mass.
My reasoning was indeed started by the urge to find an aesthetically pleasing and plausible barycenter with a minimum of parameters, despite the fact that knowing porosity and other physical data could significantly change the true barycenter position.
Edit:
Just updated the OP. Regarding names of not yet designated asteroids, I'd say let's use the provisional name. With names like "S/2008 (41) 1" the slash must be removed because SE use that character to part various catalog designations of objects, or in the search window we'll have a bunch of objects with a single "S" as designation.
As in the case of 88611 Teharonhiawako, The original SE object had to be removed by using:
Remove "Teharonhiawako"
{ParentBody "Sol"}
before declaring the new object.
This is true also for other objects that could be duplicated, as in the case of Varda, a somewhat recent assigned name I guess, because it's in SE catalog with the name "2003 MW12".
"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
Edited by Mosfet - Wednesday, 11.05.2016, 15:13 |
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| Silicon | Date: Wednesday, 11.05.2016, 15:40 | Message # 29 |
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Astronaut
Group: Users
United States
Messages: 51
Status: Offline
| I made some fixes to the orbit lines. I had to change some of the "DwarfMoon" tags to "Asteroid" tags to keep asteroids from displaying when orbit lines are toggled. It appears that when the "DwarfMoon" tag is used on systems with more than one barycenter or on the more massive companion of binaries it will display the orbit around around the Sun.
The altered bodies are Balam, Litva, and Hermes.
I wasn't able to fix the orbits from TC36. It still displays it's orbit when orbit lines are toggled.
EDIT:
Sorry this was my fault! I had my SE settings set to display the orbits of dwarf moons. Because this setting is off by default the average user wont notice it. There is no need to update OP. At least until the "Scorched Asteroid Bug" is fixed.
EDIT 2:
I did some experimenting and I found out that SE does not like it when you give a barycenter a mass value. In short if you give a barycenter mass SE thinks that it is the barycenter of a star.
The barycenters for TC36 have this and should be fixed in OP. I have attached the fixed Asteroids-bin
Edited by Silicon - Wednesday, 11.05.2016, 18:43 |
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| Mosfet | Date: Wednesday, 11.05.2016, 21:55 | Message # 30 |
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World Builder
Group: Users
Italy
Messages: 754
Status: Offline
| You are saying that "Barycenter" becomes like "StarBarycenter"? if this is a bug, it should be described in the troubleshooting session for 0.9.7.4 .
would you care to elaborate in order to see if I can replicate the issue?
"Time is illusion. Lunchtime doubly so."
Douglas N. Adams
My mods
Asus x555ub: cpu i5-6200u - ram 4gb - gpu nvidia geforce 940m 2gb vram
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