1999 XD180
1999XD180, 1998 SJ160, 1998SJ160, 49936, J98SG0J, J99XI0D
All data for this body: [vot]
MPC data
| Name (number) |
1999 XD180 (49936) |
| a |
2.35812 |
| e |
0.14632 |
| i / sin(i) |
9.1455 /
0.15894
|
| q |
2.01307
|
| Q |
2.70317
|
| ω |
146.6509 |
| Node |
50.9729 |
| m |
300.8862 |
| n |
0.2722 |
| Epoch |
2460800.5 |
| nobs |
2450 |
| nopp |
20 |
| Years observed |
1991-2025 |
| rms |
0.72 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.358 |
|
| ep |
0.188 |
|
| sin(ip) |
0.149 |
|
| G |
0.150 |
|
| H |
14.840 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
4.720 |
| Period quality |
2 |
| Spectral Class |
S |
| Spectral Class Score |
14.532 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.3576 |
0.1883 |
0.1486 |
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 |
| 14.84 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Periods
| Value |
Quality |
Side real or Synodic |
Author |
Reference |
Method |
| 4.72042 |
2 |
Sidereal |
Durech |
2023A&A...675A..24D |
Model |