Pilcher

01990, 1937 JL, 1937JL, 1940 FA, 1940FA, 1956 EE, 1956EE, 1959 CE1, 1959CE1, 1964 VS2, 1964VS2, 1972 EC, 1972EC, 1972 GO, 1972GO, 1973 QM, 1973QM, J37J00L, J40F00A, J56E00E, J59C01E, J64V02S, J72E00C, J72G00O, J73Q00M

All data for this body: [vot]

MPC data
Name (number) Pilcher (1990)
a 2.17360
e 0.05201
i / sin(i) 3.1351 / 0.05469
q 2.06054
Q 2.28666
ω 12.2900
Node 193.5613
m 171.9919
n 0.3076
Epoch 2460800.5
nobs 5337
nopp 37
Years observed 1937-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.174
ep 0.104
sin(ip) 0.063
G 0.150
H 12.870
Mass
D 7.21 0.060
pV 0.193 0.0214
Value
Rotational Period 2.840
Period quality 3
Spectral Class S
Spectral Class Score 5.928
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1741 0.1037 0.0630 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.75 0.170 0.170 Masiero 2014ApJ...791..121M NEATM
7.27 0.064 0.064 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.186 0.0254 0.0254 Masiero 2011ApJ...741...68M NEATM
0.210 0.0400 0.0400 Masiero 2014ApJ...791..121M 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
12.87 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.84096 3 Synodic Benishek LCDB Lightcurve
2.841 3 Synodic Dose 2022MPBu...49...44D Lightcurve
2.842 2+ Synodic Brincat 2017MPBu...44R...1B Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Q R Tholen VIS Hicks 1998Icar..133...69H SPEC
S 0.988 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT