1981 RQ

1981RQ, 09729, 1985 QU, 1985QU, J81R00Q, J85Q00U

All data for this body: [vot]

MPC data
Name (number) 1981 RQ (9729)
a 2.57861
e 0.18429
i / sin(i) 13.0699 / 0.22614
q 2.10339
Q 3.05384
ω 29.4676
Node 335.7655
m 187.6747
n 0.2380
Epoch 2460800.5
nobs 5650
nopp 25
Years observed 1981-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.579
ep 0.144
sin(ip) 0.231
G 0.150
H 13.480
Mass
D 5.74 0.044
pV 0.218 0.0137
Value
Rotational Period 4.200
Period quality 2
Spectral Class S
Spectral Class Score 6.646
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 502 Eunomia -0.7800 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5793 0.1443 0.2305 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.60 0.100 0.100 Masiero 2012ApJ...759L...8M NEATM
5.67 0.060 0.060 Masiero 2014ApJ...791..121M NEATM
5.99 0.083 0.083 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.197 0.0158 0.0158 Masiero 2011ApJ...741...68M NEATM
0.220 0.0600 0.0600 Masiero 2014ApJ...791..121M NEATM
0.296 0.0310 0.0310 Masiero 2012ApJ...759L...8M 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
4.20017 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
LS 0.45 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S S 0.7744 0.7744 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT