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JPL Small-Body Database Browser
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379774 (2011 HE31)
Classification:
Main-belt Asteroid
SPK-ID:
2379774
[
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 21
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.09194855599918773
4.8695e-08
a
2.8085792569459
5.0576e-08
au
q
2.550334449860453
1.4831e-07
au
i
8.56211559364197
6.0634e-06
deg
node
198.9620059806887
3.833e-05
deg
peri
305.9603825131836
5.4517e-05
deg
M
304.2671507271992
4.0879e-05
deg
t
p
2458866.656574540517
(2020-Jan-18.15657454)
0.00019878
TDB
period
1719.208116663566
4.71
4.6438e-05
1.271e-07
d
yr
n
.209398732189937
5.6562e-09
deg/d
Q
3.066824064031347
5.5226e-08
au
Orbit Determination Parameters
# obs. used (total)
190
data-arc span
6484 days (17.75 yr)
first obs. used
2001-01-18
last obs. used
2018-10-20
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.55117
source
ORB
producer
Otto Matic
solution date
2018-Oct-31 05:07:13
Additional Information
Earth MOID
= 1.57281 au
Jupiter MOID
= 1.96723 au
T_jup
= 3.300
[ show covariance matrix ]
[
Ephemeris
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Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.0
n/a
MPO427887
379774 (2011 HE31)
Discovered 2011-Apr-06 by Spacewatch at Kitt Peak
Reference:
Last Updated:
2013-11-20
[ show close-approach data ]
[
Ephemeris
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Orbit Diagram
|
Orbital Elements
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Mission Design
|
Physical Parameters
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Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-16 13:22 UT
(server date/time)
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