1999RJ31
1985SA4, 1991GT11, 1998FJ129, 20511, J85S04A, J91G11T, J98FC9J, J99R31J
All data for this body: [vot]
MPC data
| Name (number) |
1999RJ31 (20511) |
| Packed designation |
20511 |
| a |
2.31134 |
| e |
0.09945 |
| i / sin(i) |
7.5078 /
0.13066
|
| q |
2.08148
|
| Q |
2.54120
|
| ω |
285.9742 |
| Node |
342.3607 |
| m |
196.5853 |
| n |
0.2805 |
| Epoch |
2459600.5 |
| nobs |
2381 |
| nopp |
19 |
| Years observed |
1985-2022 |
| rms |
0.63 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.312 |
|
| ep |
0.093 |
|
| sin(ip) |
0.134 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
14.320 |
|
| Mass |
|
|
| D |
3.54 |
0.580 |
| pV |
0.323 |
0.1690 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.3115 |
0.0929 |
0.1339 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Jan-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 3.54 |
0.580 |
0.580 |
Masiero |
2012ApJ...759L...8M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.323 |
0.1690 |
0.1690 |
Masiero |
2012ApJ...759L...8M |
NEATM |
G data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.15 |
|
|
MPC-2022-01-18 |
MPC-2022-01-18 |
Phot |
H data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 14.32 |
|
|
MPC-2022-01-18 |
MPC-2022-01-18 |
Phot |