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52647 (1997 YD4)
Classification: Main-belt Asteroid          SPK-ID: 2052647
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06765022765921887 4.1945e-08  
a 2.936204424689434 2.0952e-08 au
q 2.737569526905188 1.2346e-07 au
i 3.581802935491703 5.0036e-06 deg
node 115.75731167 9.7601e-05 deg
peri 309.6063828600203 0.00010934 deg
M 231.0508254659625 5.1305e-05 deg
tp 2459858.754634740187
(2022-Oct-06.25463474)
0.00026443 TDB
period 1837.713729946493
5.03
1.967e-05
5.385e-08
d
yr
n .1958955816314666 2.0968e-09 deg/d
Q 3.13483932247368 2.237e-08 au
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      8242 days (22.57 yr)  
   first obs. used      1997-12-23  
   last obs. used      2020-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54699  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:46:44  

Additional Information
 Earth MOID = 1.75236 au 
 Jupiter MOID = 2.06863 au 
 T_jup = 3.268 
[ 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 14.37   n/a E2021B10  

52647 (1997 YD4)          Discovered 1997-Dec-23 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 YD4 = 1999 FE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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