1999 TF257
1999TF257, 1998 HQ154, 1998HQ154, 70656, J98HF4Q, J99TP7F
All data for this body: [vot]
MPC data
| Name (number) |
1999 TF257 (70656) |
| a |
2.46601 |
| e |
0.13714 |
| i / sin(i) |
5.1169 /
0.08919
|
| q |
2.12781
|
| Q |
2.80421
|
| ω |
311.8553 |
| Node |
304.5789 |
| m |
302.1311 |
| n |
0.2545 |
| Epoch |
2460800.5 |
| nobs |
1245 |
| nopp |
19 |
| Years observed |
1998-2025 |
| rms |
0.83 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.466 |
|
| ep |
0.147 |
|
| sin(ip) |
0.104 |
|
| G |
0.150 |
|
| H |
15.720 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
5.658 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.4659 |
0.1467 |
0.1044 |
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 |
| 15.72 |
|
|
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 |
|
0.943 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |