1999 SK4
1999SK4, 1998 HR74, 1998HR74, 42918, J98H74R, J99S04K
All data for this body: [vot]
MPC data
| Name (number) |
1999 SK4 (42918) |
| a |
2.38040 |
| e |
0.11458 |
| i / sin(i) |
6.6944 /
0.11657
|
| q |
2.10765
|
| Q |
2.65316
|
| ω |
154.7613 |
| Node |
187.8425 |
| m |
9.1119 |
| n |
0.2684 |
| Epoch |
2460800.5 |
| nobs |
2559 |
| nopp |
22 |
| Years observed |
1994-2025 |
| rms |
0.70 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.381 |
|
| ep |
0.075 |
|
| sin(ip) |
0.121 |
|
| G |
0.150 |
|
| H |
15.050 |
|
| Mass |
|
|
| D |
2.26 |
0.271 |
| pV |
0.456 |
0.1246 |
|
Value |
| Rotational Period |
4.390 |
| Period quality |
2 |
| Spectral Class |
S |
| Spectral Class Score |
5.232 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.3806 |
0.0755 |
0.1209 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 2.26 |
0.271 |
0.271 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.456 |
0.1246 |
0.1246 |
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 |
| 15.05 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Periods
| Value |
Quality |
Side real or Synodic |
Author |
Reference |
Method |
| 4.393 |
2 |
Synodic |
Waszczak |
2015AJ....150...75W |
Lightcurve |
Spectral Class Data
| Class 1 |
Class 2 |
Probability of Class 1 |
Probability of Class 2 |
Taxonomy |
Wavelength |
Author |
Reference |
Method |
| S |
|
0.872 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |