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44042 (1998 ES9)
Classification: Main-belt Asteroid          SPK-ID: 2044042
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .205803103365576 4.9734e-08  
a 2.247501457081025 1.1567e-08 au
q 1.784958682395096 1.1593e-07 au
i 6.277651137988321 7.8568e-06 deg
node 170.6624518233647 4.8902e-05 deg
peri 110.1793269134461 5.4439e-05 deg
M 80.38454706985182 2.2535e-05 deg
tp 2457325.698899191982
(2015-Oct-30.19889919)
7.6027e-05 JED
period 1230.689229422671
3.37
9.5007e-06
2.601e-08
d
yr
n .2925190140559528 2.2582e-09 deg/d
Q 2.710044231766954 1.3947e-08 au
  Orbit Determination Parameters
   # obs. used (total)      570  
   data-arc span      10920 days (29.90 yr)  
   first obs. used      1985-07-20  
   last obs. used      2015-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58157  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 13:08:40  

Additional Information
 Earth MOID = .780473 au 
 Jupiter MOID = 2.45196 au 
 T_jup = 3.594 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8 mag n/a MPO337611  

44042 (1998 ES9)          Discovered 1998-Mar-02 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 ES9 = 1985 OG1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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