1999 XL31
1999XL31, 1998 QW49, 1998QW49, 45061, J98Q49W, J99X31L
All data for this body: [vot]
MPC data
| Name (number) |
1999 XL31 (45061) |
| a |
2.57277 |
| e |
0.01775 |
| i / sin(i) |
10.1449 /
0.17614
|
| q |
2.52709
|
| Q |
2.61845
|
| ω |
330.6212 |
| Node |
133.7552 |
| m |
45.8046 |
| n |
0.2388 |
| Epoch |
2460800.5 |
| nobs |
3205 |
| nopp |
22 |
| Years observed |
1992-2025 |
| rms |
0.72 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.573 |
|
| ep |
0.052 |
|
| sin(ip) |
0.165 |
|
| G |
0.150 |
|
| H |
14.060 |
|
| Mass |
|
|
| D |
3.97 |
0.103 |
| pV |
0.372 |
0.0761 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
A |
| Spectral Class Score |
3.312 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.5731 |
0.0522 |
0.1653 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 3.97 |
0.103 |
0.103 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.372 |
0.0761 |
0.0761 |
Masiero |
2011ApJ...741...68M |
NEATM |
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 |
| 14.06 |
|
|
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 |
| A |
|
0.552 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |