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136823 (1997 QR)
Classification: Main-belt Asteroid          SPK-ID: 2136823
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2734426351290244 3.7779e-08  
a 2.618299806972837 1.4271e-08 au
q 1.902345008196368 1.0344e-07 au
i 4.389433964004875 4.0862e-06 deg
node 280.7166858346035 6.1522e-05 deg
peri 112.428459723578 6.2699e-05 deg
M 104.3252467770496 1.2167e-05 deg
tp 2458552.049608636397
(2019-Mar-09.54960864)
4.9647e-05 TDB
period 1547.488703630007
4.24
1.2652e-05
3.464e-08
d
yr
n .2326349776612478 1.9019e-09 deg/d
Q 3.334254605749305 1.8173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      559  
   data-arc span      8275 days (22.66 yr)  
   first obs. used      1997-08-26  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:41:25  

Additional Information
 Earth MOID = .913965 au 
 Jupiter MOID = 2.13734 au 
 T_jup = 3.348 
[ 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 16.1   n/a MPO449766  

136823 (1997 QR)          Discovered 1997-Aug-26 by Sarounova, L. at Ondrejov
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

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