1999 XQ254
1999XQ254, 2009 BM1, 2009BM1, J99XP4Q, K09B01M, S5460
All data for this body: [vot]
MPC data
| Name (number) |
1999 XQ254 (285460) |
| a |
2.71418 |
| e |
0.07181 |
| i / sin(i) |
11.8297 /
0.20500
|
| q |
2.51927
|
| Q |
2.90910
|
| ω |
257.2142 |
| Node |
287.0376 |
| m |
172.9358 |
| n |
0.2204 |
| Epoch |
2460800.5 |
| nobs |
338 |
| nopp |
17 |
| Years observed |
1999-2025 |
| rms |
0.92 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.715 |
|
| ep |
0.103 |
|
| sin(ip) |
0.225 |
|
| G |
0.150 |
|
| H |
16.260 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
V |
| Spectral Class Score |
0.928 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.7153 |
0.1032 |
0.2246 |
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 |
| 16.26 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Spectral Class Data
| Class 1 |
Class 2 |
Probability of Class 1 |
Probability of Class 2 |
Taxonomy |
Wavelength |
Author |
Reference |
Method |
| D |
D |
0.0746 |
0.0220 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |
| V |
D |
0.0595 |
0.0220 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |
| V |
D |
0.0952 |
0.0220 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |