1999 XW9
1999XW9, 1991 RZ20, 1991RZ20, 49783, J91R20Z, J99X09W
All data for this body: [vot]
MPC data
| Name (number) |
1999 XW9 (49783) |
| a |
2.33444 |
| e |
0.22784 |
| i / sin(i) |
3.1050 /
0.05417
|
| q |
1.80257
|
| Q |
2.86631
|
| ω |
232.1194 |
| Node |
84.3768 |
| m |
11.9040 |
| n |
0.2763 |
| Epoch |
2460200.5 |
| nobs |
1069 |
| nopp |
19 |
| Years observed |
1991-2023 |
| rms |
0.69 |
Best values
|
Value |
Standard error |
| Parent |
Nysa (44) |
|
| |
|
|
| ap |
2.334 |
|
| ep |
0.192 |
|
| sin(ip) |
0.038 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
16.080 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 44 |
Nysa |
405 |
Nysa-Polana |
-0.6000 |
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.3344 |
0.1924 |
0.0379 |
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 |
| 16.08 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |