1999 NG21
1999NG21, 2000 XM51, 2000XM51, 40361, J99N21G, K00X51M
All data for this body: [vot]
MPC data
| Name (number) |
1999 NG21 (40361) |
| a |
2.68071 |
| e |
0.16272 |
| i / sin(i) |
13.1324 /
0.22720
|
| q |
2.24451
|
| Q |
3.11691
|
| ω |
58.5651 |
| Node |
314.4334 |
| m |
117.8194 |
| n |
0.2246 |
| Epoch |
2460200.5 |
| nobs |
1024 |
| nopp |
18 |
| Years observed |
1991-2023 |
| rms |
0.67 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.682 |
|
| ep |
0.119 |
|
| sin(ip) |
0.243 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
14.980 |
|
| Mass |
|
|
| D |
3.15 |
0.469 |
| pV |
0.215 |
0.0982 |
| Rotational Period |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.6816 |
0.1194 |
0.2431 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 3.15 |
0.469 |
0.469 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.215 |
0.0982 |
0.0982 |
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 |
| 14.98 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |