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187746 (1976 DC)
Classification: Mars-crossing Asteroid          SPK-ID: 2187746
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3442339236672337 8.0247e-08  
a 2.31438715885775 1.1612e-08 au
q 1.517696586279086 1.8929e-07 au
i 22.46652403811357 6.2884e-06 deg
node 317.4062904200388 1.4327e-05 deg
peri 223.9478085889206 1.9971e-05 deg
M 252.3249808731273 2.546e-05 deg
tp 2459585.149259051697
(2022-Jan-05.64925905)		 9.3002e-05 TDB
period 1286.033978739753
3.52		 9.6786e-06
2.65e-08		 d
yr
n .2799303952705677 2.1067e-09 deg/d
Q 3.111077731436415 1.5609e-08 au
   Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      16393 days (44.88 yr)  
   first obs. used      1976-02-27  
   last obs. used      2021-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .581  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:57:16  

Additional Information
 Earth MOID = .583063 au 
 Jupiter MOID = 2.08484 au 
 T_jup = 3.406 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO494035  

187746 (1976 DC)          Discovered 1976-Feb-27 by West, R. M. at La Silla
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

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Alternate Designations
 1976 DC = 1997 CQ4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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