Parfenov

07913, 1978 TU8, 1978TU8, 1981 JC5, 1981JC5, 1990 EN7, 1990EN7, 1992 PF4, 1992PF4, J78T08U, J81J05C, J90E07N, J92P04F

All data for this body: [vot]

MPC data
Name (number) Parfenov (7913)
a 2.89144
e 0.06298
i / sin(i) 1.6034 / 0.02798
q 2.70934
Q 3.07354
ω 177.3459
Node 214.1378
m 177.4939
n 0.2005
Epoch 2460800.5
nobs 3817
nopp 29
Years observed 1978-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.892
ep 0.034
sin(ip) 0.041
G 0.150
H 13.070
Mass
D 7.30 0.193
pV 0.252 0.0616
Value
Rotational Period 12.390
Period quality 2
Spectral Class S
Spectral Class Score 5.520
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 0 Koronis Novakovic 2019EPSC...13.1671N HCM
158 Koronis 605 Koronis 0.2500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8918 0.0342 0.0412 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.30 0.193 0.193 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.252 0.0616 0.0616 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
13.07 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
12.3904 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.574 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.3460 0.1800 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT