Hera

00103, 1868 RA, 1868RA, 1927 CV, 1927CV, 1950 CM, 1950CM, I68R00A, J27C00V, J50C00M

All data for this body: [vot]

MPC data
Name (number) Hera (103)
a 2.70455
e 0.08015
i / sin(i) 5.4215 / 0.09448
q 2.48777
Q 2.92132
ω 190.3852
Node 135.9735
m 121.3022
n 0.2216
Epoch 2460800.5
nobs 8232
nopp 82
Years observed 1871-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.702
ep 0.052
sin(ip) 0.078
G 0.150
H 7.740
Mass 8.444e+17 3.517e+17
D 72.28 0.070
pV 0.262 0.0005
Value
Rotational Period 23.700
Period quality 3
Spectral Class S
Spectral Class Score 46.590
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7021 0.0525 0.0779 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Mass data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.0168e+18 4.9734e+17 4.9734e+17 Fienga INPOP19a Ephem
6.7200e+17 Folkner 2014IPNPR.196C...1F Ephem
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
66.34 0.088 0.088 Ryan&Woodward 2010AJ....140..933R MSX-STM
77.41 2.230 2.230 Masiero 2012ApJ...759L...8M NEATM
82.43 0.117 0.117 Ryan&Woodward 2010AJ....140..933R MSX-NEATM
82.74 8.270 8.270 Ali-Lagoa 2018A&A...612A..85A NEATM
83.23 1.040 1.040 Usui 2011PASJ...63.1117U NEATM
83.91 2.090 2.090 Masiero 2014ApJ...791..121M NEATM
84.71 1.023 1.023 Masiero 2011ApJ...741...68M NEATM
91.20 5.600 5.600 Tedesco 2002AJ....123.1056T STM
91.21 4.557 4.557 Ryan&Woodward 2010AJ....140..933R IRAS-STM
91.58 4.137 4.137 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
92.01 9.200 9.200 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.183 0.0250 0.0250 Tedesco 2002AJ....123.1056T STM
0.185 0.0163 0.0163 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.193 0.0223 0.0223 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.199 0.0400 0.0400 Ali-Lagoa 2018A&A...612A..85A NEATM
0.212 0.0509 0.0509 Masiero 2011ApJ...741...68M NEATM
0.220 0.0200 0.0200 Masiero 2014ApJ...791..121M NEATM
0.224 0.0006 0.0006 Ryan&Woodward 2010AJ....140..933R MSX-NEATM
0.246 0.0490 0.0490 Ali-Lagoa 2018A&A...612A..85A NEATM
0.254 0.0320 0.0320 Masiero 2012ApJ...759L...8M NEATM
0.346 0.0009 0.0009 Ryan&Woodward 2010AJ....140..933R MSX-STM
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
7.74 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
23.74 2 Synodic Harris 1983Icar...54...59H Lightcurve
23.74 3 Synodic Pilcher 2011MPBu...38...32P Lightcurve
23.74262 2 Sidereal Wang 2019P&SS..167...17W Model
23.7427 2 Sidereal Hanus 2016A&A...586A.108H Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Bus-DeMeo VISNIR DeMeo 2009Icar..202..160D SPEC
S Bus VIS Bus 2002Icar..158..146B SPEC
S Tholen VIS Clark 1995Icar..113..387C PHOT
S 0.765 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
SSp Howell VISNIR Howell 1994JGR....9910847H PHOT