1999 NL55
1999NL55, 2000 WH4, 2000WH4, A1891, J99N55L, K00W04H
All data for this body: [vot]
MPC data
| Name (number) |
1999 NL55 (101891) |
| a |
3.09229 |
| e |
0.14628 |
| i / sin(i) |
14.4239 /
0.24909
|
| q |
2.63994
|
| Q |
3.54464
|
| ω |
4.3182 |
| Node |
264.1146 |
| m |
299.5068 |
| n |
0.1813 |
| Epoch |
2460800.5 |
| nobs |
1665 |
| nopp |
21 |
| Years observed |
1999-2025 |
| rms |
0.78 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.097 |
|
| ep |
0.168 |
|
| sin(ip) |
0.260 |
|
| G |
0.150 |
|
| H |
14.200 |
|
| Mass |
|
|
| D |
6.72 |
0.144 |
| pV |
0.129 |
0.0138 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 3.0969 |
0.1675 |
0.2596 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 6.72 |
0.144 |
0.144 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.129 |
0.0138 |
0.0138 |
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 |
| 14.20 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |