1998 MD9
1998MD9, 1999 UM2, 1999UM2, 40079, J98M09D, J99U02M
All data for this body: [vot]
MPC data
| Name (number) |
1998 MD9 (40079) |
| a |
2.69507 |
| e |
0.16217 |
| i / sin(i) |
13.3182 /
0.23036
|
| q |
2.25802
|
| Q |
3.13212
|
| ω |
240.8145 |
| Node |
154.4666 |
| m |
267.0085 |
| n |
0.2228 |
| Epoch |
2460800.5 |
| nobs |
3119 |
| nopp |
22 |
| Years observed |
1998-2025 |
| rms |
0.72 |
Best values
|
Value |
Standard error |
| Parent |
Eunomia (15) |
|
| |
|
|
| ap |
2.694 |
|
| ep |
0.134 |
|
| sin(ip) |
0.224 |
|
| G |
0.150 |
|
| H |
13.880 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
3.524 |
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 15 |
Eunomia |
502 |
Eunomia |
0.5000 |
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.6940 |
0.1341 |
0.2241 |
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 |
| 13.88 |
|
|
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 |
| A |
|
0.520 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |
| S |
S |
0.5873 |
0.5873 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |