1991 OL1

1991OL1, 09858, 1977 DH1, 1977DH1, 1986 TK13, 1986TK13, 1992 WJ4, 1992WJ4, 2019 GF45, 2019GF45, J77D01H, J86T13K, J91O01L, J92W04J, K19G45F

All data for this body: [vot]

MPC data
Name (number) 1991 OL1 (9858)
a 3.22531
e 0.17875
i / sin(i) 2.7833 / 0.04856
q 2.64879
Q 3.80182
ω 246.0415
Node 113.2502
m 272.7145
n 0.1702
Epoch 2460800.5
nobs 2863
nopp 29
Years observed 1977-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.227
ep 0.148
sin(ip) 0.029
G 0.150
H 13.350
Mass
D 11.99 0.099
pV 0.078 0.0128
Value
Rotational Period 21.200
Period quality 2
Spectral Class B
Spectral Class Score 5.162
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis 0.9300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2265 0.1479 0.0285 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.58 0.172 0.172 Masiero 2011ApJ...741...68M NEATM
12.20 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
12.20 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.078 0.0128 0.0128 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
13.35 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
21.1745 2 Sidereal Durech 2023A&A...675A..24D Model
21.208 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.440 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
B B 0.4204 0.4204 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.87 Bus VIS Carvano 2010A&A...510A..43C PHOT