1999 XP21
1999XP21, 2001 CA17, 2001CA17, 43104, J99X21P, K01C17A
All data for this body: [vot]
MPC data
| Name (number) |
1999 XP21 (43104) |
| a |
2.78681 |
| e |
0.07285 |
| i / sin(i) |
9.1483 /
0.15899
|
| q |
2.58378
|
| Q |
2.98983
|
| ω |
159.4475 |
| Node |
113.1184 |
| m |
182.4201 |
| n |
0.2119 |
| Epoch |
2460200.5 |
| nobs |
2047 |
| nopp |
20 |
| Years observed |
1998-2023 |
| rms |
0.60 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.788 |
|
| ep |
0.084 |
|
| sin(ip) |
0.141 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
14.200 |
|
| Mass |
|
|
| D |
3.84 |
1.219 |
| pV |
0.362 |
0.1355 |
| Rotational Period |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.7885 |
0.0840 |
0.1409 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 3.84 |
1.219 |
1.219 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.362 |
0.1355 |
0.1355 |
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 |
| 14.20 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |