2001 HG21
2001HG21, 2000 CM102, 2000CM102, H6158, K00CA2M, K01H21G
All data for this body: [vot]
MPC data
| Name (number) |
2001 HG21 (176158) |
| a |
3.98340 |
| e |
0.09833 |
| i / sin(i) |
6.1816 /
0.10768
|
| q |
3.59170
|
| Q |
4.37511
|
| ω |
340.8251 |
| Node |
218.8070 |
| m |
26.9614 |
| n |
0.1240 |
| Epoch |
2460800.5 |
| nobs |
814 |
| nopp |
21 |
| Years observed |
2000-2025 |
| rms |
0.81 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.965 |
|
| ep |
0.170 |
|
| sin(ip) |
0.122 |
|
| G |
0.150 |
|
| H |
13.980 |
|
| Mass |
|
|
| D |
9.63 |
0.380 |
| pV |
0.076 |
0.0120 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 3.9651 |
0.1703 |
0.1219 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 9.63 |
0.380 |
0.380 |
Grav |
2012ApJ...744..197G |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.076 |
0.0120 |
0.0120 |
Grav |
2012ApJ...744..197G |
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 |
| 13.98 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |