1990 QB2

1990QB2, 09948, 1979 SJ6, 1979SJ6, 1990 SQ26, 1990SQ26, J79S06J, J90Q02B, J90S26Q

All data for this body: [vot]

MPC data
Name (number) 1990 QB2 (9948)
a 2.38354
e 0.21786
i / sin(i) 2.0970 / 0.03659
q 1.86427
Q 2.90281
ω 151.7752
Node 171.4329
m 163.4103
n 0.2678
Epoch 2460800.5
nobs 3008
nopp 25
Years observed 1979-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.384
ep 0.181
sin(ip) 0.038
G 0.150
H 14.460
Mass
D 3.35 0.717
pV 0.250 0.0931
Value
Rotational Period 3.500
Period quality 3
Spectral Class S
Spectral Class Score 14.448
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
135 Hertha 0 Hertha Novakovic 2019EPSC...13.1671N HCM
44 Nysa 405 Nysa-Polana -0.5800 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3840 0.1815 0.0385 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.35 0.717 0.717 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.250 0.0931 0.0931 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
14.46 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.523 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
3.524769 2 Sidereal Durech 2018A&A...617A..57D Model
3.5257 3 Synodic Higgins 2006MPBu...33...64H Lightcurve
3.53 2 Synodic Chang 2015ApJS..219...27C Lightcurve
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 0.39 Bus VIS Carvano 2010A&A...510A..43C PHOT
S 0.907 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S Ad None None Movis NIR Popescu 2018A&A...617A..12P PHOT
S S 0.8710 0.8710 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT