1999 TM221

1999TM221, 36219, J99TM1M

All data for this body: [vot]

MPC data
Name (number) 1999 TM221 (36219)
a 3.11700
e 0.15082
i / sin(i) 6.4364 / 0.11210
q 2.64691
Q 3.58709
ω 181.9208
Node 121.2023
m 293.5809
n 0.1791
Epoch 2460800.5
nobs 2516
nopp 22
Years observed 1996-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.122
ep 0.137
sin(ip) 0.091
G 0.150
H 13.660
Mass
D 10.50 0.175
pV 0.070 0.0138
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 6.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1223 0.1367 0.0909 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.50 0.175 0.175 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.070 0.0138 0.0138 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
13.66 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
C 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT