1999 JL20
1999JL20, 2000 SH228, 2000SH228, 2000 SY236, 2000SY236, 38104, J99J20L, K00SM8H, K00SN6Y
All data for this body: [vot]
MPC data
| Name (number) |
1999 JL20 (38104) |
| a |
2.28807 |
| e |
0.12220 |
| i / sin(i) |
1.6794 /
0.02931
|
| q |
2.00846
|
| Q |
2.56768
|
| ω |
11.0375 |
| Node |
234.3775 |
| m |
162.5443 |
| n |
0.2848 |
| Epoch |
2460800.5 |
| nobs |
1686 |
| nopp |
21 |
| Years observed |
1993-2025 |
| rms |
0.80 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.288 |
|
| ep |
0.134 |
|
| sin(ip) |
0.041 |
|
| G |
0.150 |
|
| H |
15.940 |
|
| Mass |
|
|
| D |
1.76 |
0.336 |
| pV |
0.273 |
0.0509 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.2881 |
0.1343 |
0.0405 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 1.76 |
0.336 |
0.336 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.273 |
0.0509 |
0.0509 |
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 |
| 15.94 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |