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JPL Small-Body Database Browser
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109923 (2001 SF31)
Classification:
Main-belt Asteroid
SPK-ID:
2109923
[
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
.1090810093817762
3.8099e-08
a
3.077289533170733
2.3918e-08
au
q
2.741615684732495
1.2037e-07
au
i
11.28579002137262
5.5726e-06
deg
node
175.4140584256375
2.5667e-05
deg
peri
131.4912181038426
3.996e-05
deg
M
145.0759478190461
2.8767e-05
deg
t
p
2457805.908559916712
(2017-Feb-21.40855992)
0.00015813
TDB
period
1971.745990498568
5.40
2.2988e-05
6.294e-08
d
yr
n
.1825792986189727
2.1287e-09
deg/d
Q
3.412963381608972
2.6527e-08
au
Orbit Determination Parameters
# obs. used (total)
561
data-arc span
8396 days (22.99 yr)
first obs. used
1996-11-07
last obs. used
2019-11-03
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.60291
source
ORB
producer
Otto Matic
solution date
2019-Dec-04 10:18:38
Additional Information
Earth MOID
= 1.74238 au
Jupiter MOID
= 1.96006 au
T_jup
= 3.190
[ show covariance matrix ]
[
Ephemeris
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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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Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
14.9
n/a
MPO338043
diameter
diameter
3.574
km
1.349
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.182
0.094
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
109923 (2001 SF31)
Discovered 2001-Sep-16 by LINEAR at Socorro
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
|
Mission Design
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Physical Parameters
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Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-10 07:58 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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Alan B. Chamberlin