1998 SQ21
1998SQ21, I7775, J98S21Q
All data for this body: [vot]
MPC data
| Name (number) |
1998 SQ21 (187775) |
| a |
2.33510 |
| e |
0.18375 |
| i / sin(i) |
4.3434 /
0.07573
|
| q |
1.90602
|
| Q |
2.76418
|
| ω |
319.4713 |
| Node |
0.7573 |
| m |
41.4396 |
| n |
0.2762 |
| Epoch |
2460200.5 |
| nobs |
620 |
| nopp |
15 |
| Years observed |
1998-2023 |
| rms |
0.76 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.334 |
|
| ep |
0.147 |
|
| sin(ip) |
0.075 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
16.730 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
| Rotational Period |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.3345 |
0.1473 |
0.0750 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
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 |
| 16.73 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |