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JPL Small-Body Database Browser
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C/2010 X1 (Elenin)
Classification:
Hyperbolic Comet
SPK-ID:
1003113
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Physical Parameters
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2455651.5 (2011-Mar-31.0) TDB
Reference:
JPL 38
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
1.000068095226441
1.8496e-06
a
-7084.513117079299
192.42
au
q
.4824215249311249
2.6549e-06
au
i
1.83957593943795
4.5064e-05
deg
node
323.235099758002
0.00089743
deg
peri
343.798053273921
0.00089506
deg
M
-.0002706073326346699
1.1025e-05
deg
t
p
2455815.219533945734
(2011-Sep-10.71953395)
0.00036038
TDB
period
n/a
n/a
n/a
n/a
d
yr
n
1.652871383840884E-6
6.7341e-08
deg/d
Q
n/a
n/a
au
Additional Model Parameters
Parameter
Value
Uncertainty (1-sigma)
A1
[EST]
-4.490851666247193E-8
1.175E-8
A2
[EST]
6.163129316527091E-8
7.965E-9
Orbit Determination Parameters
# obs. used (total)
2235
data-arc span
271 days
first obs. used
2010-12-10
last obs. used
2011-09-07
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
norm. resid. RMS
.59542
source
ORB
producer
Shantanu Naidu
solution date
2018-Aug-29 15:52:04
Additional Information
Earth MOID
= .0306308 au
Jupiter MOID
= .148357 au
T_jup
= 0.861
[ show covariance matrix ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Physical Parameters
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
comet total magnitude
M1
10.4
0.9
38
from 354 observations, assumed slope, autocmod 2.6n
comet total magnitude slope
K1
11.
n/a
38
autocmod 2.6n
comet nuclear magnitude
M2
13.7
0.8
38
from 1786 observations, autocmod 2.6n
comet nuclear magnitude slope
K2
5.
n/a
38
autocmod 2.6n
comet nuclear phase coefficient
PC
0.03
n/a
38
autocmod 2.6n
[ show close-approach data ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Physical Parameters
|
Close-Approach Data
]
2019-Dec-08 11:04 UT
(server date/time)
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