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JPL Small-Body Database Browser
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74187 (1998 RZ40)
Classification:
Main-belt Asteroid
SPK-ID:
2074187
[
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 21
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1017244275523501
6.6384e-08
a
2.531829840702856
1.2055e-08
au
q
2.274280899497401
1.7032e-07
au
i
2.493160521447769
6.8417e-06
deg
node
354.4774978716836
8.1238e-05
deg
peri
326.0797939667672
8.5815e-05
deg
M
68.05737223388833
2.4736e-05
deg
t
p
2458322.321940034038
(2018-Jul-22.82194003)
0.00010096
TDB
period
1471.465886804849
4.03
1.0509e-05
2.877e-08
d
yr
n
.2446539897582719
1.7473e-09
deg/d
Q
2.789378781908312
1.3281e-08
au
Orbit Determination Parameters
# obs. used (total)
750
data-arc span
7756 days (21.23 yr)
first obs. used
1998-09-12
last obs. used
2019-12-07
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.53753
source
ORB
producer
Otto Matic
solution date
2019-Dec-14 07:24:51
Additional Information
Earth MOID
= 1.26112 au
Jupiter MOID
= 2.46204 au
T_jup
= 3.442
[ 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
15.5
n/a
MPO453154
diameter
diameter
2.000
km
0.404
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.254
0.107
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
74187 (1998 RZ40)
Discovered 1998-Sep-14 by LINEAR at Socorro
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
Alternate Designations
1998 RZ40
= 2001 HN43
[
Ephemeris
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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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2019-Dec-15 18:39 UT
(server date/time)
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Ryan S. Park
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