Biela

02281, 1971 UQ1, 1971UQ1, 1974 SU, 1974SU, J71U01Q, J74S00U

All data for this body: [vot]

MPC data
Name (number) Biela (2281)
a 2.18795
e 0.14538
i / sin(i) 1.4875 / 0.02596
q 1.86986
Q 2.50604
ω 109.3950
Node 206.5161
m 261.0069
n 0.3045
Epoch 2460800.5
nobs 4653
nopp 31
Years observed 1955-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.188
ep 0.086
sin(ip) 0.030
G 0.150
H 13.510
Mass
D 6.05 0.180
pV 0.231 0.0370
Value
Rotational Period 54.000
Period quality 2-
Spectral Class S
Spectral Class Score 12.447
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1883 0.0856 0.0297 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.05 0.180 0.180 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.231 0.0370 0.0370 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
13.51 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.929 2- Synodic Waszczak 2015AJ....150...75W Lightcurve
54.0 2- Synodic Skiff 2019MPBu...46..458S Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
LS 0.35 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S S 0.7825 0.8980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9586 0.8980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT