1991 SD1
1991SD1, 19181, 1998 GN4, 1998GN4, J91S01D, J98G04N
All data for this body: [vot]
MPC data
| Name (number) |
1991 SD1 (19181) |
| a |
2.55242 |
| e |
0.12982 |
| i / sin(i) |
13.8028 /
0.23858
|
| q |
2.22107
|
| Q |
2.88377
|
| ω |
91.7166 |
| Node |
132.1904 |
| m |
56.8590 |
| n |
0.2417 |
| Epoch |
2460200.5 |
| nobs |
2477 |
| nopp |
21 |
| Years observed |
1991-2023 |
| rms |
0.61 |
Best values
|
Value |
Standard error |
| Parent |
Eunomia (15) |
|
| |
|
|
| ap |
2.552 |
|
| ep |
0.156 |
|
| sin(ip) |
0.231 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
14.010 |
|
| Mass |
|
|
| D |
4.64 |
0.073 |
| pV |
0.248 |
0.0413 |
| Rotational Period |
5.128 |
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 15 |
Eunomia |
502 |
Eunomia |
-0.8100 |
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.5524 |
0.1560 |
0.2313 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 4.64 |
0.073 |
0.073 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.248 |
0.0413 |
0.0413 |
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 |
| 14.01 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |