1999 TJ31
1999TJ31, 1990 QA13, 1990QA13, 2000 YP62, 2000YP62, 42939, J90Q13A, J99T31J, K00Y62P
All data for this body: [vot]
MPC data
| Name (number) |
1999 TJ31 (42939) |
| a |
2.66405 |
| e |
0.02455 |
| i / sin(i) |
1.2398 /
0.02164
|
| q |
2.59864
|
| Q |
2.72947
|
| ω |
210.8681 |
| Node |
339.3942 |
| m |
142.3761 |
| n |
0.2267 |
| Epoch |
2460800.5 |
| nobs |
2201 |
| nopp |
23 |
| Years observed |
1990-2025 |
| rms |
0.72 |
Best values
|
Value |
Standard error |
| Parent |
Henan (2085) |
|
| |
|
|
| ap |
2.664 |
|
| ep |
0.066 |
|
| sin(ip) |
0.035 |
|
| G |
0.150 |
|
| H |
14.650 |
|
| Mass |
|
|
| D |
3.07 |
0.332 |
| pV |
0.326 |
0.0425 |
|
Value |
| Rotational Period |
4.900 |
| Period quality |
2 |
| Spectral Class |
None |
| Spectral Class Score |
|
Family data
| Parent |
Parent name |
Family ID |
Family name |
Cj |
Author |
Reference |
Method |
| 2085 |
Henan |
532 |
Henan |
-0.6400 |
Nesvorny |
doi.org/10.26033/6cg5-pt13 |
HCM-2020-08-14 |
Proper elements data
| ap |
ep |
sin(ip) |
Author |
Reference |
Method |
| 2.6645 |
0.0660 |
0.0355 |
Novakovic_Radovic_Todovic |
2003A&A...403.1165K |
Numeric-Nov-2024 |
Diameter data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 3.07 |
0.332 |
0.332 |
Masiero |
2011ApJ...741...68M |
NEATM |
Albedo data
| Value |
Uncertainty up |
Uncertainty down |
Author |
Reference |
Method |
| 0.326 |
0.0425 |
0.0425 |
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 |
| 14.65 |
|
|
MPC-2023-12-04 |
MPC-2023-12-04 |
Phot |
Periods
| Value |
Quality |
Side real or Synodic |
Author |
Reference |
Method |
| 4.97 |
2 |
Synodic |
Chang |
2015ApJS..219...27C |
Lightcurve |