1999 RA221
1999RA221, 1995 GC3, 1995GC3, 2002 NL15, 2002NL15, 56311, J95G03C, J99RM1A, K02N15L
All data for this body: [vot]
MPC data
| Name (number) |
1999 RA221 (56311) |
| a |
2.17888 |
| e |
0.16805 |
| i / sin(i) |
5.5574 /
0.09684
|
| q |
1.81272
|
| Q |
2.54505
|
| ω |
268.0041 |
| Node |
57.0490 |
| m |
13.0401 |
| n |
0.3064 |
| Epoch |
2460800.5 |
| nobs |
787 |
| nopp |
20 |
| Years observed |
1995-2025 |
| rms |
0.78 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.179 |
|
| ep |
0.096 |
|
| sin(ip) |
0.089 |
|
| G |
0.150 |
|
| H |
16.660 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.1790 |
0.0964 |
0.0889 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
G data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.15 |
|
|
MPC-2023-12-94 |
MPC-2023-12-94 |
Phot |
H data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 16.66 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |