Irene

00014, 1851 KA, 1851KA, 1906 QC, 1906QC, 1913 EA, 1913EA, 1952 TM, 1952TM, I51K00A, J06Q00C, J13E00A, J52T00M

All data for this body: [vot]

MPC data
Name (number) Irene (14)
a 2.58805
e 0.16271
i / sin(i) 9.1296 / 0.15867
q 2.16696
Q 3.00914
ω 98.2248
Node 86.0107
m 325.6083
n 0.2367
Epoch 2460800.5
nobs 3028
nopp 85
Years observed 1851-2025
rms 0.88
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.587
ep 0.199
sin(ip) 0.146
G 0.150
H 6.540
Mass 1.991e+18 1.792e+17
D 146.41 1.572
pV 0.236 0.0163
Value
Rotational Period 15.020
Period quality 3
Spectral Class S
Spectral Class Score 44.600
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5875 0.1987 0.1459 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Mass data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.4100e+18 1.9900e+17 1.9900e+17 Fienga 2009A&A...507.1675F Ephem
1.6900e+19 5.2800e+18 5.2800e+18 Zielenbach 2011AJ....142..120Z Deflec
1.9300e+18 2.0000e+18 2.0000e+18 Zielenbach 2011AJ....142..120Z Deflec
2.7900e+18 2.0200e+18 2.0200e+18 Zielenbach 2011AJ....142..120Z Deflec
2.8135e+18 9.7907e+17 9.7907e+17 Fienga inpop13c Ephem
2.8100e+18 9.7900e+17 9.7900e+17 Fienga 2014arXiv1405.0484F Ephem
3.8000e+18 1.6100e+18 1.6100e+18 Konopliv 2011Icar..211..401K Ephem
4.8100e+18 2.8500e+18 2.8500e+18 Zielenbach 2011AJ....142..120Z Deflec
5.0970e+18 7.7200e+17 7.7200e+17 Fienga 2020MNRAS.492..589F Ephem
5.1200e+19 1.5900e+19 1.5900e+19 Somenzi 2010P&SS...58..858S Deflec
5.2100e+18 Folkner 2009IPNPR.178C...1F Ephem
6.9400e+18 1.6300e+18 1.6300e+18 Baer 2011AJ....141..143B Deflec
7.4000e+18 Folkner 2014IPNPR.196C...1F Ephem
8.2100e+18 1.4500e+18 1.4500e+18 Baer 2008DPS....40.5209B Deflec
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
140.76 8.410 8.410 Masiero 2014ApJ...791..121M NEATM
143.43 28.690 28.690 Ali-Lagoa 2018A&A...612A..85A NEATM
144.09 1.940 1.940 Usui 2011PASJ...63.1117U NEATM
145.68 5.270 5.270 Masiero 2012ApJ...759L...8M NEATM
149.00 17.000 17.000 Hanus 2013Icar..226.1045H AO/LC
149.33 14.930 14.930 Ali-Lagoa 2018A&A...612A..85A NEATM
155.00 6.000 6.000 Viikinkoski 2017A&A...607A.117 AO/LC
155.40 4.385 4.385 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.221 0.0223 0.0223 Masiero 2011ApJ...741...68M NEATM
0.235 0.0470 0.0470 Ali-Lagoa 2018A&A...612A..85A NEATM
0.251 0.0410 0.0410 Masiero 2012ApJ...759L...8M NEATM
0.255 0.1020 0.1020 Ali-Lagoa 2018A&A...612A..85A NEATM
0.270 0.0400 0.0400 Masiero 2014ApJ...791..121M 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
6.54 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.0 0 Synodic Groeneveld 1954ApJ...120..529G Lightcurve
11.0 0 Synodic Wamsteker 1974AJ.....79.1465W Lightcurve
15.028 3 Synodic Pilcher 2009MPBu...36..133P Lightcurve
15.02986 2 Sidereal Hanus 2013Icar..226.1045H Model
15.02988 2 Sidereal Viikinkoski 2017A&A...607A.117V Model
15.029892 2 Sidereal Podlewska 2020A&A...638A..11P Model
15.02991 Synodic Hanus 2011A&A...530A.134H Lightcurve
15.02991 2 Sidereal Martikainen 2021A&A...649A..98M Model
15.038 3 Synodic Aymami 2012MPBu...39..179A Lightcurve
15.06 3- Synodic Belskaya 1993A&AS..101..507B Lightcurve
15.089 2 Synodic Pilcher 2009MPBu...36..133P Lightcurve
18.71 0 Synodic Belskaya 1992acm..proc...45B Lightcurve
9.35 0 Synodic Scaltriti 1981A&A...100..326S Lightcurve
9.47 0 Synodic Rigollet LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
K 0.264 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S Bus-DeMeo VISNIR DeMeo 2009Icar..202..160D SPEC
S Bus VIS Bus 2002Icar..158..146B SPEC
S 0.950000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S 0.990000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
S 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC