1991 UB4

1991UB4, 09352, 1997 AH19, 1997AH19, J91U04B, J97A19H

All data for this body: [vot]

MPC data
Name (number) 1991 UB4 (9352)
a 2.65029
e 0.12727
i / sin(i) 3.7470 / 0.06535
q 2.31299
Q 2.98758
ω 325.6262
Node 189.2693
m 35.9213
n 0.2284
Epoch 2460200.5
nobs 5151
nopp 23
Years observed 1989-2023
rms 0.45
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.651
ep 0.165
sin(ip) 0.070
Value Standard error
G 0.150
H 13.380
Mass
D 11.49 0.032
pV 0.075 0.0056
Rotational Period
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6509 0.1648 0.0700 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.54 0.250 0.250 Nugent 2016AJ....152...63N NEATM
11.37 0.040 0.040 Masiero 2014ApJ...791..121M NEATM
11.90 0.055 0.055 Masiero 2011ApJ...741...68M NEATM
9.47 0.210 0.210 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.070 0.0100 0.0100 Nugent 2016AJ....152...63N NEATM
0.072 0.0102 0.0102 Masiero 2011ApJ...741...68M NEATM
0.080 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.090 0.0200 0.0200 Nugent 2016AJ....152...63N 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
13.38 MPC-2023-12-04 MPC-2023-12-04 Phot