1998 RY21
1998RY21, 2005 MP7, 2005MP7, H5750, J98R21Y, K05M07P
All data for this body: [vot]
MPC data
| Name (number) |
1998 RY21 (175750) |
| a |
2.42116 |
| e |
0.18036 |
| i / sin(i) |
0.8988 /
0.01569
|
| q |
1.98447
|
| Q |
2.85784
|
| ω |
76.8750 |
| Node |
204.8085 |
| m |
80.9691 |
| n |
0.2616 |
| Epoch |
2460800.5 |
| nobs |
418 |
| nopp |
18 |
| Years observed |
1998-2024 |
| rms |
0.96 |
Best values
|
Value |
Standard error |
| Parent |
Massalia (20) |
|
| |
|
|
| ap |
2.422 |
|
| ep |
0.172 |
|
| sin(ip) |
0.026 |
|
| G |
0.150 |
|
| H |
17.090 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
C |
| Spectral Class Score |
4.770 |
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 20 |
Massalia |
404 |
Massalia |
0.2200 |
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.4219 |
0.1716 |
0.0264 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
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 |
| 17.09 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |