1998 GM9
1998GM9, 39970, J98G09M
All data for this body: [vot]
MPC data
| Name (number) |
1998 GM9 (39970) |
| a |
2.44441 |
| e |
0.06725 |
| i / sin(i) |
19.9674 /
0.34149
|
| q |
2.28002
|
| Q |
2.60881
|
| ω |
109.4397 |
| Node |
68.2734 |
| m |
50.7775 |
| n |
0.2579 |
| Epoch |
2460800.5 |
| nobs |
1945 |
| nopp |
21 |
| Years observed |
1980-2025 |
| rms |
0.72 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.444 |
|
| ep |
0.067 |
|
| sin(ip) |
0.332 |
|
| G |
0.150 |
|
| H |
15.120 |
|
| Mass |
|
|
| D |
4.21 |
0.396 |
| pV |
0.120 |
0.0354 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
5.928 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.4439 |
0.0673 |
0.3322 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 4.21 |
0.396 |
0.396 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.120 |
0.0354 |
0.0354 |
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 |
| 15.12 |
|
|
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 |
| S |
|
0.988 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |