2015 HT21
2015HT21, 2008 RZ4, 2008RZ4, 2013 YJ36, 2013YJ36, K08R04Z, K13Y36J, K15H21T, l2993
All data for this body: [vot]
MPC data
| Name (number) |
2015 HT21 (472993) |
| a |
2.66533 |
| e |
0.08919 |
| i / sin(i) |
9.3540 /
0.16253
|
| q |
2.42760
|
| Q |
2.90306
|
| ω |
282.6992 |
| Node |
181.0475 |
| m |
201.0499 |
| n |
0.2265 |
| Epoch |
2460800.5 |
| nobs |
275 |
| nopp |
13 |
| Years observed |
2006-2025 |
| rms |
0.94 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.665 |
|
| ep |
0.104 |
|
| sin(ip) |
0.165 |
|
| G |
0.150 |
|
| H |
16.860 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
D |
| Spectral Class Score |
1.462 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.6653 |
0.1044 |
0.1646 |
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 |
| 16.86 |
|
|
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 |
| D |
D |
0.2437 |
0.2437 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |