1987 RA1
1987RA1, 05428, 1976 JS4, 1976JS4, 1990 DV2, 1990DV2, J76J04S, J87R01A, J90D02V
All data for this body: [vot]
MPC data
| Name (number) |
1987 RA1 (5428) |
| a |
2.90275 |
| e |
0.03970 |
| i / sin(i) |
0.9361 /
0.01634
|
| q |
2.78750
|
| Q |
3.01800
|
| ω |
17.7039 |
| Node |
269.1390 |
| m |
148.1738 |
| n |
0.1993 |
| Epoch |
2460200.5 |
| nobs |
2894 |
| nopp |
28 |
| Years observed |
1976-2023 |
| rms |
0.55 |
Best values
|
Value |
Standard error |
| Parent |
Koronis (158) |
|
| |
|
|
| ap |
2.903 |
|
| ep |
0.051 |
|
| sin(ip) |
0.037 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
12.880 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
| Rotational Period |
49.653 |
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 158 |
Koronis |
605 |
Koronis |
0.4400 |
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.9029 |
0.0505 |
0.0366 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
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 |
| 12.88 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Period data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 49.65 |
|
|
Erasmus |
2020ApJS..247...13E |
Lightcurve |