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20938 (1075 T-2)
Classification:
Main-belt Asteroid
SPK-ID:
2020938
[
Ephemeris
|
Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
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Discovery Circumstances
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[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference:
JPL 20
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1745214755500575
2.7368e-08
a
2.231973291250817
6.4816e-09
au
q
1.842446019073406
6.1632e-08
au
i
7.503482369208781
4.4167e-06
deg
node
350.6151002101067
2.4309e-05
deg
peri
271.7738188115383
2.7374e-05
deg
M
78.19922458615595
1.3163e-05
deg
t
p
2458735.935320981161
(2019-Sep-09.43532098)
4.4406e-05
TDB
period
1217.95689088768
3.33
5.3054e-06
1.453e-08
d
yr
n
.2955769639249072
1.2875e-09
deg/d
Q
2.621500563428227
7.6128e-09
au
Orbit Determination Parameters
# obs. used (total)
1097
data-arc span
17225 days (47.16 yr)
first obs. used
1973-09-19
last obs. used
2020-11-16
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.54533
source
ORB
producer
Otto Matic
solution date
2020-Dec-18 03:15:15
Additional Information
Earth MOID
= .845972 au
Jupiter MOID
= 2.4958 au
T_jup
= 3.610
[ show covariance matrix ]
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.6
n/a
MPO279732
diameter
diameter
2.589
km
0.278
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)
geometric albedo
albedo
0.166
0.043
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)
20938 (1075 T-2)
Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference:
20010109/Numbers.arc
Last Updated:
2004-04-19
Alternate Designations
1075 T-2
= 1993 RL17 = 1999 GP60
[
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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2021-Jan-19 19:42 UT
(server date/time)
Site Manager:
Ryan S. Park
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