Hertha

00135, 1874 DA, 1874DA, I74D00A

All data for this body: [vot]

MPC data
Name (number) Hertha (135)
a 2.42690
e 0.20831
i / sin(i) 2.3033 / 0.04019
q 1.92137
Q 2.93244
ω 340.3351
Node 343.4349
m 191.0013
n 0.2607
Epoch 2460800.5
nobs 7887
nopp 73
Years observed 1885-2025
rms 0.59
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.429
ep 0.174
sin(ip) 0.047
G 0.150
H 8.320
Mass 9.247e+17 2.483e+17
D 73.98 0.630
pV 0.155 0.0047
Value
Rotational Period 8.400
Period quality 3
Spectral Class Xk
Spectral Class Score 52.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
135 Hertha -1 Hertha -1.0000 Nesvorny 2024ApJS..274...25N HCM-2024
135 Hertha 0 Hertha Novakovic 2019EPSC...13.1671N HCM
44 Nysa 405 Nysa-Polana 1.3600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4285 0.1745 0.0466 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Mass data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
9.6400e+17 4.3000e+17 4.3000e+17 Fienga 2020MNRAS.492..589F Ephem
1.1700e+18 Folkner 2009IPNPR.178C...1F Ephem
6.4000e+17 Folkner 2014IPNPR.196C...1F Ephem
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
67.29 1.886 1.886 Ryan&Woodward 2010AJ....140..933R IRAS-STM
67.38 15.170 15.170 Nugent 2016AJ....152...63N NEATM
71.04 2.650 2.650 Masiero 2014ApJ...791..121M NEATM
72.27 7.230 7.230 Ali-Lagoa 2018A&A...612A..85A NEATM
72.78 0.870 0.870 Usui 2011PASJ...63.1117U NEATM
73.77 3.358 3.358 Ryan&Woodward 2010AJ....140..933R MSX-STM
74.75 18.720 18.720 Nugent 2016AJ....152...63N NEATM
76.92 3.869 3.869 Ryan&Woodward 2010AJ....140..933R MSX-NEATM
77.00 7.833 7.833 Masiero 2011ApJ...741...68M NEATM
77.14 7.710 7.710 Ali-Lagoa 2018A&A...612A..85A NEATM
79.24 2.000 2.000 Tedesco 2002AJ....123.1056T STM
80.00 2.000 2.000 Hanus 2017A&A...601A.114H AO/OCCULT/LC
83.00 nan nan Cellino 2003Icar..162..278C Speckle_Interf.
92.13 5.553 5.553 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.109 0.0143 0.0143 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.144 0.0070 0.0070 Tedesco 2002AJ....123.1056T STM
0.152 0.0500 0.0500 Masiero 2011ApJ...741...68M NEATM
0.155 0.0144 0.0144 Ryan&Woodward 2010AJ....140..933R MSX-NEATM
0.166 0.0330 0.0330 Ali-Lagoa 2018A&A...612A..85A NEATM
0.168 0.0163 0.0163 Ryan&Woodward 2010AJ....140..933R MSX-STM
0.180 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM
0.189 0.0380 0.0380 Ali-Lagoa 2018A&A...612A..85A NEATM
0.200 0.0113 0.0113 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.210 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM
0.230 0.1400 0.1400 Nugent 2016AJ....152...63N 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
8.32 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
10.3 0 Synodic Lagerkvist 1981A&AS...44..345L Lightcurve
16.805 0 Synodic Harris 1980Icar...43...20H Lightcurve
8.3476 2 Sidereal Michalowski 1993Icar..106..563M Model
8.398 3 Synodic Harris 1992Icar...95..115H Lightcurve
8.4 3 Synodic Harris 1983Icar...54...59H Lightcurve
8.4 3 Synodic Lagerkvist 1986acm..proc...67L Lightcurve
8.4006 2 Sidereal Durech LCDB Model
8.4006 2 Sidereal Hanus 2017A&A...601A.114H Model
8.40061 2 Sidereal Torppa 2003Icar..164..346T Model
8.403 2+ Synodic Carbognani 2019P&SS..169...15C Lightcurve
8.403 3 Synodic Behrend LCDB Lightcurve
8.403 3 Synodic Garceran LCDB Lightcurve
8.40571 2 Sidereal Lagerkvist 1995A&AS..113..115L Model
8.406 3 Synodic Warner 2009MPBu...36...38W Lightcurve
8.409 3 Synodic Behrend LCDB Lightcurve
8.41 2 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
M 0.870000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
M 0.980000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
M 0.980000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
M 0.990000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
M 0.990000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
M T Howell VISNIR Howell 1994JGR....9910847H PHOT
X 0.776 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
Xk Bus-DeMeo VISNIR Fornasier 2010Icar..210..655F SPEC
Xk Bus-DeMeo VISNIR Neeley 2014Icar..238...37N SPEC
Xk Bus VIS Bus 2002Icar..158..146B SPEC
Xk Bus VIS Fornasier 2010Icar..210..655F SPEC