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JPL Small-Body Database Browser
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74504 (1999 DF7)
Classification:
Main-belt Asteroid
SPK-ID:
2074504
[
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 19
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1857229002059098
3.1953e-08
a
2.686587712601627
1.2782e-08
au
q
2.187626850959691
8.5367e-08
au
i
11.40912255833948
5.7763e-06
deg
node
42.36387553847126
2.2669e-05
deg
peri
72.64201691096034
2.9473e-05
deg
M
218.0204287216635
1.8318e-05
deg
t
p
2459234.841789085633
(2021-Jan-20.34178909)
8.3668e-05
TDB
period
1608.42184558471
4.40
1.1479e-05
3.143e-08
d
yr
n
.2238218791843934
1.5973e-09
deg/d
Q
3.185548574243562
1.5156e-08
au
Orbit Determination Parameters
# obs. used (total)
1025
data-arc span
9519 days (26.06 yr)
first obs. used
1993-10-09
last obs. used
2019-11-01
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.53749
source
ORB
producer
Otto Matic
solution date
2019-Nov-07 08:54:10
Additional Information
Earth MOID
= 1.23556 au
Jupiter MOID
= 2.05781 au
T_jup
= 3.321
[ show covariance matrix ]
[
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
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
14.8
n/a
MPO359267
diameter
diameter
6.139
km
0.198
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.068
0.007
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
74504 (1999 DF7)
Discovered 1999-Feb-18 by LONEOS at Anderson Mesa
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
[ show close-approach data ]
Alternate Designations
1999 DF7
= 1993 TM33
[
Ephemeris
|
Orbit Diagram
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Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-15 19:42 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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