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JPL Small-Body Database Browser
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27678 (1981 EX3)
Classification:
Main-belt Asteroid
SPK-ID:
2027678
[
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 20
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.09623455612537447
3.6257e-08
a
2.746863578202769
1.4054e-08
au
q
2.482520381017468
9.921e-08
au
i
7.928708857528891
3.946e-06
deg
node
233.6964575217403
3.0885e-05
deg
peri
237.8532540748671
3.8369e-05
deg
M
189.8767255871088
2.3015e-05
deg
t
p
2459386.305918665742
(2021-Jun-20.80591867)
0.00010824
TDB
period
1662.853784680215
4.55
1.2762e-05
3.494e-08
d
yr
n
.2164952825778557
1.6615e-09
deg/d
Q
3.011206775388071
1.5407e-08
au
Orbit Determination Parameters
# obs. used (total)
1057
data-arc span
15506 days (42.45 yr)
first obs. used
1977-05-18
last obs. used
2019-10-31
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.52124
source
ORB
producer
Otto Matic
solution date
2019-Nov-07 05:01:22
Additional Information
Earth MOID
= 1.51013 au
Jupiter MOID
= 2.15585 au
T_jup
= 3.327
[ 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
14.5
n/a
MPO395272
diameter
diameter
4.337
km
0.316
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.196
0.068
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
27678 (1981 EX3)
Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference:
20010902/Numbers.arc
Last Updated:
2004-04-19
[
Ephemeris
|
Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
2019-Dec-15 18:35 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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Alan B. Chamberlin