Massenet
18381, 1990 QB11, 1990QB11, 1991 YU, 1991YU, J90Q11B, J91Y00U
All data for this body: [vot]
MPC data
| Name (number) |
Massenet (18381) |
| a |
2.79935 |
| e |
0.14219 |
| i / sin(i) |
6.6361 /
0.11556
|
| q |
2.40131
|
| Q |
3.19738
|
| ω |
323.8249 |
| Node |
137.9708 |
| m |
42.6540 |
| n |
0.2104 |
| Epoch |
2460800.5 |
| nobs |
3477 |
| nopp |
23 |
| Years observed |
1990-2025 |
| rms |
0.69 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.800 |
|
| ep |
0.153 |
|
| sin(ip) |
0.101 |
|
| G |
0.150 |
|
| H |
13.270 |
|
| Mass |
|
|
| D |
8.76 |
0.240 |
| pV |
0.145 |
0.0240 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
9.919 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.7998 |
0.1533 |
0.1012 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 8.76 |
0.240 |
0.240 |
Masiero |
2012ApJ...759L...8M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.145 |
0.0240 |
0.0240 |
Masiero |
2012ApJ...759L...8M |
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 |
| 13.27 |
|
|
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 |
|
0.657 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |
| S |
S |
0.9961 |
0.9410 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |
| V |
S |
0.4258 |
0.9410 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |