callisto-orb-all.xml
8.25 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
<?xml version="1.0" encoding="UTF-8"?>
<Spase xmlns="http://www.spase-group.org/data/schema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.spase-group.org/data/schema http://cdpp.irap.omp.eu/AMDA-NG/public/schemas/spase-amda-1_2_0.xsd">
<Version>2.2.6</Version>
<NumericalData>
<ResourceID>spase://CDPP/NumericalData/AMDA/Ephemerides/callisto-orb-all</ResourceID>
<ResourceHeader>
<ResourceName>Callisto</ResourceName>
<ReleaseDate>2018-10-14T11:46:29Z</ReleaseDate>
<Description>Callisto is the outermost of the four Galilean moons of Jupiter.
It orbits at a distance of approximately 26 radius of Jupiter.
This is significantly larger than the orbital radius of the next-closest Galilean satellite, Ganymede.
As a result of this relatively distant orbit, Callisto does not participate in the mean-motion resonance in which the three inner Galilean satellites are locked
and probably never has.
Like most other regular planetary moons, Callisto's rotation is locked to be synchronous with
its orbit. The length of Callisto's day, simultaneously its orbital period, is about 16.7 Earth days.
Its orbit is very slightly eccentric and inclined to the Jovian equator, with the eccentricity and inclination
changing quasi-periodically due to solar and planetary gravitational perturbations on a timescale of centuries.
The ranges of change are 0.0072–0.0076 and 0.20–0.60°, respectively.
These orbital variations cause the axial tilt to vary between 0.4 and 1.6°.
The dynamical isolation of Callisto means that it has never been appreciably tidally heated,
which has important consequences for its internal structure and evolution. Its distance from
Jupiter also means that the charged-particle flux from Jupiter's magnetosphere at its surface
is relatively low about 300 times lower than, for example, that at Europa.
Hence, unlike the other Galilean moons, charged-particle irradiation has had a relatively minor effect on Callisto's surface.
The radiation level at Callisto's surface is equivalent to a dose of about 0.01 rem (0.1 mSv) per day, which is over ten times higher than Earth's average background radiation.</Description>
<Contact>
<PersonID>spase://CDPP/Person/NAIF</PersonID>
<Role>PrincipalInvestigator</Role>
</Contact>
<Association>
<AssociationID>jup-moons-orb</AssociationID>
<AssociationType>PartOf</AssociationType>
<Note>Jupiter Moons</Note>
</Association>
</ResourceHeader>
<AccessInformation>
<RepositoryID>spase://SMWG/Repository/CDPP/AMDA</RepositoryID>
<Availability>Online</Availability>
<AccessRights>Open</AccessRights>
<AccessURL>
<URL>http://amda.cdpp.eu</URL>
</AccessURL>
<Format>Text.ASCII</Format>
</AccessInformation>
<ProviderName>SPICE</ProviderName>
<InstrumentID>spase://CDPP/Instrument/AMDA/Ephemerides</InstrumentID>
<MeasurementType>Ephemeris</MeasurementType>
<TemporalDescription>
<TimeSpan>
<StartDate>1970-01-01T00:00:05Z</StartDate>
<StopDate>2036-12-31T23:40:04Z</StopDate>
</TimeSpan>
<Cadence>PT20M</Cadence>
</TemporalDescription>
<ObservedRegion>Jupiter</ObservedRegion>
<ObservedRegion>Jupiter.Callisto</ObservedRegion>
<Parameter>
<Name>distance callisto-jupiter</Name>
<ParameterKey>cal_jup_r</ParameterKey>
<Ucd/>
<Units>Rj</Units>
<RenderingHints>
<DisplayType>TimeSeries</DisplayType>
</RenderingHints>
<Support>
<SupportQuantity>Positional</SupportQuantity>
</Support>
</Parameter>
<Parameter>
<Name>xyz_jsm</Name>
<ParameterKey>cal_jup_jsm</ParameterKey>
<Ucd/>
<Units>Rj</Units>
<CoordinateSystem>
<CoordinateRepresentation>Cartesian</CoordinateRepresentation>
<CoordinateSystemName>JSM</CoordinateSystemName>
</CoordinateSystem>
<RenderingHints>
<DisplayType>TimeSeries</DisplayType>
</RenderingHints>
<Structure>
<Size>3</Size>
<Element>
<Name>x</Name>
<Index>1</Index>
<ParameterKey>cal_jup_jsm(0)</ParameterKey>
</Element>
<Element>
<Name>y</Name>
<Index>2</Index>
<ParameterKey>cal_jup_jsm(1)</ParameterKey>
</Element>
<Element>
<Name>z</Name>
<Index>3</Index>
<ParameterKey>cal_jup_jsm(2)</ParameterKey>
</Element>
</Structure>
<Support>
<SupportQuantity>Positional</SupportQuantity>
</Support>
</Parameter>
<Parameter>
<Name>xyz_jso</Name>
<ParameterKey>cal_jup_jso</ParameterKey>
<Ucd/>
<Units>Rj</Units>
<CoordinateSystem>
<CoordinateRepresentation>Cartesian</CoordinateRepresentation>
<CoordinateSystemName>JSO</CoordinateSystemName>
</CoordinateSystem>
<RenderingHints>
<DisplayType>TimeSeries</DisplayType>
</RenderingHints>
<Structure>
<Size>3</Size>
<Element>
<Name>x</Name>
<Index>1</Index>
<ParameterKey>cal_sat_jso(0)</ParameterKey>
</Element>
<Element>
<Name>y</Name>
<Index>2</Index>
<ParameterKey>cal_jup_jso(1)</ParameterKey>
</Element>
<Element>
<Name>z</Name>
<Index>3</Index>
<ParameterKey>cal_jup_jso(2)</ParameterKey>
</Element>
</Structure>
<Support>
<SupportQuantity>Positional</SupportQuantity>
</Support>
</Parameter>
<Parameter>
<Name>xyz_IAU_jupiter</Name>
<ParameterKey>cal_jup_xyz</ParameterKey>
<Ucd/>
<Units>Rj</Units>
<CoordinateSystem>
<CoordinateRepresentation>Cartesian</CoordinateRepresentation>
<CoordinateSystemName>IAU_Jupiter</CoordinateSystemName>
</CoordinateSystem>
<RenderingHints>
<DisplayType>TimeSeries</DisplayType>
</RenderingHints>
<Structure>
<Size>3</Size>
<Element>
<Name>x</Name>
<Index>1</Index>
<ParameterKey>cal_jup_xyz(0)</ParameterKey>
</Element>
<Element>
<Name>y</Name>
<Index>2</Index>
<ParameterKey>cal_jup_xyz(1)</ParameterKey>
</Element>
<Element>
<Name>z</Name>
<Index>3</Index>
<ParameterKey>cal_jup_xyz(2)</ParameterKey>
</Element>
</Structure>
<Support>
<SupportQuantity>Positional</SupportQuantity>
</Support>
</Parameter>
<Parameter>
<Name>latitude IAU_jupiter</Name>
<ParameterKey>cal_jup_lat</ParameterKey>
<Ucd/>
<Units>deg</Units>
<Support>
<SupportQuantity>Positional</SupportQuantity>
</Support>
</Parameter>
<Parameter>
<Name>longitude IAU_jupiter</Name>
<ParameterKey>cal_jup_lon</ParameterKey>
<Ucd/>
<Units>deg</Units>
<Support>
<SupportQuantity>Positional</SupportQuantity>
</Support>
</Parameter>
</NumericalData>
</Spase>