1999 RL221
1999RL221, 1999 ST19, 1999ST19, 96848, J99RM1L, J99S19T
All data for this body: [vot]
MPC data
| Name (number) |
1999 RL221 (96848) |
| a |
2.58550 |
| e |
0.24203 |
| i / sin(i) |
10.2824 /
0.17850
|
| q |
1.95973
|
| Q |
3.21128
|
| ω |
184.6200 |
| Node |
147.4434 |
| m |
75.2341 |
| n |
0.2371 |
| Epoch |
2460800.5 |
| nobs |
1933 |
| nopp |
18 |
| Years observed |
1999-2025 |
| rms |
0.75 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.584 |
|
| ep |
0.213 |
|
| sin(ip) |
0.159 |
|
| G |
0.150 |
|
| H |
15.070 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
6.300 |
| Period quality |
2 |
| Spectral Class |
S |
| Spectral Class Score |
7.180 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.5842 |
0.2129 |
0.1588 |
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 |
| 15.07 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Periods
| Value |
Quality |
Side real or Synodic |
Author |
Reference |
Method |
| 6.36 |
2 |
Synodic |
Chang |
2015ApJS..219...27C |
Lightcurve |
Spectral Class Data
| Class 1 |
Class 2 |
Probability of Class 1 |
Probability of Class 2 |
Taxonomy |
Wavelength |
Author |
Reference |
Method |
| S |
|
0.885 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |
| S |
S |
0.3116 |
0.3116 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |