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JPL Small-Body Database Browser
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117146 (2004 PB91)
Classification:
Main-belt Asteroid
SPK-ID:
2117146
[
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 16
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2756142042225955
5.4478e-08
a
2.617568287257129
2.1559e-08
au
q
1.896129286766453
1.4243e-07
au
i
3.360534695842639
6.4937e-06
deg
node
157.8322694961768
8.3505e-05
deg
peri
224.1065068929546
8.4268e-05
deg
M
161.273784687062
1.8675e-05
deg
t
p
2457907.542284623001
(2017-Jun-03.04228462)
7.3167e-05
TDB
period
1546.840225891546
4.24
1.9111e-05
5.232e-08
d
yr
n
.232732504607907
2.8753e-09
deg/d
Q
3.339007287747805
2.7502e-08
au
Orbit Determination Parameters
# obs. used (total)
644
data-arc span
11519 days (31.54 yr)
first obs. used
1987-10-23
last obs. used
2019-05-07
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.5858
source
ORB
producer
Otto Matic
solution date
2019-May-30 06:54:27
Additional Information
Earth MOID
= .900077 au
Jupiter MOID
= 2.1182 au
T_jup
= 3.349
[ 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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Discovery Circumstances
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Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.3
n/a
MPO236845
diameter
diameter
5.945
km
0.454
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.035
0.008
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
117146 (2004 PB91)
Discovered 2004-Aug-10 by LINEAR at Socorro
Reference:
20051019/Numbers.arc
Last Updated:
2005-10-26
[ show close-approach data ]
Alternate Designations
2004 PB91
= 1987 UK8
[
Ephemeris
|
Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-13 06:22 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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Alan B. Chamberlin