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JPL Small-Body Database Browser
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13971 (1991 UF1)
Classification:
Main-belt Asteroid
SPK-ID:
2013971
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference:
JPL 24
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2103694851373881
5.5451e-08
a
2.377881840543562
8.5233e-09
au
q
1.877648062030868
1.2996e-07
au
i
3.40202857734842
4.9172e-06
deg
node
93.29246740554055
7.3566e-05
deg
peri
308.2956688108411
7.453e-05
deg
M
176.9575663015566
1.2814e-05
deg
t
p
2457942.159658658631
(2017-Jul-07.65965866)
4.5735e-05
TDB
period
1339.318390483583
3.67
7.201e-06
1.972e-08
d
yr
n
.2687934419163884
1.4452e-09
deg/d
Q
2.878115619056256
1.0316e-08
au
Orbit Determination Parameters
# obs. used (total)
1095
data-arc span
10166 days (27.83 yr)
first obs. used
1991-10-18
last obs. used
2019-08-18
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.52495
source
ORB
producer
Otto Matic
solution date
2019-Sep-24 01:16:27
Additional Information
Earth MOID
= .88794 au
Jupiter MOID
= 2.53054 au
T_jup
= 3.508
[ 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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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.1
n/a
MPO337376
13971 (1991 UF1)
Discovered 1991-Oct-18 by Ueda, S., Kaneda, H. at Kushiro
Reference:
20000320/Numbers.arc
Last Updated:
2004-04-19
Alternate Designations
1991 UF1
= 1993 FR31
[
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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2019-Dec-15 20:35 UT
(server date/time)
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