2004 YQ21
2004YQ21, J8584, K04Y21Q
All data for this body: [vot]
MPC data
| Name (number) |
2004 YQ21 (198584) |
| a |
3.13365 |
| e |
0.01862 |
| i / sin(i) |
10.2262 /
0.17754
|
| q |
3.07531
|
| Q |
3.19199
|
| ω |
42.6373 |
| Node |
121.8285 |
| m |
198.4629 |
| n |
0.1777 |
| Epoch |
2460800.5 |
| nobs |
609 |
| nopp |
19 |
| Years observed |
2000-2025 |
| rms |
0.92 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.136 |
|
| ep |
0.038 |
|
| sin(ip) |
0.159 |
|
| G |
0.150 |
|
| H |
15.210 |
|
| Mass |
|
|
| D |
5.31 |
0.350 |
| pV |
0.063 |
0.0176 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
C |
| Spectral Class Score |
5.472 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 3.1364 |
0.0385 |
0.1594 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 5.31 |
0.350 |
0.350 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.063 |
0.0176 |
0.0176 |
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 |
| 15.21 |
|
|
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 |
| C |
|
0.912 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |