1991 RY8
1991RY8, 13532, 1991 SK1, 1991SK1, 1997 HH11, 1997HH11, J91R08Y, J91S01K, J97H11H
All data for this body: [vot]
MPC data
| Name (number) |
1991 RY8 (13532) |
| a |
2.29226 |
| e |
0.13800 |
| i / sin(i) |
3.7467 /
0.06535
|
| q |
1.97593
|
| Q |
2.60859
|
| ω |
10.3887 |
| Node |
8.3240 |
| m |
236.7555 |
| n |
0.2840 |
| Epoch |
2460800.5 |
| nobs |
3051 |
| nopp |
22 |
| Years observed |
1991-2025 |
| rms |
0.72 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.292 |
|
| ep |
0.106 |
|
| sin(ip) |
0.061 |
|
| G |
0.150 |
|
| H |
14.590 |
|
| Mass |
|
|
| D |
2.98 |
0.489 |
| pV |
0.378 |
0.1261 |
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
Q |
| Spectral Class Score |
2.886 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.2920 |
0.1063 |
0.0609 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.98 |
0.489 |
0.489 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.378 |
0.1261 |
0.1261 |
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 |
| 14.59 |
|
|
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 |
| Q |
|
0.481 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |
| S |
S |
None |
None |
Movis |
NIR |
Popescu |
2018A&A...617A..12P |
PHOT |