2004 GT21
2004GT21, H7589, K04G21T
All data for this body: [vot]
MPC data
| Name (number) |
2004 GT21 (177589) |
| a |
3.03223 |
| e |
0.21693 |
| i / sin(i) |
16.1121 /
0.27752
|
| q |
2.37444
|
| Q |
3.69002
|
| ω |
192.9123 |
| Node |
111.8532 |
| m |
300.3788 |
| n |
0.1867 |
| Epoch |
2460800.5 |
| nobs |
776 |
| nopp |
18 |
| Years observed |
1999-2025 |
| rms |
0.77 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
3.035 |
|
| ep |
0.217 |
|
| sin(ip) |
0.243 |
|
| G |
0.150 |
|
| H |
15.140 |
|
| Mass |
|
|
| D |
5.95 |
0.085 |
| pV |
0.041 |
0.0064 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
X |
| Spectral Class Score |
4.464 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 3.0347 |
0.2170 |
0.2428 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 5.95 |
0.085 |
0.085 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.041 |
0.0064 |
0.0064 |
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 |
| 15.14 |
|
|
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 |
| X |
|
0.744 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |