1990 QR

1990QR, 12269, J90Q00R

All data for this body: [vot]

MPC data
Name (number) 1990 QR (12269)
a 2.61848
e 0.17414
i / sin(i) 13.5532 / 0.23435
q 2.16251
Q 3.07445
ω 124.0675
Node 168.6998
m 96.1805
n 0.2326
Epoch 2460800.5
nobs 6541
nopp 24
Years observed 1990-2025
rms 0.52
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.619
ep 0.147
sin(ip) 0.235
G 0.150
H 13.480
Mass
D 9.85 0.085
pV 0.112 0.0017
Value
Rotational Period 76.000
Period quality 1+
Spectral Class L
Spectral Class Score 12.948
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia -0.3100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6188 0.1475 0.2351 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.05 0.490 0.490 Usui 2011PASJ...63.1117U NEATM
11.31 2.260 2.260 Ali-Lagoa 2018A&A...612A..85A NEATM
3.94 1.620 1.620 Nugent 2016AJ....152...63N NEATM
8.43 2.460 2.460 Nugent 2016AJ....152...63N NEATM
9.57 3.150 3.150 Masiero 2021PSJ.....2..162M NEATM
9.74 2.470 2.470 Masiero 2021PSJ.....2..162M NEATM
9.83 0.087 0.087 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.071 0.0280 0.0280 Ali-Lagoa 2018A&A...612A..85A NEATM
0.080 0.0500 0.0500 Nugent 2016AJ....152...63N NEATM
0.091 0.0400 0.0700 Masiero 2021PSJ.....2..162M NEATM
0.101 0.0370 0.0580 Masiero 2021PSJ.....2..162M NEATM
0.112 0.0017 0.0017 Masiero 2011ApJ...741...68M NEATM
0.380 0.1100 0.1100 Nugent 2016AJ....152...63N 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
76.0 1+ Synodic Pravec LCDB Lightcurve
85.05 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
L 0.971 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
L 0.61 Bus VIS Carvano 2010A&A...510A..43C PHOT
L DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
L L 0.6504 0.6504 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT