Tyche

00258, 1886JA, I86J00A

All data for this body: [vot]

MPC data
Name (number) Tyche (258)
Packed designation 00258
a 2.61417
e 0.20493
i / sin(i) 14.3273 / 0.24746
q 2.07845
Q 3.14988
ω 155.6706
Node 207.5430
m 263.1199
n 0.2332
Epoch 2459600.5
nobs 3544
nopp 68
Years observed 1886-2021
rms 0.47
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.616
ep 0.167
sin(ip) 0.250
Value Standard error
G 0.150
H 8.340
Mass
D 64.13 0.617
pV 0.169 0.0048
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6156 0.1666 0.2498 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
57.69 1.826 1.826 Ryan&Woodward 2010AJ....140..933R IRAS-STM
59.11 11.820 11.820 Ali-Lagoa 2018A&A...612A..85A NEATM
64.37 0.890 0.890 Usui 2011PASJ...63.1117U NEATM
64.78 1.200 1.200 Tedesco 2002AJ....123.1056T STM
65.17 12.820 12.820 Nugent 2016AJ....152...63N NEATM
65.84 2.080 2.080 Masiero 2012ApJ...759L...8M NEATM
69.02 6.900 6.900 Ali-Lagoa 2018A&A...612A..85A NEATM
71.13 3.125 3.125 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.140 0.0125 0.0125 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.162 0.0210 0.0210 Masiero 2012ApJ...759L...8M NEATM
0.168 0.0060 0.0060 Tedesco 2002AJ....123.1056T STM
0.186 0.0370 0.0370 Ali-Lagoa 2018A&A...612A..85A NEATM
0.210 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM
0.212 0.0135 0.0135 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.253 0.1010 0.1010 Ali-Lagoa 2018A&A...612A..85A NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.34 MPC-2022-01-18 MPC-2022-01-18 Phot