2001 QH21
2001QH21, K01Q21H, K8328
All data for this body: [vot]
MPC data
| Name (number) |
2001 QH21 (208328) |
| a |
2.73499 |
| e |
0.30581 |
| i / sin(i) |
11.3612 /
0.19699
|
| q |
1.89861
|
| Q |
3.57136
|
| ω |
150.3454 |
| Node |
164.6489 |
| m |
105.4864 |
| n |
0.2179 |
| Epoch |
2460800.5 |
| nobs |
785 |
| nopp |
14 |
| Years observed |
2000-2025 |
| rms |
0.80 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.731 |
|
| ep |
0.280 |
|
| sin(ip) |
0.189 |
|
| G |
0.150 |
|
| H |
16.190 |
|
| Mass |
|
|
| D |
1.36 |
0.260 |
| pV |
0.417 |
0.1914 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
5.969 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.7310 |
0.2796 |
0.1887 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 1.36 |
0.260 |
0.260 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.417 |
0.1914 |
0.1914 |
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 |
| 16.19 |
|
|
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 |
|
0.865 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |
| S |
S |
0.1298 |
0.1298 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |