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JPL Small-Body Database Browser
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441445 (2008 HY54)
Classification:
Main-belt Asteroid
SPK-ID:
2441445
[
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 9
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1836743250268552
7.5106e-08
a
2.20177248766894
2.8972e-08
au
q
1.797363412133647
1.7289e-07
au
i
4.085486745163243
8.233e-06
deg
node
97.13224041786425
0.00011248
deg
peri
81.02884503481572
0.00011818
deg
M
167.6543877779523
5.0882e-05
deg
t
p
2458044.762745502600
(2017-Oct-18.26274550)
0.00015927
TDB
period
1193.320462832373
3.27
2.3553e-05
6.448e-08
d
yr
n
.3016792313655059
5.9544e-09
deg/d
Q
2.606181563204232
3.4293e-08
au
Orbit Determination Parameters
# obs. used (total)
67
data-arc span
6855 days (18.77 yr)
first obs. used
2001-01-21
last obs. used
2019-10-29
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.56281
source
ORB
producer
Otto Matic
solution date
2019-Nov-08 15:56:48
Additional Information
Earth MOID
= .807189 au
Jupiter MOID
= 2.36161 au
T_jup
= 3.639
[ hide covariance matrix ]
Orbital Elements at Epoch 2457228.5 (2015-Jul-25.0) TDB
Reference:
JPL 9
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1833928145967003
7.5218e-08
q
1.798494173983049
1.7314e-07
au
t
p
2456850.973922820900
(2014-Jul-12.47392282)
0.00013991
TDB
node
97.15332557835869
0.00011251
deg
peri
81.04124596431724
0.00011821
deg
i
4.084762358795917
8.2309e-06
deg
Orbit Determination Parameters
# obs. used (total)
67
data-arc span
6855 days (18.77 yr)
first obs. used
2001-01-21
last obs. used
2019-10-29
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.56281
source
ORB
producer
Otto Matic
solution date
2019-Nov-08 15:56:48
Additional Information
Jupiter MOID
= 2.36161 au
T_jup
= 3.639
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
5.657747271060245E-15
-1.290859576125207E-14
-2.664681011200144E-12
-4.297648965817364E-14
-7.684087003271681E-13
2.753685243050243E-15
q
-1.290859576125207E-14
2.997894329650862E-14
8.510007300256117E-12
1.285690751298973E-13
2.379128682686651E-12
-4.807802609844365E-15
tp
-2.664681011200144E-12
8.510007300256117E-12
1.957460494130311E-8
2.141033366768231E-10
5.140823633185171E-9
3.980228875544529E-12
node
-4.297648965817364E-14
1.285690751298973E-13
2.141033366768231E-10
1.265857238360607E-8
-1.256728884187391E-8
1.732024132035245E-10
peri
-7.684087003271681E-13
2.379128682686651E-12
5.140823633185171E-9
-1.256728884187391E-8
1.397465347057367E-8
-1.717237258601102E-10
i
2.753685243050243E-15
-4.807802609844365E-15
3.980228875544529E-12
1.732024132035245E-10
-1.717237258601102E-10
6.774833936806093E-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
18.3
n/a
MPO342799
441445 (2008 HY54)
Discovered 2008-Apr-29 by Spacewatch at Kitt Peak
Reference:
Last Updated:
2015-09-02
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
2019-Dec-07 07:38 UT
(server date/time)
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Ryan S. Park
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