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JPL Small-Body Database Browser
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173710 (2001 QU121)
Classification:
Main-belt Asteroid
SPK-ID:
2173710
[
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 14
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.10856108681923
7.4955e-08
a
2.774077716914439
2.7416e-08
au
q
2.472920825045199
2.0979e-07
au
i
6.361746927655667
8.7628e-06
deg
node
350.8617291472546
4.8575e-05
deg
peri
17.06463984889204
5.7462e-05
deg
M
265.5048095309314
2.9847e-05
deg
t
p
2459043.479436762707
(2020-Jul-12.97943676)
0.00014213
TDB
period
1687.626602401263
4.62
2.5018e-05
6.85e-08
d
yr
n
.2133173294896923
3.1624e-09
deg/d
Q
3.075234608783679
3.0393e-08
au
Orbit Determination Parameters
# obs. used (total)
310
data-arc span
6100 days (16.70 yr)
first obs. used
2001-08-10
last obs. used
2018-04-23
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.56229
source
ORB
producer
Otto Matic
solution date
2018-May-07 05:53:12
Additional Information
Earth MOID
= 1.47134 au
Jupiter MOID
= 2.38045 au
T_jup
= 3.318
[ show covariance matrix ]
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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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
MPO436862
173710 (2001 QU121)
Discovered 2001-Aug-19 by LINEAR at Socorro
Reference:
20080122/Numbers.arc
Last Updated:
2008-01-28
[ show close-approach data ]
[
Ephemeris
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Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-14 00:16 UT
(server date/time)
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