2004 RY21
2004RY21, F8912, K04R21Y
All data for this body: [vot]
MPC data
| Name (number) |
2004 RY21 (158912) |
| a |
2.74199 |
| e |
0.13998 |
| i / sin(i) |
12.3339 /
0.21361
|
| q |
2.35816
|
| Q |
3.12581
|
| ω |
281.0455 |
| Node |
164.4286 |
| m |
114.4417 |
| n |
0.2171 |
| Epoch |
2460800.5 |
| nobs |
733 |
| nopp |
18 |
| Years observed |
1998-2025 |
| rms |
0.86 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.741 |
|
| ep |
0.141 |
|
| sin(ip) |
0.212 |
|
| G |
0.150 |
|
| H |
15.720 |
|
| Mass |
|
|
| D |
2.29 |
0.446 |
| pV |
0.232 |
0.0597 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
10.262 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.7414 |
0.1415 |
0.2121 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.29 |
0.446 |
0.446 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.232 |
0.0597 |
0.0597 |
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 |
| 15.72 |
|
|
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 |
|
0.750 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |
| S |
S |
0.9603 |
0.9603 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |