Trombka

04990, 1981 ET26, 1981ET26, J81E26T

All data for this body: [vot]

MPC data
Name (number) Trombka (4990)
a 2.23205
e 0.17876
i / sin(i) 3.8846 / 0.06775
q 1.83304
Q 2.63106
ω 278.5875
Node 353.2688
m 11.8445
n 0.2956
Epoch 2460800.5
nobs 4164
nopp 26
Years observed 1971-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.232
ep 0.159
sin(ip) 0.066
G 0.150
H 14.270
Mass
D 4.42 0.200
pV 0.243 0.0177
Value
Rotational Period 4.920
Period quality 2
Spectral Class S
Spectral Class Score 1.032
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2322 0.1594 0.0663 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.89 0.750 0.750 Nugent 2016AJ....152...63N NEATM
4.46 0.207 0.207 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.220 0.0800 0.0800 Nugent 2016AJ....152...63N NEATM
0.245 0.0181 0.0181 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
14.27 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.927 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
S 0.172 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT