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JPL Small-Body Database Browser
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74731 (1999 RM176)
Classification:
Main-belt Asteroid
SPK-ID:
2074731
[
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 23
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1471551432551308
5.0447e-08
a
2.175416085458392
7.0344e-09
au
q
1.855292419763246
1.1123e-07
au
i
3.169738552291417
5.5684e-06
deg
node
328.0121991495085
6.164e-05
deg
peri
345.913504333581
6.2984e-05
deg
M
70.41568837003933
1.2305e-05
deg
t
p
2458371.266091911318
(2018-Sep-09.76609191)
4.0018e-05
TDB
period
1171.957681905415
3.21
5.6844e-06
1.556e-08
d
yr
n
.307178326963733
1.4899e-09
deg/d
Q
2.495539751153537
8.0695e-09
au
Orbit Determination Parameters
# obs. used (total)
773
data-arc span
7381 days (20.21 yr)
first obs. used
1999-08-12
last obs. used
2019-10-27
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.56118
source
ORB
producer
Otto Matic
solution date
2019-Nov-07 08:56:02
Additional Information
Earth MOID
= .840752 au
Jupiter MOID
= 2.75518 au
T_jup
= 3.669
[ 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
16.1
n/a
MPO453160
diameter
diameter
1.951
km
0.262
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.168
0.054
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
74731 (1999 RM176)
Discovered 1999-Sep-09 by LINEAR at Socorro
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
Alternate Designations
1999 RM176
= 1999 RD256
[
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-07 19:33 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
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