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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04952253392520391 3.0262e-08  
a 2.268174146034095 8.3531e-09 au
q 2.155848414938851 6.75e-08 au
i 5.619365434396208 3.8998e-06 deg
node 183.4964436506037 3.417e-05 deg
peri 268.5923776220282 5.3482e-05 deg
M 249.001592203545 4.1577e-05 deg
tp 2459385.204502243816
(2021-Jun-19.70450224)		 0.0001444 TDB
period 1247.708174893271
3.42		 6.8925e-06
1.887e-08		 d
yr
n .2885290064167402 1.5939e-09 deg/d
Q 2.380499877129338 8.7667e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1295  
   data-arc span      14048 days (38.46 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54132  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:58:34  

Additional Information
 Earth MOID = 1.18109 au 
 Jupiter MOID = 2.68941 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 15.1   n/a MPO270276  

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

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