Ilfpetrov

03668, 1974 EU, 1974EU, 1982 UM7, 1982UM7, 1982 XY3, 1982XY3, 1985 VW1, 1985VW1, J74E00U, J82U07M, J82X03Y, J85V01W

All data for this body: [vot]

MPC data
Name (number) Ilfpetrov (3668)
a 2.18897
e 0.10260
i / sin(i) 3.0758 / 0.05366
q 1.96438
Q 2.41356
ω 32.0152
Node 193.9766
m 237.6773
n 0.3043
Epoch 2460800.5
nobs 6997
nopp 27
Years observed 1982-2025
rms 0.54
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.188
ep 0.130
sin(ip) 0.053
G 0.150
H 13.420
Mass
D 6.31 0.035
pV 0.224 0.0250
Value
Rotational Period 15.260
Period quality 2
Spectral Class S
Spectral Class Score 14.276
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1881 0.1295 0.0530 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.03 1.250 1.250 Nugent 2016AJ....152...63N NEATM
6.28 0.038 0.038 Masiero 2011ApJ...741...68M NEATM
6.50 0.090 0.090 Masiero 2014ApJ...791..121M NEATM
6.71 0.420 0.420 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.220 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM
0.220 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM
0.235 0.0597 0.0597 Masiero 2011ApJ...741...68M NEATM
0.247 0.0980 0.0980 Masiero 2012ApJ...759L...8M 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
13.42 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.57729 2 Sidereal Durech 2018A&A...617A..57D Model
15.268 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
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.49 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9204 0.9480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9622 0.9480 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT