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JPL Small-Body Database Browser
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85668 (1998 QH53)
Classification:
Main-belt Asteroid
SPK-ID:
2085668
[
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 20
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.3079990673859426
3.5444e-08
a
2.608668634592365
7.6934e-09
au
q
1.805201128018956
9.2732e-08
au
i
3.555855738936412
3.7981e-06
deg
node
295.7539890791821
7.0986e-05
deg
peri
80.67703514974176
7.1429e-05
deg
M
314.6531850254804
5.6757e-06
deg
t
p
2458794.352358727549
(2019-Nov-06.85235873)
2.426e-05
TDB
period
1538.958120457435
4.21
6.808e-06
1.864e-08
d
yr
n
.2339244942500416
1.0348e-09
deg/d
Q
3.412136141165774
1.0063e-08
au
Orbit Determination Parameters
# obs. used (total)
812
data-arc span
7769 days (21.27 yr)
first obs. used
1998-08-20
last obs. used
2019-11-27
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.50018
source
ORB
producer
Otto Matic
solution date
2019-Dec-04 08:18:19
Additional Information
Earth MOID
= .810076 au
Jupiter MOID
= 2.07883 au
T_jup
= 3.339
[ hide covariance matrix ]
Orbital Elements at Epoch 2456970.5 (2014-Nov-09.0) TDB
Reference:
JPL 20
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.3108574248729111
3.5816e-08
q
1.796492945586349
9.4073e-08
au
t
p
2457251.985597773349
(2015-Aug-17.48559777)
2.3644e-05
TDB
node
296.3414412966027
7.1119e-05
deg
peri
79.56543387504125
7.1527e-05
deg
i
3.554947582023588
3.7967e-06
deg
Orbit Determination Parameters
# obs. used (total)
812
data-arc span
7769 days (21.27 yr)
first obs. used
1998-08-20
last obs. used
2019-11-27
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.50018
source
ORB
producer
Otto Matic
solution date
2019-Dec-04 08:18:19
Additional Information
Jupiter MOID
= 2.07883 au
T_jup
= 3.339
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
1.282763289339915E-15
-3.364308165696561E-15
5.067815565528611E-15
1.15541462180098E-14
-2.186813150075977E-14
-2.137327932926445E-15
q
-3.364308165696561E-15
8.849773920022522E-15
-3.536955850401482E-14
-3.010163552930205E-14
4.873127648533961E-14
6.007201352243853E-15
tp
5.067815565528611E-15
-3.536955850401482E-14
5.590590760996354E-10
-1.143174364858716E-11
1.96345568630268E-10
2.823700027085325E-13
node
1.15541462180098E-14
-3.010163552930205E-14
-1.143174364858716E-11
5.057975649299977E-9
-5.051762066453764E-9
-1.588402443807475E-12
peri
-2.186813150075977E-14
4.873127648533961E-14
1.96345568630268E-10
-5.051762066453764E-9
5.116051025168201E-9
1.606811373610535E-12
i
-2.137327932926445E-15
6.007201352243853E-15
2.823700027085325E-13
-1.588402443807475E-12
1.606811373610535E-12
1.441465398944218E-11
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
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Discovery Circumstances
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.5
n/a
MPO449532
85668 (1998 QH53)
Discovered 1998-Aug-20 by LONEOS at Anderson Mesa
Reference:
20040830/Numbers.arc
Last Updated:
2004-09-06
Alternate Designations
1998 QH53
= 2000 DY50
[
Ephemeris
|
Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
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Discovery Circumstances
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2019-Dec-06 00:48 UT
(server date/time)
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