Chao

03906, 1956 GE, 1956GE, 1966 EA, 1966EA, 1986 GB2, 1986GB2, 1987 KE1, 1987KE1, 1987 MD, 1987MD, J56G00E, J66E00A, J86G02B, J87K01E, J87M00D

All data for this body: [vot]

MPC data
Name (number) Chao (3906)
a 2.93393
e 0.07151
i / sin(i) 26.0556 / 0.43924
q 2.72412
Q 3.14374
ω 209.0441
Node 149.0107
m 103.5579
n 0.1961
Epoch 2460800.5
nobs 6274
nopp 30
Years observed 1956-2025
rms 0.56
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.933
ep 0.077
sin(ip) 0.428
G 0.150
H 10.640
Mass
D 47.81 0.145
pV 0.038 0.0013
Value
Rotational Period 11.890
Period quality 3
Spectral Class T
Spectral Class Score 10.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9325 0.0770 0.4279 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
38.89 3.890 3.890 Ali-Lagoa 2018A&A...612A..85A NEATM
41.18 14.480 14.480 Nugent 2016AJ....152...63N NEATM
45.33 12.050 12.050 Nugent 2016AJ....152...63N NEATM
46.25 0.180 0.180 Masiero 2014ApJ...791..121M NEATM
47.09 1.100 1.100 Tedesco 2002AJ....123.1056T STM
47.42 4.740 4.740 Ali-Lagoa 2018A&A...612A..85A NEATM
47.49 0.570 0.570 Usui 2011PASJ...63.1117U NEATM
49.11 1.849 1.849 Ryan&Woodward 2010AJ....140..933R IRAS-STM
50.36 0.340 0.340 Masiero 2012ApJ...759L...8M NEATM
51.40 2.528 2.528 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
55.39 0.527 0.527 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.032 0.0032 0.0032 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.035 0.0027 0.0027 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.038 0.0020 0.0020 Tedesco 2002AJ....123.1056T STM
0.040 0.0067 0.0067 Masiero 2011ApJ...741...68M NEATM
0.048 0.0060 0.0060 Masiero 2012ApJ...759L...8M NEATM
0.050 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.052 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.060 0.0700 0.0700 Nugent 2016AJ....152...63N NEATM
0.070 0.0600 0.0600 Nugent 2016AJ....152...63N NEATM
0.077 0.0150 0.0150 Ali-Lagoa 2018A&A...612A..85A 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
10.64 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.8864 2 Synodic Pal 2020ApJS..247...26P Lightcurve
11.892 3 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
P S 0.830000 0.150000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
T Bus VIS Lazzaro 2004Icar..172..179L SPEC
T Tholen VIS Lazzaro 2004Icar..172..179L SPEC
X 0.968 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT