1989 TT

1989TT, 14857, 1993 SW2, 1993SW2, J89T00T, J93S02W

All data for this body: [vot]

MPC data
Name (number) 1989 TT (14857)
a 2.59448
e 0.28369
i / sin(i) 16.9775 / 0.29200
q 1.85844
Q 3.33052
ω 221.3941
Node 173.2313
m 181.1305
n 0.2358
Epoch 2460800.5
nobs 2194
nopp 25
Years observed 1989-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.595
ep 0.255
sin(ip) 0.283
G 0.150
H 14.420
Mass
D 5.03 0.079
pV 0.126 0.0320
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 9.814
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5953 0.2552 0.2827 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.89 1.010 1.010 Masiero 2020PSJ.....1....5M NEATM
4.02 0.890 0.890 Nugent 2016AJ....152...63N NEATM
5.05 0.080 0.080 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.114 0.0360 0.0360 Masiero 2012ApJ...759L...8M NEATM
0.155 0.0910 0.0910 Masiero 2020PSJ.....1....5M NEATM
0.190 0.1100 0.1100 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
14.42 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.498 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
B C 0.0903 0.5490 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.46 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.5288 0.5490 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.6202 0.5490 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D C 0.0332 0.5490 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT