1997 UY21
1997UY21, 2001 HH37, 2001HH37, 26982, J97U21Y, K01H37H
All data for this body: [vot]
MPC data
| Name (number) |
1997 UY21 (26982) |
| a |
2.93590 |
| e |
0.27169 |
| i / sin(i) |
11.6209 /
0.20144
|
| q |
2.13823
|
| Q |
3.73357
|
| ω |
83.4301 |
| Node |
257.3759 |
| m |
204.0041 |
| n |
0.1959 |
| Epoch |
2460800.5 |
| nobs |
3067 |
| nopp |
24 |
| Years observed |
1996-2025 |
| rms |
0.67 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.941 |
|
| ep |
0.217 |
|
| sin(ip) |
0.236 |
|
| G |
0.150 |
|
| H |
13.380 |
|
| Mass |
|
|
| D |
6.37 |
0.146 |
| pV |
0.251 |
0.0337 |
|
Value |
| Rotational Period |
6.728 |
| Period quality |
2 |
| Spectral Class |
S |
| Spectral Class Score |
2.680 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.9411 |
0.2168 |
0.2363 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 6.37 |
0.146 |
0.146 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.251 |
0.0337 |
0.0337 |
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 |
| 13.38 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Periods
| Value |
Quality |
Side real or Synodic |
Author |
Reference |
Method |
| 6.72831 |
2 |
Synodic |
Pal |
2020ApJS..247...26P |
Lightcurve |
Spectral Class Data
| Class 1 |
Class 2 |
Probability of Class 1 |
Probability of Class 2 |
Taxonomy |
Wavelength |
Author |
Reference |
Method |
| S |
|
|
|
DeMeo-Carry |
VIS |
DeMeo |
2013Icar..226..723D |
PHOT |
| S |
|
0.34 |
|
Bus |
VIS |
Carvano |
2010A&A...510A..43C |
PHOT |