1998 UJ21
1998UJ21, 2000 AW116, 2000AW116, 44446, J98U21J, K00AB6W
All data for this body: [vot]
MPC data
| Name (number) |
1998 UJ21 (44446) |
| a |
2.75430 |
| e |
0.14018 |
| i / sin(i) |
7.3997 /
0.12879
|
| q |
2.36821
|
| Q |
3.14038
|
| ω |
102.4048 |
| Node |
237.8691 |
| m |
318.6142 |
| n |
0.2156 |
| Epoch |
2460800.5 |
| nobs |
2228 |
| nopp |
21 |
| Years observed |
1998-2025 |
| rms |
0.69 |
Best values
|
Value |
Standard error |
| Parent |
|
|
| |
|
|
| ap |
2.754 |
|
| ep |
0.101 |
|
| sin(ip) |
0.147 |
|
| G |
0.150 |
|
| H |
14.460 |
|
| Mass |
|
|
| D |
3.90 |
1.743 |
| pV |
0.243 |
0.1146 |
|
Value |
| Rotational Period |
32.074 |
| Period quality |
2 |
| Spectral Class |
S |
| Spectral Class Score |
2.343 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.7540 |
0.1012 |
0.1474 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 3.90 |
1.743 |
1.743 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.243 |
0.1146 |
0.1146 |
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 |
| 14.46 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Periods
| Value |
Quality |
Side real or Synodic |
Author |
Reference |
Method |
| 32.0748 |
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 |
| L |
|
0.250 |
|
Bus-Demeo |
VIS |
Sergeyev |
2022A&A...658A.109S |
PHOT |
| S |
S |
0.3905 |
0.3905 |
Bus-Demeo |
VIS |
Sergeyev |
2021A&A...652A..59S |
PHOT |