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JPL Small-Body Database Browser
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117557 (2005 EG22)
Classification:
Main-belt Asteroid
SPK-ID:
2117557
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference:
JPL 17
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1079008291708714
6.6152e-08
a
3.09005854822103
3.4464e-08
au
q
2.756638668681442
2.0679e-07
au
i
5.126400402484713
8.3322e-06
deg
node
152.267170131704
8.1261e-05
deg
peri
97.15410885557874
9.2867e-05
deg
M
144.4797466438476
4.8567e-05
deg
t
p
2457804.243556431883
(2017-Feb-19.74355643)
0.00026297
TDB
period
1984.031162451715
5.43
3.3192e-05
9.087e-08
d
yr
n
.1814487629091165
3.0356e-09
deg/d
Q
3.423478427760619
3.8183e-08
au
Orbit Determination Parameters
# obs. used (total)
383
data-arc span
8475 days (23.20 yr)
first obs. used
1996-09-14
last obs. used
2019-11-28
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.61043
source
ORB
producer
Otto Matic
solution date
2019-Dec-04 11:01:27
Additional Information
Earth MOID
= 1.74862 au
Jupiter MOID
= 1.62588 au
T_jup
= 3.210
[ show covariance matrix ]
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
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Physical Parameters
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Discovery Circumstances
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Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.1
n/a
MPO453646
diameter
diameter
4.266
km
0.624
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.097
0.047
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
117557 (2005 EG22)
Discovered 2005-Mar-03 by CSS at Catalina
Reference:
20051019/Numbers.arc
Last Updated:
2005-10-26
[ show close-approach data ]
Alternate Designations
2005 EG22
= 1996 RD18
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-13 11:06 UT
(server date/time)
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Ryan S. Park
Webmaster
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