1991 UC2

1991UC2, 06791, 1983 QG1, 1983QG1, J83Q01G, J91U02C

All data for this body: [vot]

MPC data
Name (number) 1991 UC2 (6791)
a 2.43657
e 0.12724
i / sin(i) 1.4526 / 0.02535
q 2.12653
Q 2.74661
ω 192.0526
Node 238.5384
m 267.4857
n 0.2591
Epoch 2460800.5
nobs 2531
nopp 28
Years observed 1982-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.436
ep 0.127
sin(ip) 0.040
G 0.150
H 15.190
Mass
D 5.41 0.115
pV 0.120 0.0180
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 21.154
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4362 0.1274 0.0400 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.22 1.070 1.070 Masiero 2021PSJ.....2..162M NEATM
4.38 1.130 1.130 Nugent 2016AJ....152...63N NEATM
4.88 1.980 1.980 Masiero 2012ApJ...759L...8M NEATM
5.44 0.116 0.116 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.070 0.0500 0.0500 Nugent 2016AJ....152...63N NEATM
0.074 0.0630 0.0630 Masiero 2012ApJ...759L...8M NEATM
0.099 0.0450 0.0820 Masiero 2021PSJ.....2..162M NEATM
0.137 0.0214 0.0214 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
15.19 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B C 0.0714 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.5194 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.5213 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.6449 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.4668 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.5070 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.5117 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.6457 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.6672 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.7273 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.1377 0.4740 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT