Isis

00042, 1856 KB, 1856KB, 1910 TA, 1910TA, 1939 GM, 1939GM, 1950 DD1, 1950DD1, I56K00B, J10T00A, J39G00M, J50D01D

All data for this body: [vot]

MPC data
Name (number) Isis (42)
a 2.44244
e 0.22191
i / sin(i) 8.5113 / 0.14800
q 1.90043
Q 2.98445
ω 237.2731
Node 84.1655
m 51.5652
n 0.2582
Epoch 2460800.5
nobs 8001
nopp 81
Years observed 1856-2025
rms 0.52
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.441
ep 0.189
sin(ip) 0.133
G 0.150
H 7.700
Mass 1.422e+18 2.277e+17
D 106.37 0.831
pV 0.160 0.0055
Value
Rotational Period 13.500
Period quality 3
Spectral Class K
Spectral Class Score 42.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4412 0.1887 0.1326 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Mass data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.3800e+18 Folkner 2009IPNPR.178C...1F Ephem
1.4400e+18 3.6700e+17 3.6700e+17 Fienga 2020MNRAS.492..589F Ephem
1.8500e+18 5.9300e+17 5.9300e+17 Fienga 2011CeMDA.111..363F Ephem
1.8600e+18 Folkner 2014IPNPR.196C...1F Ephem
2.1400e+17 6.6900e+17 6.6900e+17 Fienga 2014arXiv1405.0484F Ephem
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
100.20 3.400 3.400 Tedesco 2002AJ....123.1056T STM
102.00 4.000 4.000 Viikinkoski 2017A&A...607A.117 AO/LC
102.90 2.287 2.287 Ryan&Woodward 2010AJ....140..933R IRAS-STM
104.50 1.370 1.370 Usui 2011PASJ...63.1117U NEATM
104.69 6.122 6.122 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
111.00 1.380 1.380 Masiero 2012ApJ...759L...8M NEATM
116.59 11.660 11.660 Ali-Lagoa 2018A&A...612A..85A NEATM
120.12 12.010 12.010 Ali-Lagoa 2018A&A...612A..85A NEATM
97.00 10.000 10.000 Hanus 2013Icar..226.1045H AO/LC
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.131 0.0260 0.0260 Ali-Lagoa 2018A&A...612A..85A NEATM
0.139 0.0240 0.0240 Masiero 2012ApJ...759L...8M NEATM
0.139 0.0280 0.0280 Ali-Lagoa 2018A&A...612A..85A NEATM
0.158 0.0184 0.0184 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.162 0.0073 0.0073 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.171 0.0120 0.0120 Tedesco 2002AJ....123.1056T STM
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
7.70 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
13.58 Synodic Hainaut Rouelle 1995A&AS..112..125H Lightcurve
13.58364 2 Sidereal Hanus 2011A&A...530A.134H Model
13.58364 2 Sidereal Hanus 2013Icar..226.1045H Model
13.58364 2 Sidereal Hanus 2016A&A...586A.108H Model
13.58364 2 Sidereal Viikinkoski 2017A&A...607A.117V Model
13.59 3- Synodic Behrend LCDB Lightcurve
13.59 3 Synodic Harris 1979Icar...38..100H Lightcurve
13.5905 2 Sidereal Cellino 2019A&A...631A..67C Model
13.597 2 Sidereal Denchev 1998P&SS...46..673D Model
13.59701 2 Sidereal Torppa 2003Icar..164..346T Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
K Bus-DeMeo VISNIR DeMeo 2009Icar..202..160D SPEC
K Bus-DeMeo VISNIR Gietzen 2012M&PS...47.1789G SPEC
L Bus VIS Bus 2002Icar..158..146B SPEC
M S 0.680000 0.240000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S Tholen VIS Clark 1995Icar..113..387C PHOT
S K 0.500000 0.380000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
So Howell VISNIR Howell 1994JGR....9910847H PHOT
Sq Bus-DeMeo VISNIR Bourdelle de Micas 2022A&A...665A..83B SPEC