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JPL Small-Body Database Browser
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212102 (2005 EH154)
Classification:
Main-belt Asteroid
SPK-ID:
2212102
[
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 13
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1939127124142881
7.4642e-08
a
2.561903168996529
1.8508e-08
au
q
2.065117576553652
1.9885e-07
au
i
12.72908859719763
7.4119e-06
deg
node
4.138614582807785
2.6954e-05
deg
peri
177.7622389458186
3.3274e-05
deg
M
161.006647080927
2.2404e-05
deg
t
p
2457930.640380394546
(2017-Jun-26.14038039)
8.7985e-05
TDB
period
1497.760915030758
4.10
1.623e-05
4.444e-08
d
yr
n
.2403587891680343
2.6046e-09
deg/d
Q
3.058688761439407
2.2097e-08
au
Orbit Determination Parameters
# obs. used (total)
339
data-arc span
6799 days (18.61 yr)
first obs. used
2001-03-18
last obs. used
2019-10-29
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.53848
source
ORB
producer
Otto Matic
solution date
2019-Nov-07 23:43:13
Additional Information
Earth MOID
= 1.06833 au
Jupiter MOID
= 1.90209 au
T_jup
= 3.374
[ hide covariance matrix ]
Orbital Elements at Epoch 2457185.5 (2015-Jun-12.0) TDB
Reference:
JPL 13
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1935545841356323
7.4774e-08
q
2.066802746788849
1.9918e-07
au
t
p
2457931.207006144610
(2017-Jun-26.70700614)
8.8289e-05
TDB
node
4.153798442767144
2.6939e-05
deg
peri
177.8688352324644
3.3285e-05
deg
i
12.73190375771084
7.414e-06
deg
Orbit Determination Parameters
# obs. used (total)
339
data-arc span
6799 days (18.61 yr)
first obs. used
2001-03-18
last obs. used
2019-10-29
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.53848
source
ORB
producer
Otto Matic
solution date
2019-Nov-07 23:43:13
Additional Information
Jupiter MOID
= 1.90209 au
T_jup
= 3.374
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
5.591139287807389E-15
-1.486104260424338E-14
-4.021602011084872E-12
-4.675990546217264E-14
-7.831001920646014E-13
-1.86507515204233E-14
q
-1.486104260424338E-14
3.967100318850772E-14
1.12161307580874E-11
1.219586060019477E-13
2.185005039114312E-12
5.185639024462856E-14
tp
-4.021602011084872E-12
1.12161307580874E-11
7.794995640463387E-9
5.029021367847459E-11
1.744339385363052E-9
2.042205876391168E-11
node
-4.675990546217264E-14
1.219586060019477E-13
5.029021367847459E-11
7.25683884035986E-10
-6.964822041521241E-10
-8.258183009962743E-11
peri
-7.831001920646014E-13
2.185005039114312E-12
1.744339385363052E-9
-6.964822041521241E-10
1.107867970305932E-9
8.485202142839537E-11
i
-1.86507515204233E-14
5.185639024462856E-14
2.042205876391168E-11
-8.258183009962743E-11
8.485202142839537E-11
5.496685710159649E-11
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.2
n/a
MPO454522
diameter
diameter
3.548
km
0.804
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.051
0.037
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
212102 (2005 EH154)
Discovered 2005-Mar-08 by Mt. Lemmon Survey at Mount Lemmon
Reference:
20090409/Numbers.arc
Last Updated:
2009-04-10
[ show close-approach data ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-10 19:05 UT
(server date/time)
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Ryan S. Park
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