1991 PK11

1991PK11, 08513, 1973 UY2, 1973UY2, J73U02Y, J91P11K

All data for this body: [vot]

MPC data
Name (number) 1991 PK11 (8513)
a 2.74489
e 0.17653
i / sin(i) 6.8275 / 0.11888
q 2.26034
Q 3.22943
ω 131.3278
Node 313.1309
m 73.8516
n 0.2167
Epoch 2460800.5
nobs 4929
nopp 24
Years observed 1973-2025
rms 0.57
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.745
ep 0.175
sin(ip) 0.134
G 0.150
H 13.200
Mass
D 13.77 1.472
pV 0.056 0.0190
Value
Rotational Period
Period quality None
Spectral Class D
Spectral Class Score 8.500
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7451 0.1755 0.1342 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.99 2.120 2.120 Nugent 2016AJ....152...63N NEATM
13.71 4.430 4.430 Masiero 2021PSJ.....2..162M NEATM
13.83 3.645 3.645 Masiero 2017AJ....154..168M NEATM
14.97 3.930 3.930 Masiero 2012ApJ...759L...8M NEATM
15.75 4.550 4.550 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.041 0.0220 0.0470 Masiero 2021PSJ.....2..162M NEATM
0.057 0.0390 0.0390 Masiero 2012ApJ...759L...8M NEATM
0.060 0.0700 0.0700 Nugent 2016AJ....152...63N NEATM
0.062 0.0382 0.0382 Masiero 2017AJ....154..168M NEATM
0.072 0.0350 0.0680 Masiero 2021PSJ.....2..162M 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
13.20 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 Bus VIS Bus 2002Icar..158..146B SPEC
D DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
D 0.75 Bus VIS Carvano 2010A&A...510A..43C PHOT
L&D D DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
P M 0.670000 0.160000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC