1990 SW
1990SW, 08018, 1017 T-1, 1017T-1, 1989 GU4, 1989GU4, J89G04U, J90S00W, T1S1017
All data for this body: [vot]
MPC data
| Name (number) |
1990 SW (8018) |
| a |
2.34203 |
| e |
0.11675 |
| i / sin(i) |
8.4881 /
0.14760
|
| q |
2.06860
|
| Q |
2.61546
|
| ω |
85.0990 |
| Node |
205.6119 |
| m |
298.1078 |
| n |
0.2750 |
| Epoch |
2460800.5 |
| nobs |
6441 |
| nopp |
25 |
| Years observed |
1971-2025 |
| rms |
0.57 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.342 |
|
| ep |
0.085 |
|
| sin(ip) |
0.157 |
|
| G |
0.150 |
|
| H |
13.960 |
|
| Mass |
|
|
| D |
4.25 |
0.202 |
| pV |
0.355 |
0.0218 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.3423 |
0.0853 |
0.1565 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 4.25 |
0.202 |
0.202 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.355 |
0.0218 |
0.0218 |
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 |
| 13.96 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |