1998 YJ21
1998YJ21, 2000 EX141, 2000EX141, 74407, J98Y21J, K00EE1X
All data for this body: [vot]
MPC data
| Name (number) |
1998 YJ21 (74407) |
| a |
3.21740 |
| e |
0.08347 |
| i / sin(i) |
11.6605 /
0.20211
|
| q |
2.94885
|
| Q |
3.48595
|
| ω |
114.9879 |
| Node |
120.7727 |
| m |
354.0013 |
| n |
0.1708 |
| Epoch |
2460200.5 |
| nobs |
1278 |
| nopp |
21 |
| Years observed |
1998-2023 |
| rms |
0.69 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.224 |
|
| ep |
0.075 |
|
| sin(ip) |
0.185 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
14.230 |
|
| Mass |
|
|
| D |
8.31 |
0.447 |
| pV |
0.064 |
0.0165 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 3.2244 |
0.0749 |
0.1851 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 8.31 |
0.447 |
0.447 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.064 |
0.0165 |
0.0165 |
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 |
| 14.23 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |