Humason

02070, 1954 UJ1, 1954UJ1, 1964 TQ, 1964TQ, 1964 XM, 1964XM, 1974 QP, 1974QP, 1974 RB2, 1974RB2, J54U01J, J64T00Q, J64X00M, J74Q00P, J74R02B

All data for this body: [vot]

MPC data
Name (number) Humason (2070)
a 2.24981
e 0.15429
i / sin(i) 2.7521 / 0.04802
q 1.90270
Q 2.59693
ω 350.2041
Node 1.2099
m 359.8621
n 0.2921
Epoch 2460800.5
nobs 3864
nopp 31
Years observed 1954-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.250
ep 0.108
sin(ip) 0.047
G 0.150
H 13.480
Mass
D 4.58 0.153
pV 0.383 0.0800
Value
Rotational Period 3.188
Period quality 3
Spectral Class S
Spectral Class Score 15.984
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2499 0.1085 0.0469 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.57 0.154 0.154 Masiero 2011ApJ...741...68M NEATM
4.98 1.340 1.340 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.270 0.2000 0.2000 Nugent 2016AJ....152...63N NEATM
0.405 0.0873 0.0873 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
13.48 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.1879 3 Synodic Pravec LCDB Lightcurve
3.1879 3 Synodic Pravec LCDB Lightcurve
3.1883 3- Synodic Pravec LCDB Lightcurve
3.1883 3 Synodic Benishek 2019CBET.4599....1B Lightcurve
3.1883 3 Synodic Pravec LCDB Lightcurve
3.18851 3- Synodic Nunez 2020MPBu...47...89N Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Tholen VIS Xu 1995Icar..115....1X SPEC
S 0.664 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC