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JPL Small-Body Database Browser
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145P/Shoemaker-Levy 5
Classification:
Jupiter-family Comet
SPK-ID:
1000135
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2457082.5 (2015-Mar-01.0) TDB
Reference:
JPL 30
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.5409816362750146
1.6316e-07
a
4.142757958470263
1.865e-07
au
q
1.901601979405681
7.2357e-07
au
i
11.26421604225583
1.307e-05
deg
node
26.84077386097572
6.993e-05
deg
peri
10.42027692978917
9.076e-05
deg
M
253.0668819161457
2.1824e-05
deg
t
p
2457997.334422020250
(2017-Aug-31.83442202)
0.00016237
TDB
period
3079.872707621128
8.43
0.00020797
5.694e-07
d
yr
n
.1168879477093914
7.893e-09
deg/d
Q
6.383913937534844
2.8739e-07
au
Additional Model Parameters
Parameter
Value
Uncertainty (1-sigma)
A1
[EST]
-1.079237050724678E-9
3.488E-10
A2
[EST]
-1.298139527190071E-10
8.9E-12
Orbit Determination Parameters
# obs. used (total)
881
data-arc span
9741 days (26.67 yr)
first obs. used
1991-09-12
last obs. used
2018-05-14
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.55644
source
ORB
producer
Otto Matic
solution date
2018-May-26 20:53:18
Additional Information
Earth MOID
= .909833 au
Jupiter MOID
= .240257 au
T_jup
= 2.728
[ hide covariance matrix ]
Orbit Covariance (8×8)
e
q
tp
node
peri
i
A1
A2
e
2.662264051971409E-14
-1.174498455542371E-13
-8.488466270154591E-13
3.635763621818397E-15
-2.902445292400095E-13
9.736101927404062E-14
4.282772554426816E-17
-8.090170282381841E-19
q
-1.174498455542371E-13
5.235513480830117E-13
2.743511746592418E-13
-3.456964252929589E-13
-8.449520891785396E-13
-4.495111347913282E-13
-2.027328767882884E-16
4.082616676217764E-18
tp
-8.488466270154591E-13
2.743511746592418E-13
2.636405143388485E-8
1.873517372384299E-10
9.405957131019044E-9
-2.887351844215809E-10
-6.378830743247298E-15
-5.089288550674887E-16
node
3.635763621818397E-15
-3.456964252929589E-13
1.873517372384299E-10
4.890213025186112E-9
-4.628303895764372E-9
6.140342023482031E-10
1.194141054868831E-15
-9.207441263595963E-18
peri
-2.902445292400095E-13
-8.449520891785396E-13
9.405957131019044E-9
-4.628303895764372E-9
8.237300669803521E-9
-6.824602351968525E-10
5.884523916102972E-16
-2.944018995645265E-16
i
9.736101927404062E-14
-4.495111347913282E-13
-2.887351844215809E-10
6.140342023482031E-10
-6.824602351968525E-10
1.708193293331329E-10
5.226088595075119E-16
-9.883175038031559E-18
A1
4.282772554426816E-17
-2.027328767882884E-16
-6.378830743247298E-15
1.194141054868831E-15
5.884523916102972E-16
5.226088595075119E-16
1.216682304528914E-19
-2.648620728880202E-21
A2
-8.090170282381841E-19
4.082616676217764E-18
-5.089288550674887E-16
-9.207441263595963E-18
-2.944018995645265E-16
-9.883175038031559E-18
-2.648620728880202E-21
7.921126260516982E-23
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
comet total magnitude
M1
13.5
0.9
30
2 parameter fit from 270 observations, autocmod 2.6n
comet total magnitude slope
K1
8.
n/a
30
autocmod 2.6n
[ show close-approach data ]
Alternate Designations
Perihelion
Year
(est.)
New-Style
Desig
Roman
Numeral
Year/
Letter
2000.8
145P/2000 R1
1992.4
145P/1991 T1
1991 XXII
1991z
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
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Close-Approach Data
]
2019-Dec-15 21:37 UT
(server date/time)
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Ryan S. Park
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