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JPL Small-Body Database Browser
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85358 (1995 WJ12)
Classification:
Main-belt Asteroid
SPK-ID:
2085358
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference:
JPL 18
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.09591037408231134
6.0449e-08
a
2.431853339483804
1.792e-08
au
q
2.198613375980595
1.4449e-07
au
i
7.787422263976563
4.4604e-06
deg
node
93.77482642006193
4.4754e-05
deg
peri
113.6641618894872
4.9664e-05
deg
M
279.642923290741
2.1841e-05
deg
t
p
2458909.690488357156
(2020-Mar-01.19048836)
8.4084e-05
TDB
period
1385.174528079253
3.79
1.531e-05
4.192e-08
d
yr
n
.25989504766536
2.8726e-09
deg/d
Q
2.665093302987013
1.9638e-08
au
Orbit Determination Parameters
# obs. used (total)
448
data-arc span
8454 days (23.15 yr)
first obs. used
1995-11-16
last obs. used
2019-01-08
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.58239
source
ORB
producer
Otto Matic
solution date
2019-Jul-13 08:08:29
Additional Information
Earth MOID
= 1.20647 au
Jupiter MOID
= 2.32714 au
T_jup
= 3.488
[ hide covariance matrix ]
Orbital Elements at Epoch 2456847.5 (2014-Jul-09.0) TDB
Reference:
JPL 18
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.09667296568775841
6.0274e-08
q
2.196164496943826
1.4416e-07
au
t
p
2457524.829454460251
(2016-May-16.32945446)
8.446e-05
TDB
node
93.82043074239385
4.4736e-05
deg
peri
113.7867061482494
4.9592e-05
deg
i
7.789567899061812
4.4612e-06
deg
Orbit Determination Parameters
# obs. used (total)
448
data-arc span
8454 days (23.15 yr)
first obs. used
1995-11-16
last obs. used
2019-01-08
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.58239
source
ORB
producer
Otto Matic
solution date
2019-Jul-13 08:08:29
Additional Information
Jupiter MOID
= 2.32714 au
T_jup
= 3.488
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
3.632990519756402E-15
-8.636871806244942E-15
-7.040473467894463E-13
1.420620646208556E-14
-1.480051130019118E-13
-8.190380369030247E-15
q
-8.636871806244942E-15
2.078176785786952E-14
1.50800952939604E-12
-3.420470632670942E-14
2.814023083320156E-13
2.013128049817829E-14
tp
-7.040473467894463E-13
1.50800952939604E-12
7.133437001533359E-9
4.165549201862951E-11
1.85018775964401E-9
2.429190830977725E-12
node
1.420620646208556E-14
-3.420470632670942E-14
4.165549201862951E-11
2.001337902030147E-9
-1.971224235189125E-9
-4.845090405201538E-11
peri
-1.480051130019118E-13
2.814023083320156E-13
1.85018775964401E-9
-1.971224235189125E-9
2.459341845755352E-9
4.846810300277293E-11
i
-8.190380369030247E-15
2.013128049817829E-14
2.429190830977725E-12
-4.845090405201538E-11
4.846810300277293E-11
1.990249766099195E-11
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.0
n/a
MPO426528
85358 (1995 WJ12)
Discovered 1995-Nov-16 by Spacewatch at Kitt Peak
Reference:
20040830/Numbers.arc
Last Updated:
2004-09-06
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
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Discovery Circumstances
]
2019-Dec-16 05:01 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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Alan B. Chamberlin