1999 SP8
1999SP8, 2000 WQ87, 2000WQ87, 42922, J99S08P, K00W87Q
All data for this body: [vot]
MPC data
| Name (number) |
1999 SP8 (42922) |
| a |
2.80785 |
| e |
0.14406 |
| i / sin(i) |
10.3080 /
0.17894
|
| q |
2.40335
|
| Q |
3.21234
|
| ω |
345.2805 |
| Node |
81.8812 |
| m |
329.6643 |
| n |
0.2095 |
| Epoch |
2460200.5 |
| nobs |
4606 |
| nopp |
22 |
| Years observed |
1955-2023 |
| rms |
0.44 |
Best values
|
Value |
Standard error |
| Parent |
Gefion (1272) |
|
| |
|
|
| ap |
2.806 |
|
| ep |
0.135 |
|
| sin(ip) |
0.157 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
13.400 |
|
| Mass |
|
|
| D |
6.44 |
0.067 |
| pV |
0.355 |
0.0528 |
| Rotational Period |
7.339 |
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 1272 |
Gefion |
516 |
Gefion |
0.7200 |
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.8062 |
0.1347 |
0.1573 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 6.44 |
0.067 |
0.067 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.355 |
0.0528 |
0.0528 |
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 |
| 13.40 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |