1991 PQ12

1991PQ12, 07943, 1995 DF1, 1995DF1, J91P12Q, J95D01F

All data for this body: [vot]

MPC data
Name (number) 1991 PQ12 (7943)
a 3.14705
e 0.12146
i / sin(i) 1.0894 / 0.01901
q 2.76481
Q 3.52929
ω 84.2952
Node 173.3661
m 75.8391
n 0.1765
Epoch 2460800.5
nobs 3593
nopp 28
Years observed 1991-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.152
ep 0.131
sin(ip) 0.024
G 0.150
H 12.910
Mass
D 11.30 0.347
pV 0.081 0.0141
Value
Rotational Period 2.000
Period quality
Spectral Class C
Spectral Class Score 11.034
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis 0.2100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1519 0.1313 0.0242 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.85 0.371 0.371 Masiero 2011ApJ...741...68M NEATM
12.60 2.520 2.520 Ali-Lagoa 2018A&A...612A..85A NEATM
13.91 5.010 5.010 Masiero 2020PSJ.....1....5M NEATM
14.58 1.160 1.160 Usui 2011PASJ...63.1117U NEATM
17.11 3.420 3.420 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.049 0.0200 0.0200 Ali-Lagoa 2018A&A...612A..85A NEATM
0.052 0.0620 0.0620 Masiero 2020PSJ.....1....5M NEATM
0.090 0.0360 0.0360 Ali-Lagoa 2018A&A...612A..85A NEATM
0.137 0.0260 0.0260 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.91 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.0 Synodic Erasmus 2018ApJS..237...19E Lightcurve
2.0 Synodic Erasmus 2019ApJS..242...15E Lightcurve
362.4 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.918000 Bus-DeMeo VIS Erasmus 2018ApJS..237...19E PHOT
C 0.921000 Bus-DeMeo VIS Erasmus 2019ApJS..242...15E PHOT