Halperin
1991 NE9, 1991NE9, 1996 WN2, 1996WN2, 1998 FZ40, 1998FZ40, 20274, J91N09E, J96W02N, J98F40Z
All data for this body: [vot]
MPC data
| Name (number) |
Halperin (20274) |
| a |
2.48566 |
| e |
0.09567 |
| i / sin(i) |
0.1422 /
0.00248
|
| q |
2.24786
|
| Q |
2.72346
|
| ω |
43.7956 |
| Node |
249.4586 |
| m |
77.7087 |
| n |
0.2515 |
| Epoch |
2460200.5 |
| nobs |
1729 |
| nopp |
23 |
| Years observed |
1991-2023 |
| rms |
0.67 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.483 |
|
| ep |
0.089 |
|
| sin(ip) |
0.018 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
15.480 |
|
| Mass |
|
|
| D |
2.12 |
0.388 |
| pV |
0.188 |
0.0426 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.4832 |
0.0895 |
0.0176 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.12 |
0.388 |
0.388 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.188 |
0.0426 |
0.0426 |
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 |
| 15.48 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |