1999 JO21
1999JO21, 2000 SY192, 2000SY192, 44584, J99J21O, K00SJ2Y
All data for this body: [vot]
MPC data
| Name (number) |
1999 JO21 (44584) |
| a |
2.46949 |
| e |
0.17385 |
| i / sin(i) |
1.6029 /
0.02797
|
| q |
2.04018
|
| Q |
2.89881
|
| ω |
275.7011 |
| Node |
340.0295 |
| m |
227.9176 |
| n |
0.2540 |
| Epoch |
2460800.5 |
| nobs |
1069 |
| nopp |
22 |
| Years observed |
1992-2025 |
| rms |
0.87 |
Best values
|
Value |
Standard error |
| Parent |
Nysa (44) |
|
| |
|
|
| ap |
2.465 |
|
| ep |
0.190 |
|
| sin(ip) |
0.040 |
|
| G |
0.150 |
|
| H |
15.870 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
K |
| Spectral Class Score |
2.208 |
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 44 |
Nysa |
405 |
Nysa-Polana |
0.3300 |
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.4648 |
0.1901 |
0.0401 |
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 |
| 15.87 |
|
|
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 |
| K |
|
0.368 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |