1998 JH4
1998JH4, 1999 RB81, 1999RB81, 1999 RY178, 1999RY178, 40027, J98J04H, J99R81B, J99RH8Y
All data for this body: [vot]
MPC data
| Name (number) |
1998 JH4 (40027) |
| a |
2.69148 |
| e |
0.04539 |
| i / sin(i) |
3.7398 /
0.06523
|
| q |
2.56931
|
| Q |
2.81365
|
| ω |
208.4836 |
| Node |
85.4368 |
| m |
208.2036 |
| n |
0.2232 |
| Epoch |
2460200.5 |
| nobs |
1351 |
| nopp |
19 |
| Years observed |
1998-2023 |
| rms |
0.75 |
Best values
|
Value |
Standard error |
| Parent |
Henan (2085) |
|
| |
|
|
| ap |
2.692 |
|
| ep |
0.050 |
|
| sin(ip) |
0.046 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
15.130 |
|
| Mass |
|
|
| D |
2.98 |
0.572 |
| pV |
0.218 |
0.0814 |
| Rotational Period |
|
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 2085 |
Henan |
532 |
Henan |
-0.1000 |
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.6923 |
0.0497 |
0.0464 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.98 |
0.572 |
0.572 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.218 |
0.0814 |
0.0814 |
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 |
| 15.13 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |