1990 SR8
1990SR8, 16495, 1997 WE40, 1997WE40, J90S08R, J97W40E
All data for this body: [vot]
MPC data
| Name (number) |
1990 SR8 (16495) |
| a |
2.22001 |
| e |
0.06950 |
| i / sin(i) |
4.8884 /
0.08522
|
| q |
2.06572
|
| Q |
2.37430
|
| ω |
4.5033 |
| Node |
79.4363 |
| m |
271.7113 |
| n |
0.2980 |
| Epoch |
2460200.5 |
| nobs |
1681 |
| nopp |
20 |
| Years observed |
1976-2023 |
| rms |
0.68 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.220 |
|
| ep |
0.103 |
|
| sin(ip) |
0.076 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
15.550 |
|
| Mass |
|
|
| D |
2.13 |
0.619 |
| pV |
0.325 |
0.1704 |
| Rotational Period |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.2202 |
0.1032 |
0.0763 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.13 |
0.619 |
0.619 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.325 |
0.1704 |
0.1704 |
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 |
| 15.55 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |