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JPL Small-Body Database Browser
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74506 (1999 EJ4)
Classification:
Main-belt Asteroid
SPK-ID:
2074506
[
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 14
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1760501691235364
4.0933e-08
a
2.817511524922168
1.6072e-08
au
q
2.321488144452108
1.1528e-07
au
i
4.600425558937479
4.9118e-06
deg
node
351.9870483009209
5.7476e-05
deg
peri
69.00938846895112
5.9079e-05
deg
M
182.8324054489001
1.36e-05
deg
t
p
2459450.617128431985
(2021-Aug-24.11712843)
6.7772e-05
TDB
period
1727.416162142699
4.73
1.478e-05
4.047e-08
d
yr
n
.2084037465259405
1.7832e-09
deg/d
Q
3.313534905392229
1.8901e-08
au
Orbit Determination Parameters
# obs. used (total)
975
data-arc span
7827 days (21.43 yr)
first obs. used
1997-11-30
last obs. used
2019-05-06
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.55873
source
ORB
producer
Otto Matic
solution date
2019-May-30 05:41:35
Additional Information
Earth MOID
= 1.33862 au
Jupiter MOID
= 2.04867 au
T_jup
= 3.291
[ 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
14.3
n/a
MPO347992
74506 (1999 EJ4)
Discovered 1999-Mar-12 by Spacewatch at Kitt Peak
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
Alternate Designations
1999 EJ4
= 2001 OU45
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
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Discovery Circumstances
]
2019-Dec-11 19:57 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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