Pearce

03304, 1978 QA1, 1978QA1, 1981 EQ21, 1981EQ21, 1984 WQ1, 1984WQ1, J78Q01A, J81E21Q, J84W01Q

All data for this body: [vot]

MPC data
Name (number) Pearce (3304)
a 3.05546
e 0.27817
i / sin(i) 2.2006 / 0.03840
q 2.20553
Q 3.90538
ω 58.5060
Node 320.2555
m 244.3347
n 0.1845
Epoch 2460800.5
nobs 2542
nopp 31
Years observed 1977-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.055
ep 0.238
sin(ip) 0.062
G 0.150
H 13.650
Mass
D 9.32 0.184
pV 0.077 0.0115
Value
Rotational Period 40.320
Period quality 2
Spectral Class B
Spectral Class Score 13.132
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0549 0.2385 0.0622 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.26 3.990 3.990 Masiero 2012ApJ...759L...8M NEATM
9.31 0.186 0.186 Masiero 2011ApJ...741...68M NEATM
9.39 2.492 2.492 Masiero 2017AJ....154..168M NEATM
9.50 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
9.50 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.067 0.0740 0.0740 Masiero 2012ApJ...759L...8M NEATM
0.077 0.0120 0.0120 Masiero 2011ApJ...741...68M NEATM
0.080 0.0494 0.0494 Masiero 2017AJ....154..168M 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
13.65 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.35 Synodic Erasmus 2019ApJS..242...15E Lightcurve
40.323 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
B 0.635 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
B B 0.5003 0.6170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.7201 0.6170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.34 Bus VIS Carvano 2010A&A...510A..43C PHOT
C 1.000000 Bus-DeMeo VIS Erasmus 2019ApJS..242...15E PHOT