2017 UR21
2017UR21, K17U21R, s0621
All data for this body: [vot]
MPC data
| Name (number) |
2017 UR21 (540621) |
| a |
2.77709 |
| e |
0.02985 |
| i / sin(i) |
5.5866 /
0.09735
|
| q |
2.69420
|
| Q |
2.85997
|
| ω |
199.4647 |
| Node |
79.8404 |
| m |
315.7665 |
| n |
0.2130 |
| Epoch |
2460800.5 |
| nobs |
164 |
| nopp |
11 |
| Years observed |
2008-2025 |
| rms |
1.05 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.777 |
|
| ep |
0.045 |
|
| sin(ip) |
0.078 |
|
| G |
0.150 |
|
| H |
17.160 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
B |
| Spectral Class Score |
0.079 |
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 1726 |
Hoffmeister |
0 |
Hoffmeister |
|
Novakovic |
2019EPSC...13.1671N |
HCM |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.7772 |
0.0450 |
0.0784 |
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 |
| 17.16 |
|
|
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 |
| B |
B |
0.0132 |
0.0132 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |