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JPL Small-Body Database Browser
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109887 (2001 SW9)
Classification:
Main-belt Asteroid
SPK-ID:
2109887
[
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 20
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1669830607421152
3.9312e-08
a
2.76342645408709
1.3535e-08
au
q
2.301981046647897
1.0857e-07
au
i
9.612212944602597
4.4508e-06
deg
node
34.14873487377504
2.4054e-05
deg
peri
303.343045049099
2.7029e-05
deg
M
344.014476076004
1.1232e-05
deg
t
p
2458675.006586544157
(2019-Jul-10.50658654)
5.2397e-05
TDB
period
1677.916299986468
4.59
1.2327e-05
3.375e-08
d
yr
n
.2145518224019299
1.5763e-09
deg/d
Q
3.224871861526282
1.5795e-08
au
Orbit Determination Parameters
# obs. used (total)
794
data-arc span
6669 days (18.26 yr)
first obs. used
2001-08-22
last obs. used
2019-11-25
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.52596
source
ORB
producer
Otto Matic
solution date
2019-Dec-04 10:18:22
Additional Information
Earth MOID
= 1.30953 au
Jupiter MOID
= 2.2355 au
T_jup
= 3.300
[ 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
14.9
n/a
MPO432620
diameter
diameter
2.503
km
0.425
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.339
0.101
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
109887 (2001 SW9)
Discovered 2001-Sep-18 by Yeung, W. K. Y. at Desert Eagle
Reference:
20051019/Numbers.arc
Last Updated:
2005-10-26
[ show close-approach data ]
[
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
|
Close-Approach Data
]
2019-Dec-08 23:58 UT
(server date/time)
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Webmaster
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