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2650 Elinor (1931 EG)
Classification:
Main-belt Asteroid
SPK-ID:
2002650
[
Ephemeris
|
Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference:
JPL 40
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1971177865776889
4.4641e-08
a
2.636778858409367
1.1687e-08
au
q
2.117022846144867
1.1729e-07
au
i
13.92030144677595
5.2533e-06
deg
node
332.3436710175635
1.7513e-05
deg
peri
23.6517146888595
2.116e-05
deg
M
100.9189172214894
1.3522e-05
deg
t
p
2458562.091394649501
(2019-Mar-19.59139465)
5.7827e-05
TDB
period
1563.900032535947
4.28
1.0398e-05
2.847e-08
d
yr
n
.230193741614188
1.5305e-09
deg/d
Q
3.156534870673867
1.3991e-08
au
Orbit Determination Parameters
# obs. used (total)
2151
data-arc span
32772 days (89.72 yr)
first obs. used
1931-02-25
last obs. used
2020-11-16
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.38882
source
ORB
producer
Otto Matic
solution date
2020-Dec-18 02:07:34
Additional Information
Earth MOID
= 1.11805 au
Jupiter MOID
= 2.29879 au
T_jup
= 3.328
[ show covariance matrix ]
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Orbit Diagram
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Orbital Elements
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Physical Parameters
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Close-Approach Data
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
11.1
n/a
MPO416736
diameter
diameter
12.538
km
0.641
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)
rotation period
rot_per
2.762
h
n/a
LCDB (Rev. 2020-October); Warner et al., 2009
Published Reference List:
[Pligge, Z.; Hall, B.; Ditteon, R. (2011) Minor Planet Bull. 38, 137-138.]
[Stephens, R.D. (2011) Minor Planet Bull. 38, 23-24.]
geometric albedo
albedo
0.238
0.039
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)
2650 Elinor (1931 EG)
Discovered 1931-Mar-14 by Wolf, M. at Heidelberg
Reference:
DISCOVERY.DB
Last Updated:
2003-08-29
[ show close-approach data ]
Alternate Designations
1931 EG
= 1931 DF = 1933 SX = 1937 PJ = 1950 RJ1 = 1950 RN = 1950 SO = 1950 TQ4 = 1954 NG = 1978 EF6
[
Ephemeris
|
Orbit Diagram
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Orbital Elements
|
Mission Design
|
Physical Parameters
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Discovery Circumstances
|
Close-Approach Data
]
2021-Jan-19 07:18 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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