Itha

00918, 1907 CA, 1907CA, 1919 QD, 1919QD, 1943 PB, 1943PB, J07C00A, J19Q00D, J43P00B

All data for this body: [vot]

MPC data
Name (number) Itha (918)
a 2.86627
e 0.18831
i / sin(i) 12.0660 / 0.20904
q 2.32652
Q 3.40603
ω 15.2492
Node 330.4235
m 279.6646
n 0.2031
Epoch 2460800.5
nobs 7630
nopp 45
Years observed 1919-2025
rms 0.54
Best values
[raw, vot]

Value Standard error
Parent Itha (918)
 
ap 2.866
ep 0.159
sin(ip) 0.214
G 0.150
H 10.740
Mass
D 22.60 0.068
pV 0.202 0.0163
Value
Rotational Period 3.474
Period quality 3
Spectral Class S
Spectral Class Score 10.808
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
918 Itha 0 Itha Novakovic 2019EPSC...13.1671N HCM
918 Itha 633 Itha Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8658 0.1587 0.2136 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
20.33 0.280 0.280 Masiero 2014ApJ...791..121M NEATM
20.44 1.900 1.900 Tedesco 2002AJ....123.1056T STM
21.34 0.381 0.381 Masiero 2011ApJ...741...68M NEATM
21.37 0.840 0.840 Usui 2011PASJ...63.1117U NEATM
21.46 4.290 4.290 Ali-Lagoa 2018A&A...612A..85A NEATM
21.56 0.110 0.110 Masiero 2014ApJ...791..121M NEATM
23.71 0.094 0.094 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.167 0.0333 0.0333 Masiero 2011ApJ...741...68M NEATM
0.200 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM
0.204 0.0414 0.0414 Masiero 2011ApJ...741...68M NEATM
0.220 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM
0.222 0.0480 0.0480 Tedesco 2002AJ....123.1056T STM
0.244 0.0980 0.0980 Ali-Lagoa 2018A&A...612A..85A 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
10.74 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.473808 2 Sidereal Durech 2018Icar..304..101D Model
3.47381 2 Sidereal Durech 2016A&A...587A..48D Model
3.47381 2 Sidereal Martikainen 2021A&A...649A..98M Model
3.4739 3 Synodic Behrend LCDB Lightcurve
3.47393 3 Synodic Oey 2012MPBu...39....1O Lightcurve
3.474 3 Synodic Farfan 2022MPBu...49..136F Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Tholen VIS Xu 1995Icar..115....1X SPEC
S 0.968 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT