1999 TF222

1999TF222, 1997 HQ6, 1997HQ6, 91790, J97H06Q, J99TM2F

All data for this body: [vot]

MPC data
Name (number) 1999 TF222 (91790)
a 3.12002
e 0.05949
i / sin(i) 8.3616 / 0.14542
q 2.93440
Q 3.30564
ω 218.0635
Node 224.9621
m 162.0685
n 0.1788
Epoch 2460800.5
nobs 1607
nopp 21
Years observed 1997-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.117
ep 0.065
sin(ip) 0.159
G 0.150
H 14.220
Mass
D 5.97 0.289
pV 0.136 0.0341
Value
Rotational Period 0.900
Period quality
Spectral Class S
Spectral Class Score 7.248
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1167 0.0654 0.1593 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.97 0.289 0.289 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.136 0.0341 0.0341 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
14.22 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
0.92 Synodic Erasmus 2018ApJS..237...19E Lightcurve
0.92 Synodic Erasmus 2019ApJS..242...15E Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.120 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S X 0.544000 0.289000 Bus-DeMeo VIS Erasmus 2018ApJS..237...19E PHOT
S X 0.544000 0.293000 Bus-DeMeo VIS Erasmus 2019ApJS..242...15E PHOT
X X 0.3372 0.3372 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
XD 0.21 Bus VIS Carvano 2010A&A...510A..43C PHOT