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JPL Small-Body Database Browser
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74374 (1998 XN4)
Classification:
Main-belt Asteroid
SPK-ID:
2074374
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ 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
.09863222769116203
3.6214e-08
a
2.658496401571569
1.3585e-08
au
q
2.396282979175627
1.0019e-07
au
i
3.058447834899611
3.9463e-06
deg
node
100.1194238582761
8.4722e-05
deg
peri
310.1401087723785
8.8207e-05
deg
M
255.966868889092
2.5043e-05
deg
t
p
2459058.032249518459
(2020-Jul-27.53224952)
0.0001112
TDB
period
1583.261102187233
4.33
1.2135e-05
3.322e-08
d
yr
n
.2273787939984565
1.7428e-09
deg/d
Q
2.920709823967511
1.4924e-08
au
Orbit Determination Parameters
# obs. used (total)
906
data-arc span
7661 days (20.97 yr)
first obs. used
1998-11-11
last obs. used
2019-11-02
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.54491
source
ORB
producer
Otto Matic
solution date
2019-Dec-04 06:46:22
Additional Information
Earth MOID
= 1.40773 au
Jupiter MOID
= 2.39027 au
T_jup
= 3.378
[ 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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Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.0
n/a
MPO417339
diameter
diameter
3.665
km
0.773
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.173
0.051
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
74374 (1998 XN4)
Discovered 1998-Dec-09 by Korlevic, K. at Visnjan
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
[ show close-approach data ]
Alternate Designations
1998 XN4
= 2002 RM19
[
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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Close-Approach Data
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2019-Dec-11 15:32 UT
(server date/time)
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Ryan S. Park
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