Penelope

00201, 1869 GA, 1869GA, 1879 PA, 1879PA, I69G00A, I79P00A

All data for this body: [vot]

MPC data
Name (number) Penelope (201)
a 2.68031
e 0.17944
i / sin(i) 5.7557 / 0.10029
q 2.19937
Q 3.16126
ω 181.3381
Node 156.8689
m 78.2981
n 0.2246
Epoch 2460800.5
nobs 11713
nopp 67
Years observed 1879-2025
rms 0.49
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.678
ep 0.146
sin(ip) 0.090
G 0.150
H 8.570
Mass 9.335e+17 3.994e+17
D 69.82 0.857
pV 0.099 0.0043
Value
Rotational Period 3.747
Period quality 3
Spectral Class Xk
Spectral Class Score 21.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
808 Merxia 0 Merxia Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6782 0.1459 0.0901 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Mass data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.1849e+18 5.6489e+17 5.6489e+17 Fienga INPOP19a Ephem
6.8200e+17 Folkner 2014IPNPR.196C...1F Ephem
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
57.99 2.559 2.559 Ryan&Woodward 2010AJ....140..933R IRAS-STM
60.87 6.400 6.400 Masiero 2012ApJ...759L...8M NEATM
65.85 1.150 1.150 Usui 2011PASJ...63.1117U NEATM
66.29 6.630 6.630 Ali-Lagoa 2018A&A...612A..85A NEATM
68.39 3.500 3.500 Tedesco 2002AJ....123.1056T STM
82.78 3.577 3.577 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
85.00 8.000 8.000 Hanus 2013Icar..226.1045H AO/LC
85.88 3.140 3.140 Masiero 2014ApJ...791..121M NEATM
88.09 2.792 2.792 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.040 0.0100 0.0100 Masiero 2012ApJ...759L...8M NEATM
0.097 0.0060 0.0060 Masiero 2011ApJ...741...68M NEATM
0.100 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM
0.110 0.0098 0.0098 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.160 0.0180 0.0180 Tedesco 2002AJ....123.1056T STM
0.192 0.0380 0.0380 Ali-Lagoa 2018A&A...612A..85A NEATM
0.227 0.0212 0.0212 Ryan&Woodward 2010AJ....140..933R IRAS-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
8.57 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.7425 3 Synodic Behrend LCDB Lightcurve
3.746 3 Synodic Weidenschilling 1987Icar...70..191W Lightcurve
3.747 Synodic Lagerkvist 1981M&P....24..437L Lightcurve
3.747 3 Synodic Lagerkvist 1981A&A...104..148L Lightcurve
3.74708 2 Sidereal Drummond 1988Icar...76...19D Model
3.74709 2 Sidereal Drummond 1991Icar...89...44D Model
3.74721 3- Synodic Behrend LCDB Lightcurve
3.747362 2 Sidereal Tungalag 2002KFNT...18..508T Model
3.7474 3 Synodic ECLA LCDB Lightcurve
3.7474 3 Synodic Shevchenko 2002Icar..155..365S Lightcurve
3.74744 2 Sidereal Michalowski 1993Icar..106..563M Model
3.74744 2 Sidereal Michalowski 1996Icar..123..456M Model
3.74745 2 Sidereal Erikson 1993Icar..103...62E Model
3.74745 2 Sidereal Hanus 2013Icar..226.1045H Model
3.74745 2 Sidereal Torppa 2003Icar..164..346T Model
3.74746 2 Sidereal Magnusson 1990Icar...85..229M Model
3.747465 2 Sidereal De Angelis 1995P&SS...43..649D Model
3.74748 3 Synodic Behrend LCDB Lightcurve
3.748 3 Synodic Surdej 1983A&AS...54..371S Lightcurve
3.7491 3 Synodic Alton 2012MPBu...39..107A Lightcurve
3.75 2 Synodic Mizoguchi 2017MPBu...44..190M Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
M Tholen VIS Clark 1995Icar..113..387C PHOT
M 0.920000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
M 0.960000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
P 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
P M 0.690000 0.300000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
X Bus VIS Bus 2002Icar..158..146B SPEC
X Bus VIS Fornasier 2010Icar..210..655F SPEC
X 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
Xk Bus-DeMeo VISNIR DeMeo 2009Icar..202..160D SPEC