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JPL Small-Body Database Browser
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109517 (2001 QR238)
Classification:
Main-belt Asteroid
SPK-ID:
2109517
[
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 22
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1390690305483587
3.9583e-08
a
3.095420190582113
2.3418e-08
au
q
2.664943105538042
1.2492e-07
au
i
10.27266118679624
5.6012e-06
deg
node
350.8321127118991
2.401e-05
deg
peri
307.0393010915488
3.1197e-05
deg
M
134.7244968853106
1.8815e-05
deg
t
p
2457856.073348424625
(2017-Apr-12.57334842)
0.00010458
TDB
period
1989.197219235304
5.45
2.2574e-05
6.18e-08
d
yr
n
.1809775302915378
2.0538e-09
deg/d
Q
3.525897275626182
2.6675e-08
au
Orbit Determination Parameters
# obs. used (total)
832
data-arc span
6651 days (18.21 yr)
first obs. used
2001-08-24
last obs. used
2019-11-09
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.57558
source
ORB
producer
Otto Matic
solution date
2019-Dec-04 10:16:02
Additional Information
Earth MOID
= 1.66448 au
Jupiter MOID
= 1.82588 au
T_jup
= 3.184
[ show covariance matrix ]
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
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Physical Parameters
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Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
14.4
n/a
MPO341325
diameter
diameter
5.189
km
0.767
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.137
0.048
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
109517 (2001 QR238)
Discovered 2001-Aug-24 by LINEAR at Socorro
Reference:
20051019/Numbers.arc
Last Updated:
2005-10-26
[ show close-approach data ]
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Orbit Diagram
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Orbital Elements
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Mission Design
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Physical Parameters
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Close-Approach Data
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2019-Dec-07 09:18 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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Alan B. Chamberlin