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19946 (1981 EB35)
Classification: Main-belt Asteroid          SPK-ID: 2019946
[ 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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04963893398575125 2.4278e-08  
a 2.267949464512103 6.4562e-09 au
q 2.155370870760167 5.6882e-08 au
i 5.619710786653021 3.7297e-06 deg
node 183.4957793517334 2.6971e-05 deg
peri 268.721260061823 4.8413e-05 deg
M 306.597480901296 4.0064e-05 deg
tp 2459385.557942743878
(2021-Jun-20.05794274)		 0.00013889 TDB
period 1247.522785669729
3.42		 5.327e-06
1.458e-08		 d
yr
n .2885718835241434 1.2322e-09 deg/d
Q 2.380528058264039 6.7767e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1671  
   data-arc span      14612 days (40.01 yr)  
   first obs. used      1981-02-09  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50606  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:09:58  

Additional Information
 Earth MOID = 1.18035 au 
 Jupiter MOID = 2.68847 au 
 T_jup = 3.607 
[ 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 15.17   n/a E2021B10  

19946 (1981 EB35)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1981 EB35 = 1998 FO19 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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