1991 PH12

1991PH12, 07181, 1986 RN4, 1986RN4, 1986 TU2, 1986TU2, 1986 VK9, 1986VK9, J86R04N, J86T02U, J86V09K, J91P12H

All data for this body: [vot]

MPC data
Name (number) 1991 PH12 (7181)
a 3.08783
e 0.13928
i / sin(i) 11.6431 / 0.20182
q 2.65776
Q 3.51789
ω 147.0908
Node 291.0124
m 353.0001
n 0.1816
Epoch 2460800.5
nobs 6089
nopp 26
Years observed 1953-2025
rms 0.53
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.091
ep 0.131
sin(ip) 0.218
G 0.150
H 12.660
Mass
D 14.76 0.222
pV 0.097 0.0118
Value
Rotational Period 206.680
Period quality 2
Spectral Class X
Spectral Class Score 5.688
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0905 0.1314 0.2178 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.76 0.222 0.222 Masiero 2011ApJ...741...68M NEATM
15.17 3.540 3.540 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.080 0.0500 0.0500 Nugent 2016AJ....152...63N NEATM
0.098 0.0121 0.0121 Masiero 2011ApJ...741...68M 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
12.66 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
206.688 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
X 0.948 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT