Irenaea

00794, 1914 QB, 1914QB, 1930 KH, 1930KH, 1936 QK, 1936QK, 1947 QD, 1947QD, 1953 TT2, 1953TT2, J14Q00B, J30K00H, J36Q00K, J47Q00D, J53T02T

All data for this body: [vot]

MPC data
Name (number) Irenaea (794)
a 3.13270
e 0.29501
i / sin(i) 5.4173 / 0.09441
q 2.20851
Q 4.05689
ω 131.2349
Node 160.3863
m 351.5695
n 0.1778
Epoch 2460800.5
nobs 5837
nopp 41
Years observed 1915-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.140
ep 0.284
sin(ip) 0.094
G 0.150
H 11.400
Mass
D 37.65 1.248
pV 0.042 0.0080
Value
Rotational Period 9.100
Period quality 3-
Spectral Class X
Spectral Class Score 6.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1396 0.2838 0.0940 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
29.80 11.780 11.780 Nugent 2016AJ....152...63N NEATM
31.95 11.690 11.690 Masiero 2021PSJ.....2..162M NEATM
32.58 10.050 10.050 Masiero 2021PSJ.....2..162M NEATM
34.19 10.380 10.380 Masiero 2021PSJ.....2..162M NEATM
35.70 6.140 6.140 Masiero 2012ApJ...759L...8M NEATM
36.94 7.390 7.390 Ali-Lagoa 2018A&A...612A..85A NEATM
38.00 1.350 1.350 Usui 2011PASJ...63.1117U NEATM
41.51 8.300 8.300 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.035 0.0140 0.0140 Ali-Lagoa 2018A&A...612A..85A NEATM
0.042 0.0180 0.0300 Masiero 2021PSJ.....2..162M NEATM
0.042 0.0210 0.0420 Masiero 2021PSJ.....2..162M NEATM
0.044 0.0180 0.0180 Ali-Lagoa 2018A&A...612A..85A NEATM
0.046 0.0180 0.0180 Masiero 2012ApJ...759L...8M NEATM
0.046 0.0210 0.0400 Masiero 2021PSJ.....2..162M NEATM
0.060 0.0400 0.0400 Nugent 2016AJ....152...63N 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
11.40 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
9.14 3- Synodic Behrend LCDB Lightcurve
9.17737 2 Sidereal Durech 2020A&A...643A..59D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
X 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT