1977 TD1

1977TD1, 09149, 1990 UH3, 1990UH3, J77T01D, J90U03H

All data for this body: [vot]

MPC data
Name (number) 1977 TD1 (9149)
a 2.63776
e 0.16510
i / sin(i) 12.6210 / 0.21850
q 2.20226
Q 3.07326
ω 195.1749
Node 208.4369
m 21.5705
n 0.2301
Epoch 2460800.5
nobs 5387
nopp 24
Years observed 1977-2025
rms 0.51
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.638
ep 0.151
sin(ip) 0.222
G 0.150
H 13.540
Mass
D 7.13 0.190
pV 0.184 0.0235
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 6.046
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia -0.0700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6376 0.1507 0.2217 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.33 0.790 0.790 Masiero 2012ApJ...759L...8M NEATM
7.18 0.196 0.196 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.146 0.0460 0.0460 Masiero 2012ApJ...759L...8M NEATM
0.197 0.0274 0.0274 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
13.54 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
S 0.841 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT