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JPL Small-Body Database Browser
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74198 (1998 RA50)
Classification:
Main-belt Asteroid
SPK-ID:
2074198
[
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
.164113024849822
5.0196e-08
a
2.653094116502907
2.3878e-08
au
q
2.217686815832348
1.3944e-07
au
i
11.50662647773446
6.9943e-06
deg
node
9.596089105769243
2.7634e-05
deg
peri
258.8479991628822
3.6427e-05
deg
M
345.1762957169265
2.709e-05
deg
t
p
2458665.495255237846
(2019-Jun-30.99525524)
0.00011909
TDB
period
1578.437578004163
4.32
2.1309e-05
5.834e-08
d
yr
n
.2280736375113407
3.0791e-09
deg/d
Q
3.088501417173465
2.7797e-08
au
Orbit Determination Parameters
# obs. used (total)
494
data-arc span
7979 days (21.85 yr)
first obs. used
1997-04-01
last obs. used
2019-02-04
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.59346
source
ORB
producer
Otto Matic
solution date
2019-Jul-13 09:07:24
Additional Information
Earth MOID
= 1.23684 au
Jupiter MOID
= 2.11243 au
T_jup
= 3.342
[ show covariance matrix ]
[
Ephemeris
|
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
15.2
n/a
MPO436302
diameter
diameter
2.305
km
0.397
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.303
0.098
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
74198 (1998 RA50)
Discovered 1998-Sep-14 by LINEAR at Socorro
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
Alternate Designations
1998 RA50
= 2001 FH154
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
2019-Dec-07 02:18 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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