1981 EX9
1981EX9, 1994 PB39, 1994PB39, 35018, J81E09X, J94P39B
All data for this body: [vot]
MPC data
| Name (number) |
1981 EX9 (35018) |
| a |
3.11206 |
| e |
0.07715 |
| i / sin(i) |
8.5320 /
0.14836
|
| q |
2.87198
|
| Q |
3.35214
|
| ω |
46.1707 |
| Node |
319.1295 |
| m |
182.0557 |
| n |
0.1795 |
| Epoch |
2460800.5 |
| nobs |
972 |
| nopp |
24 |
| Years observed |
1976-2025 |
| rms |
0.82 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.115 |
|
| ep |
0.040 |
|
| sin(ip) |
0.165 |
|
| G |
0.150 |
|
| H |
14.640 |
|
| Mass |
|
|
| D |
4.58 |
1.037 |
| pV |
0.255 |
0.0984 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
X |
| Spectral Class Score |
2.632 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 3.1153 |
0.0400 |
0.1646 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 4.58 |
1.037 |
1.037 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.255 |
0.0984 |
0.0984 |
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 |
| 14.64 |
|
|
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 |
X |
0.0784 |
0.1750 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |
| S |
X |
0.3394 |
0.1750 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |
| X |
X |
0.4386 |
0.1750 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |