2017 YR21
2017YR21, ~0FJf, K17Y21R
All data for this body: [vot]
MPC data
| Name (number) |
2017 YR21 (678879) |
| a |
3.03602 |
| e |
0.04323 |
| i / sin(i) |
1.5171 /
0.02648
|
| q |
2.90477
|
| Q |
3.16727
|
| ω |
125.3455 |
| Node |
307.9582 |
| m |
170.5107 |
| n |
0.1863 |
| Epoch |
2460800.5 |
| nobs |
89 |
| nopp |
10 |
| Years observed |
2008-2024 |
| rms |
0.51 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.034 |
|
| ep |
0.046 |
|
| sin(ip) |
0.046 |
|
| G |
0.150 |
|
| H |
17.340 |
|
| 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 |
| 3.0345 |
0.0463 |
0.0456 |
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 |
| 17.34 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |