2001 HQ40

2001HQ40, K01H40Q, L0807

All data for this body: [vot]

MPC data
Name (number) 2001 HQ40 (210807)
a 2.55322
e 0.30822
i / sin(i) 13.3174 / 0.23034
q 1.76628
Q 3.34016
ω 142.5459
Node 155.4780
m 274.2242
n 0.2416
Epoch 2460800.5
nobs 825
nopp 16
Years observed 2001-2025
rms 0.84
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.548
ep 0.285
sin(ip) 0.222
G 0.150
H 16.070
Mass
D 4.14 0.608
pV 0.043 0.0118
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 1.914
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5480 0.2846 0.2223 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.83 1.290 1.290 Masiero 2020PSJ.....1....5M NEATM
4.23 0.690 0.690 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.043 0.0120 0.0120 Masiero 2012ApJ...759L...8M NEATM
0.053 0.0660 0.0660 Masiero 2020PSJ.....1....5M 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
16.07 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 X 0.1068 0.1560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C X 0.0130 0.1560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C X 0.0939 0.1560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.3190 0.1560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT