Penthesilea

00271, 1887 TB, 1887TB, 1916 GG, 1916GG, 1916 HA, 1916HA, I87T00B, J16G00G, J16H00A

All data for this body: [vot]

MPC data
Name (number) Penthesilea (271)
a 3.00319
e 0.10383
i / sin(i) 3.5322 / 0.06161
q 2.69136
Q 3.31502
ω 55.9490
Node 335.1895
m 132.0880
n 0.1894
Epoch 2460800.5
nobs 5040
nopp 61
Years observed 1889-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.006
ep 0.069
sin(ip) 0.075
G 0.150
H 9.860
Mass
D 63.30 0.092
pV 0.056 0.0002
Value
Rotational Period 18.780
Period quality 3
Spectral Class B
Spectral Class Score 5.580
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0062 0.0689 0.0754 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
49.43 2.469 2.469 Ryan&Woodward 2010AJ....140..933R IRAS-STM
55.67 14.700 14.700 Masiero 2020PSJ.....1....5M NEATM
55.81 5.580 5.580 Ali-Lagoa 2018A&A...612A..85A NEATM
57.35 17.910 17.910 Nugent 2016AJ....152...63N NEATM
57.93 3.300 3.300 Tedesco 2002AJ....123.1056T STM
58.05 15.780 15.780 Nugent 2016AJ....152...63N NEATM
60.73 17.330 17.330 Masiero 2020PSJ.....1....5M NEATM
61.79 0.111 0.111 Ryan&Woodward 2010AJ....140..933R MSX-NEATM
64.00 0.940 0.940 Usui 2011PASJ...63.1117U NEATM
65.90 0.180 0.180 Masiero 2014ApJ...791..121M NEATM
68.79 4.275 4.275 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
68.98 0.730 0.730 Masiero 2014ApJ...791..121M NEATM
72.02 1.077 1.077 Masiero 2011ApJ...741...68M NEATM
75.18 0.674 0.674 Masiero 2011ApJ...741...68M NEATM
80.44 8.040 8.040 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.033 0.0070 0.0070 Ali-Lagoa 2018A&A...612A..85A NEATM
0.038 0.0043 0.0043 Masiero 2011ApJ...741...68M NEATM
0.040 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.041 0.0068 0.0068 Masiero 2011ApJ...741...68M NEATM
0.046 0.0056 0.0056 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.047 0.0310 0.0310 Masiero 2020PSJ.....1....5M NEATM
0.050 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.053 0.0490 0.0490 Masiero 2020PSJ.....1....5M NEATM
0.056 0.0002 0.0002 Ryan&Woodward 2010AJ....140..933R MSX-NEATM
0.060 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM
0.060 0.0500 0.0500 Nugent 2016AJ....152...63N NEATM
0.063 0.0080 0.0080 Tedesco 2002AJ....123.1056T STM
0.068 0.0140 0.0140 Ali-Lagoa 2018A&A...612A..85A NEATM
0.089 0.0094 0.0094 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
9.86 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
18.58 2 Synodic Podlewska 2021ApJS..255....4P Lightcurve
18.787 3 Synodic Pilcher 2009MPBu...36..100P Lightcurve
18.78747 2 Sidereal Martikainen 2021A&A...649A..98M Model
18.7875 2 Sidereal Durech 2023A&A...675A..24D Model
18.7875 2 Sidereal Hanus 2016A&A...586A.108H Model
18.873 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
20.8 2+ Synodic Clark 2013MPBu...40..131C Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.930 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C Tholen VIS Lazzaro 2004Icar..172..179L SPEC
Ch Bus VIS Lazzaro 2004Icar..172..179L SPEC
P 0.930000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC