1999 RU221
1999RU221, 1989 YZ4, 1989YZ4, 1997 AN15, 1997AN15, 25355, J89Y04Z, J97A15N, J99RM1U
All data for this body: [vot]
MPC data
| Name (number) |
1999 RU221 (25355) |
| a |
2.29997 |
| e |
0.16639 |
| i / sin(i) |
5.6991 /
0.09930
|
| q |
1.91728
|
| Q |
2.68266
|
| ω |
148.1407 |
| Node |
283.0857 |
| m |
78.5171 |
| n |
0.2826 |
| Epoch |
2460800.5 |
| nobs |
2338 |
| nopp |
21 |
| Years observed |
1989-2025 |
| rms |
0.75 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.300 |
|
| ep |
0.176 |
|
| sin(ip) |
0.111 |
|
| G |
0.150 |
|
| H |
15.120 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
10.000 |
| Period quality |
1 |
| Spectral Class |
S |
| Spectral Class Score |
6.737 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.3005 |
0.1762 |
0.1109 |
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 |
| 15.12 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Periods
| Value |
Quality |
Side real or Synodic |
Author |
Reference |
Method |
| 10.02 |
1 |
Synodic |
Pravec |
LCDB |
Lightcurve |
| 9.9452 |
2 |
Sidereal |
Durech |
2023A&A...675A..24D |
Model |