1999 NP4
1999NP4, 1996 VH31, 1996VH31, 38210, J96V31H, J99N04P
All data for this body: [vot]
MPC data
| Name (number) |
1999 NP4 (38210) |
| a |
2.47223 |
| e |
0.09226 |
| i / sin(i) |
7.9268 /
0.13791
|
| q |
2.24413
|
| Q |
2.70033
|
| ω |
153.5571 |
| Node |
109.3906 |
| m |
258.8713 |
| n |
0.2536 |
| Epoch |
2460800.5 |
| nobs |
1534 |
| nopp |
21 |
| Years observed |
1996-2025 |
| rms |
0.80 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.471 |
|
| ep |
0.102 |
|
| sin(ip) |
0.122 |
|
| G |
0.150 |
|
| H |
15.380 |
|
| Mass |
|
|
| D |
1.96 |
0.531 |
| pV |
0.419 |
0.2210 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.4715 |
0.1016 |
0.1225 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 1.96 |
0.531 |
0.531 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.419 |
0.2210 |
0.2210 |
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 |
| 15.38 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |