1991 UM
1991UM, 06728, 1978 VT11, 1978VT11, J78V11T, J91U00M
All data for this body: [vot]
MPC data
| Name (number) |
1991 UM (6728) |
| a |
2.21833 |
| e |
0.09897 |
| i / sin(i) |
1.9570 /
0.03415
|
| q |
1.99879
|
| Q |
2.43787
|
| ω |
21.1148 |
| Node |
10.5141 |
| m |
52.9453 |
| n |
0.2983 |
| Epoch |
2460800.5 |
| nobs |
3910 |
| nopp |
25 |
| Years observed |
1978-2025 |
| rms |
0.67 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.218 |
|
| ep |
0.083 |
|
| sin(ip) |
0.031 |
|
| G |
0.150 |
|
| H |
14.930 |
|
| Mass |
|
|
| D |
2.84 |
0.522 |
| pV |
0.316 |
0.0736 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
V |
| Spectral Class Score |
6.000 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.2178 |
0.0834 |
0.0309 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.84 |
0.522 |
0.522 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.316 |
0.0736 |
0.0736 |
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 |
| 14.93 |
|
|
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 |
| V |
|
1.000 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |