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JPL Small-Body Database Browser
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109947 (2001 SM44)
Classification:
Main-belt Asteroid
SPK-ID:
2109947
[
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 9
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2062456819007809
5.6487e-08
a
2.447108482625127
1.6598e-08
au
q
1.942402924940922
1.402e-07
au
i
3.708998243562842
6.4337e-06
deg
node
117.4938581425043
9.161e-05
deg
peri
229.6318072860719
9.3703e-05
deg
M
225.1513213661676
2.6137e-05
deg
t
p
2459124.248093388546
(2020-Oct-01.74809339)
0.00010567
TDB
period
1398.228855707683
3.83
1.4226e-05
3.895e-08
d
yr
n
.2574685814346135
2.6196e-09
deg/d
Q
2.951814040309331
2.0022e-08
au
Orbit Determination Parameters
# obs. used (total)
381
data-arc span
9411 days (25.77 yr)
first obs. used
1993-07-19
last obs. used
2019-04-25
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.58019
source
ORB
producer
Otto Matic
solution date
2019-Jul-13 10:03:22
Additional Information
Earth MOID
= .936962 au
Jupiter MOID
= 2.46519 au
T_jup
= 3.466
[ show covariance matrix ]
[
Ephemeris
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Orbit Diagram
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Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.9
n/a
MPO432620
109947 (2001 SM44)
Discovered 2001-Sep-16 by LINEAR at Socorro
Reference:
20051019/Numbers.arc
Last Updated:
2005-10-26
[ show close-approach data ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-15 10:37 UT
(server date/time)
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Ryan S. Park
Webmaster
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