2001 TD21

2001TD21, H9151, K01T21D

All data for this body: [vot]

MPC data
Name (number) 2001 TD21 (179151)
a 2.76058
e 0.22101
i / sin(i) 13.6819 / 0.23653
q 2.15047
Q 3.37070
ω 334.0647
Node 355.7995
m 98.9624
n 0.2149
Epoch 2460800.5
nobs 632
nopp 16
Years observed 2001-2025
rms 0.86
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.757
ep 0.199
sin(ip) 0.232
G 0.150
H 15.680
Mass
D 2.28 0.594
pV 0.179 0.1134
Value
Rotational Period 17.670
Period quality 2
Spectral Class D
Spectral Class Score 2.120
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7570 0.1991 0.2319 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.28 0.594 0.594 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.179 0.1134 0.1134 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
15.68 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
17.673 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
D D 0.1537 0.1800 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.1996 0.1800 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT