Irkutsk

03224, 1952 DE2, 1952DE2, 1953 NF, 1953NF, 1953 PH, 1953PH, 1957 HN, 1957HN, 1966 DP, 1966DP, 1971 KR, 1971KR, 1977 RL6, 1977RL6, 1978 YX1, 1978YX1, 1982 TS, 1982TS, 1984 AL, 1984AL, J52D02E, J53N00F, J53P00H, J57H00N, J66D00P, J71K00R, J77R06L, J78Y01X, J82T00S, J84A00L

All data for this body: [vot]

MPC data
Name (number) Irkutsk (3224)
a 2.78882
e 0.16370
i / sin(i) 4.3129 / 0.07520
q 2.33229
Q 3.24535
ω 4.4407
Node 227.7802
m 217.6770
n 0.2116
Epoch 2460800.5
nobs 8199
nopp 35
Years observed 1953-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.785
ep 0.196
sin(ip) 0.087
G 0.150
H 11.750
Mass
D 27.77 0.282
pV 0.043 0.0024
Value
Rotational Period 33.040
Period quality 3-
Spectral Class X
Spectral Class Score 10.070
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7848 0.1962 0.0869 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
24.90 0.340 0.340 Masiero 2012ApJ...759L...8M NEATM
27.14 7.240 7.240 Nugent 2016AJ....152...63N NEATM
31.12 2.100 2.100 Tedesco 2002AJ....123.1056T STM
32.82 0.870 0.870 Masiero 2012ApJ...759L...8M NEATM
33.01 10.320 10.320 Nugent 2016AJ....152...63N NEATM
34.34 3.430 3.430 Ali-Lagoa 2018A&A...612A..85A NEATM
34.93 0.770 0.770 Usui 2011PASJ...63.1117U NEATM
35.28 1.329 1.329 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
35.42 9.210 9.210 Masiero 2020PSJ.....1....5M NEATM
36.63 7.330 7.330 Ali-Lagoa 2018A&A...612A..85A NEATM
36.73 11.820 11.820 Masiero 2020PSJ.....1....5M NEATM
39.43 12.396 12.396 Masiero 2017AJ....154..168M NEATM
39.45 11.590 11.590 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.026 0.0170 0.0170 Masiero 2020PSJ.....1....5M NEATM
0.027 0.0147 0.0147 Masiero 2017AJ....154..168M NEATM
0.028 0.0210 0.0210 Masiero 2020PSJ.....1....5M NEATM
0.029 0.0180 0.0180 Masiero 2020PSJ.....1....5M NEATM
0.030 0.0500 0.0500 Nugent 2016AJ....152...63N NEATM
0.033 0.0130 0.0130 Ali-Lagoa 2018A&A...612A..85A NEATM
0.038 0.0080 0.0080 Ali-Lagoa 2018A&A...612A..85A NEATM
0.043 0.0033 0.0033 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.045 0.0060 0.0060 Masiero 2012ApJ...759L...8M NEATM
0.050 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM
0.055 0.0080 0.0080 Tedesco 2002AJ....123.1056T STM
0.078 0.0190 0.0190 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
11.75 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
33.047 3- Synodic Colazo 2023MPBu...50...51C Lightcurve
33.08 2+ Synodic Polakis 2022MPBu...49..298P Lightcurve
33.1038 2 Sidereal Durech 2019A&A...631A...2D Model
33.106 2 Sidereal Durech 2023A&A...675A..24D Model
33.14 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
C C DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
P 0.990000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
X Bus VIS Bus 2002Icar..158..146B SPEC
X 0.845 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT