1998 HR8
1998HR8, 1981 EC47, 1981EC47, 2000 SY325, 2000SY325, 58823, J81E47C, J98H08R, K00SW5Y
All data for this body: [vot]
MPC data
| Name (number) |
1998 HR8 (58823) |
| a |
2.59859 |
| e |
0.22126 |
| i / sin(i) |
4.8128 /
0.08390
|
| q |
2.02363
|
| Q |
3.17356
|
| ω |
330.1640 |
| Node |
150.4055 |
| m |
222.3274 |
| n |
0.2353 |
| Epoch |
2460800.5 |
| nobs |
714 |
| nopp |
19 |
| Years observed |
1981-2025 |
| rms |
0.86 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.601 |
|
| ep |
0.249 |
|
| sin(ip) |
0.072 |
|
| G |
0.150 |
|
| H |
16.440 |
|
| Mass |
|
|
| D |
1.47 |
0.158 |
| pV |
0.248 |
0.0675 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
None |
| Spectral Class Score |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.6014 |
0.2488 |
0.0724 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 1.47 |
0.158 |
0.158 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.248 |
0.0675 |
0.0675 |
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 |
| 16.44 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |