1990 RR2
1990RR2, 09755, 1975 XH4, 1975XH4, 1977 FM2, 1977FM2, J75X04H, J77F02M, J90R02R
All data for this body: [vot]
MPC data
| Name (number) |
1990 RR2 (9755) |
| a |
2.45782 |
| e |
0.13766 |
| i / sin(i) |
6.6782 /
0.11629
|
| q |
2.11947
|
| Q |
2.79617
|
| ω |
174.1442 |
| Node |
193.2703 |
| m |
348.5070 |
| n |
0.2558 |
| Epoch |
2460800.5 |
| nobs |
5433 |
| nopp |
24 |
| Years observed |
1977-2025 |
| rms |
0.64 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.458 |
|
| ep |
0.108 |
|
| sin(ip) |
0.120 |
|
| G |
0.150 |
|
| H |
13.330 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
4.774 |
| Period quality |
2 |
| Spectral Class |
V |
| Spectral Class Score |
4.008 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.4578 |
0.1080 |
0.1198 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
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 |
| 13.33 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Periods
| Value |
Quality |
Side real or Synodic |
Author |
Reference |
Method |
| 4.77436 |
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 |
| V |
|
0.668 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |