2004 XR4
2004XR4, 2008 SZ208, 2008SZ208, K04X04R, K08SK8Z, R1905
All data for this body: [vot]
MPC data
| Name (number) |
2004 XR4 (271905) |
| a |
2.62568 |
| e |
0.13758 |
| i / sin(i) |
12.8691 /
0.22272
|
| q |
2.26443
|
| Q |
2.98693
|
| ω |
290.4561 |
| Node |
63.6390 |
| m |
349.8306 |
| n |
0.2317 |
| Epoch |
2460800.5 |
| nobs |
493 |
| nopp |
16 |
| Years observed |
2001-2025 |
| rms |
0.89 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.626 |
|
| ep |
0.094 |
|
| sin(ip) |
0.210 |
|
| G |
0.150 |
|
| H |
16.110 |
|
| Mass |
|
|
| D |
|
|
| pV |
|
|
|
Value |
| Rotational Period |
|
| Period quality |
None |
| Spectral Class |
S |
| Spectral Class Score |
1.508 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.6257 |
0.0943 |
0.2099 |
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 |
| 16.11 |
|
|
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 |
S |
0.2513 |
0.2513 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |