1998 HG18
1998HG18, 1999 VU147, 1999VU147, 74027, J98H18G, J99VE7U
All data for this body: [vot]
MPC data
| Name (number) |
1998 HG18 (74027) |
| a |
2.41067 |
| e |
0.18891 |
| i / sin(i) |
3.8114 /
0.06647
|
| q |
1.95527
|
| Q |
2.86608
|
| ω |
42.3146 |
| Node |
257.6145 |
| m |
202.1583 |
| n |
0.2633 |
| Epoch |
2460200.5 |
| nobs |
995 |
| nopp |
19 |
| Years observed |
1993-2023 |
| rms |
0.73 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.412 |
|
| ep |
0.166 |
|
| sin(ip) |
0.082 |
|
|
Value |
Standard error |
| G |
0.150 |
|
| H |
15.900 |
|
| Mass |
|
|
| D |
1.66 |
0.283 |
| pV |
0.403 |
0.1064 |
| Rotational Period |
|
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.4120 |
0.1659 |
0.0817 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Oct-2022 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 1.66 |
0.283 |
0.283 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.403 |
0.1064 |
0.1064 |
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 |
| 15.90 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |