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JPL Small-Body Database Browser
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305318 (2008 AU54)
Classification:
Main-belt Asteroid
SPK-ID:
2305318
[
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 9
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.01457269032819818
8.6889e-08
a
3.091280096720114
4.0792e-08
au
q
3.046231829152889
2.7228e-07
au
i
8.998951960863124
7.6138e-06
deg
node
305.3260575915391
4.2665e-05
deg
peri
239.8904152352633
0.00024206
deg
M
324.4679175211927
0.0002416
deg
t
p
2458796.440460399317
(2019-Nov-08.94046040)
0.0013327
TDB
period
1985.207756562708
5.44
3.9295e-05
1.076e-07
d
yr
n
.181341221748661
3.5894e-09
deg/d
Q
3.136328364287339
4.1387e-08
au
Orbit Determination Parameters
# obs. used (total)
282
data-arc span
6730 days (18.43 yr)
first obs. used
2000-09-23
last obs. used
2019-02-26
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.55501
source
ORB
producer
Otto Matic
solution date
2019-Jul-14 10:18:57
Additional Information
Earth MOID
= 2.06253 au
Jupiter MOID
= 1.90971 au
T_jup
= 3.206
[ hide covariance matrix ]
Orbital Elements at Epoch 2457026.5 (2015-Jan-04.0) TDB
Reference:
JPL 9
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.01490380676591963
8.8779e-08
q
3.044847285537093
2.7811e-07
au
t
p
2456784.468192922893
(2014-May-06.96819292)
0.0012377
TDB
node
305.3534058693032
4.2668e-05
deg
peri
235.1762472281754
0.00022614
deg
i
8.998906951141958
7.6137e-06
deg
Orbit Determination Parameters
# obs. used (total)
282
data-arc span
6730 days (18.43 yr)
first obs. used
2000-09-23
last obs. used
2019-02-26
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.55501
source
ORB
producer
Otto Matic
solution date
2019-Jul-14 10:18:57
Additional Information
Jupiter MOID
= 1.90971 au
T_jup
= 3.206
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
7.88170717768089E-15
-2.44335159382894E-14
-4.141958999321697E-11
1.904083462548573E-14
-7.183622911489381E-12
1.014501103824075E-14
q
-2.44335159382894E-14
7.734403019920393E-14
1.319744043868898E-10
-5.158498088067061E-14
2.294399166807374E-11
-2.937738132639359E-14
tp
-4.141958999321697E-11
1.319744043868898E-10
1.531973880416006E-6
3.163868704885636E-10
2.749083171210684E-7
9.152107766797276E-11
node
1.904083462548573E-14
-5.158498088067061E-14
3.163868704885636E-10
1.820519442940266E-9
-1.739322740393233E-9
9.953211738678608E-11
peri
-7.183622911489381E-12
2.294399166807374E-11
2.749083171210684E-7
-1.739322740393233E-9
5.113880405739742E-8
-8.12719786152326E-11
i
1.014501103824075E-14
-2.937738132639359E-14
9.152107766797276E-11
9.953211738678608E-11
-8.12719786152326E-11
5.796910527561985E-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
15.5
n/a
MPO433967
305318 (2008 AU54)
Discovered 2008-Jan-11 by Spacewatch at Kitt Peak
Reference:
20111110/Numbers.arc
Last Updated:
2011-11-14
[ show close-approach data ]
Alternate Designations
2008 AU54
= 2003 EJ7
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-16 13:19 UT
(server date/time)
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Ryan S. Park
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