2001 QS4

2001QS4, 1991 PX22, 1991PX22, A9013, J91P22X, K01Q04S

All data for this body: [vot]

MPC data
Name (number) 2001 QS4 (109013)
a 2.89710
e 0.16090
i / sin(i) 12.2596 / 0.21234
q 2.43096
Q 3.36324
ω 276.2584
Node 314.4750
m 5.3220
n 0.1999
Epoch 2460800.5
nobs 944
nopp 21
Years observed 1991-2025
rms 0.80
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.898
ep 0.184
sin(ip) 0.237
G 0.150
H 15.050
Mass
D 6.29 0.042
pV 0.041 0.0054
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8977 0.1841 0.2375 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.75 0.056 0.056 Masiero 2011ApJ...741...68M NEATM
6.73 1.640 1.640 Nugent 2016AJ....152...63N NEATM
6.96 0.062 0.062 Masiero 2011ApJ...741...68M NEATM
7.20 1.400 1.400 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.033 0.0110 0.0160 Masiero 2021PSJ.....2..162M NEATM
0.036 0.0074 0.0074 Masiero 2011ApJ...741...68M NEATM
0.040 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM
0.053 0.0098 0.0098 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
15.05 MPC-2023-12-04 MPC-2023-12-04 Phot