Bach

01814, 1931 TW1, 1931TW1, 1941 SK2, 1941SK2, 1961 TN1, 1961TN1, 1961 VF, 1961VF, J31T01W, J41S02K, J61T01N, J61V00F

All data for this body: [vot]

MPC data
Name (number) Bach (1814)
a 2.22623
e 0.13084
i / sin(i) 4.3446 / 0.07576
q 1.93495
Q 2.51750
ω 66.0332
Node 20.1804
m 7.6163
n 0.2967
Epoch 2460800.5
nobs 9844
nopp 31
Years observed 1931-2025
rms 0.44
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.226
ep 0.157
sin(ip) 0.064
G 0.150
H 12.960
Mass
D 7.49 0.190
pV 0.200 0.0396
Value
Rotational Period 7.240
Period quality 3
Spectral Class S
Spectral Class Score 4.185
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2259 0.1565 0.0639 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.27 1.360 1.360 Nugent 2016AJ....152...63N NEATM
7.52 0.192 0.192 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.180 0.0419 0.0419 Masiero 2011ApJ...741...68M NEATM
0.360 0.1200 0.1200 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
12.96 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.238 3 Synodic Carreno 2020MPBu...47....7C Lightcurve
7.23954 2 Sidereal Durech 2016A&A...587A..48D Model
7.2408 3 Synodic Pravec LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A S 0.3677 0.3210 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
LS 0.68 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S S 0.3642 0.3210 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT