1998 HE42
1998HE42, 2000 SM85, 2000SM85, 37951, J98H42E, K00S85M
All data for this body: [vot]
MPC data
| Name (number) |
1998 HE42 (37951) |
| a |
2.59540 |
| e |
0.18599 |
| i / sin(i) |
4.8936 /
0.08531
|
| q |
2.11269
|
| Q |
3.07812
|
| ω |
347.9943 |
| Node |
150.1994 |
| m |
216.4705 |
| n |
0.2357 |
| Epoch |
2460800.5 |
| nobs |
1810 |
| nopp |
21 |
| Years observed |
1992-2025 |
| rms |
0.73 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.597 |
|
| ep |
0.212 |
|
| sin(ip) |
0.074 |
|
| G |
0.150 |
|
| H |
15.150 |
|
| Mass |
|
|
| D |
3.06 |
0.179 |
| pV |
0.227 |
0.0401 |
|
Value |
| Rotational Period |
8.710 |
| Period quality |
2 |
| Spectral Class |
S |
| Spectral Class Score |
5.943 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.5974 |
0.2120 |
0.0743 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 3.06 |
0.179 |
0.179 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.227 |
0.0401 |
0.0401 |
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 |
| 15.15 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Periods
| Value |
Quality |
Side real or Synodic |
Author |
Reference |
Method |
| 8.719 |
2 |
Synodic |
Waszczak |
2015AJ....150...75W |
Lightcurve |
Spectral Class Data
| Class 1 |
Class 2 |
Probability of Class 1 |
Probability of Class 2 |
Taxonomy |
Wavelength |
Author |
Reference |
Method |
| S |
|
0.29 |
|
Bus |
VIS |
Carvano |
2010A&A...510A..43C |
PHOT |
| S |
S |
0.8939 |
0.8939 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |