1999 NP31
1999NP31, 2000 YB121, 2000YB121, 38222, J99N31P, K00YC1B
All data for this body: [vot]
MPC data
| Name (number) |
1999 NP31 (38222) |
| a |
2.58740 |
| e |
0.12248 |
| i / sin(i) |
3.5035 /
0.06111
|
| q |
2.27049
|
| Q |
2.90430
|
| ω |
212.1241 |
| Node |
101.5106 |
| m |
60.4698 |
| n |
0.2368 |
| Epoch |
2460800.5 |
| nobs |
1923 |
| nopp |
20 |
| Years observed |
1998-2024 |
| rms |
0.76 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.588 |
|
| ep |
0.105 |
|
| sin(ip) |
0.048 |
|
| G |
0.150 |
|
| H |
14.920 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
5.952 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.5883 |
0.1048 |
0.0482 |
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 |
| 14.92 |
|
|
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 |
| S |
|
0.992 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |