Varunkumar

10640, 1941 UD, 1941UD, 1969 AB1, 1969AB1, 1976 GS1, 1976GS1, 1981 WA8, 1981WA8, 1981 WP8, 1981WP8, 1984 SU6, 1984SU6, 1993 KA3, 1993KA3, 1996 FY20, 1996FY20, 1998 WU19, 1998WU19, J41U00D, J69A01B, J76G01S, J81W08A, J81W08P, J84S06U, J93K03A, J96F20Y, J98W19U

All data for this body: [vot]

MPC data
Name (number) Varunkumar (10640)
a 2.22388
e 0.14558
i / sin(i) 3.6319 / 0.06335
q 1.90013
Q 2.54763
ω 285.8462
Node 164.7531
m 16.5910
n 0.2972
Epoch 2460800.5
nobs 9464
nopp 26
Years observed 1969-2025
rms 0.46
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.223
ep 0.179
sin(ip) 0.073
G 0.150
H 14.040
Mass
D 3.97 0.081
pV 0.268 0.0508
Value
Rotational Period 72.520
Period quality 2
Spectral Class S
Spectral Class Score 15.942
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2234 0.1788 0.0732 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.97 0.081 0.081 Masiero 2011ApJ...741...68M NEATM
4.23 0.840 0.840 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.240 0.0900 0.0900 Nugent 2016AJ....152...63N NEATM
0.282 0.0615 0.0615 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
14.04 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
72.526 2 Sidereal Durech 2020A&A...643A..59D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.99 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9951 0.9970 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9985 0.9970 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT