1998 HQ18
1998HQ18, 1995 OP8, 1995OP8, 39984, J95O08P, J98H18Q
All data for this body: [vot]
MPC data
| Name (number) |
1998 HQ18 (39984) |
| a |
2.43214 |
| e |
0.06215 |
| i / sin(i) |
4.7987 /
0.08365
|
| q |
2.28099
|
| Q |
2.58329
|
| ω |
36.4345 |
| Node |
223.5419 |
| m |
350.2997 |
| n |
0.2598 |
| Epoch |
2460800.5 |
| nobs |
1698 |
| nopp |
21 |
| Years observed |
1995-2025 |
| rms |
0.78 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.432 |
|
| ep |
0.071 |
|
| sin(ip) |
0.095 |
|
| G |
0.150 |
|
| H |
15.480 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
V |
| Spectral Class Score |
7.977 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.4321 |
0.0706 |
0.0949 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
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 |
Spectral Class Data
| Class 1 |
Class 2 |
Probability of Class 1 |
Probability of Class 2 |
Taxonomy |
Wavelength |
Author |
Reference |
Method |
| V |
|
|
|
DeMeo-Carry |
VIS |
DeMeo |
2013Icar..226..723D |
PHOT |
| V |
V |
0.9961 |
0.9961 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |