2017 XA21
2017XA21, ~0V64, 1998 WB46, 1998WB46, J98W46B, K17X21A
All data for this body: [vot]
MPC data
| Name (number) |
2017 XA21 (739540) |
| a |
2.42468 |
| e |
0.03888 |
| i / sin(i) |
6.0374 /
0.10518
|
| q |
2.33040
|
| Q |
2.51896
|
| ω |
224.4308 |
| Node |
32.1915 |
| m |
149.6769 |
| n |
0.2611 |
| Epoch |
2460800.5 |
| nobs |
134 |
| nopp |
11 |
| Years observed |
1998-2024 |
| rms |
1.00 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.425 |
|
| ep |
0.054 |
|
| sin(ip) |
0.097 |
|
| G |
0.150 |
|
| H |
17.920 |
|
| 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 |
| 2.4249 |
0.0538 |
0.0974 |
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 |
| 17.92 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |