Aster

01218, 1932 BJ, 1932BJ, 1978 TJ5, 1978TJ5, 1978 VQ12, 1978VQ12, J32B00J, J78T05J, J78V12Q

All data for this body: [vot]

MPC data
Name (number) Aster (1218)
a 2.26345
e 0.10840
i / sin(i) 3.1574 / 0.05508
q 2.01810
Q 2.50881
ω 69.5217
Node 63.7599
m 147.1475
n 0.2894
Epoch 2460800.5
nobs 4732
nopp 36
Years observed 1932-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.263
ep 0.153
sin(ip) 0.043
G 0.150
H 13.220
Mass
D 5.83 0.040
pV 0.319 0.0333
Value
Rotational Period 3.158
Period quality 3
Spectral Class S
Spectral Class Score 6.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2630 0.1528 0.0430 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.55 0.080 0.080 Masiero 2014ApJ...791..121M NEATM
5.92 0.046 0.046 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.293 0.0599 0.0599 Masiero 2011ApJ...741...68M NEATM
0.330 0.0400 0.0400 Masiero 2014ApJ...791..121M 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
13.22 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.158091 2 Sidereal Durech 2018A&A...617A..57D Model
3.1581 3 Synodic Franco 2017MPBu...44..185F Lightcurve
3.1581 3 Synodic Sada 2018MPBu...45..122S Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT