1999 XJ8
1999XJ8, 1990 US8, 1990US8, 45040, J90U08S, J99X08J
All data for this body: [vot]
MPC data
| Name (number) |
1999 XJ8 (45040) |
| a |
2.60090 |
| e |
0.14209 |
| i / sin(i) |
8.0724 /
0.14042
|
| q |
2.23134
|
| Q |
2.97046
|
| ω |
193.4567 |
| Node |
93.0491 |
| m |
34.3413 |
| n |
0.2350 |
| Epoch |
2460200.5 |
| nobs |
2344 |
| nopp |
22 |
| Years observed |
1990-2023 |
| rms |
0.60 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.602 |
|
| ep |
0.132 |
|
| sin(ip) |
0.120 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
14.120 |
|
| Mass |
|
|
| D |
4.28 |
0.111 |
| pV |
0.319 |
0.0561 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.6020 |
0.1317 |
0.1196 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 4.28 |
0.111 |
0.111 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.319 |
0.0561 |
0.0561 |
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 |
| 14.12 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |