1989 TM1

1989TM1, 09942, J89T01M

All data for this body: [vot]

MPC data
Name (number) 1989 TM1 (9942)
a 2.59642
e 0.16641
i / sin(i) 9.9383 / 0.17259
q 2.16436
Q 3.02849
ω 37.8957
Node 21.7198
m 158.4866
n 0.2356
Epoch 2460800.5
nobs 4889
nopp 22
Years observed 1989-2025
rms 0.61
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.596
ep 0.154
sin(ip) 0.168
G 0.150
H 13.740
Mass
D 4.12 0.450
pV 0.454 0.1060
Value
Rotational Period 22.632
Period quality 1
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5957 0.1543 0.1676 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.12 0.450 0.450 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.454 0.1060 0.1060 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
13.74 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
22.6325 1 Synodic Pal 2020ApJS..247...26P Lightcurve
3.071 1 Synodic Waszczak 2015AJ....150...75W Lightcurve