Purcell

04040, 1969 OR, 1969OR, 1977 HV, 1977HV, 1979 YY2, 1979YY2, 1981 ER49, 1981ER49, 1987 SN1, 1987SN1, J69O00R, J77H00V, J79Y02Y, J81E49R, J87S01N

All data for this body: [vot]

MPC data
Name (number) Purcell (4040)
a 2.67200
e 0.06973
i / sin(i) 2.3374 / 0.04079
q 2.48569
Q 2.85831
ω 270.2636
Node 55.6686
m 250.2940
n 0.2257
Epoch 2460800.5
nobs 4686
nopp 32
Years observed 1950-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.672
ep 0.046
sin(ip) 0.028
G 0.150
H 12.970
Mass
D 12.31 0.081
pV 0.094 0.0080
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 5.874
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6724 0.0459 0.0283 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.92 0.190 0.190 Masiero 2014ApJ...791..121M NEATM
12.40 0.089 0.089 Masiero 2011ApJ...741...68M NEATM
14.18 5.630 5.630 Masiero 2012ApJ...759L...8M NEATM
14.52 3.720 3.720 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.060 0.0500 0.0500 Nugent 2016AJ....152...63N NEATM
0.073 0.0490 0.0490 Masiero 2012ApJ...759L...8M NEATM
0.087 0.0144 0.0144 Masiero 2011ApJ...741...68M NEATM
0.100 0.0100 0.0100 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
12.97 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D D 0.5135 0.5135 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Ds Ds None None Movis NIR Popescu 2018A&A...617A..12P PHOT
X 0.979 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT