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523944 (1998 QZ111)
Classification: Main-belt Asteroid          SPK-ID: 2523944
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1462998068276333 4.48e-08  
a 3.162691642695504 3.5716e-08 au
q 2.699990466313781 1.4176e-07 au
i 1.008359286042736 5.9073e-06 deg
node 120.1400354789692 0.00031052 deg
peri 146.8325168251164 0.00031185 deg
M 23.29048841519975 2.5036e-05 deg
tp 2458867.589344897303
(2020-Jan-19.08934490)
0.00014327 TDB
period 2054.393835972305
5.62
3.48e-05
9.528e-08
d
yr
n .1752341706329249 2.9684e-09 deg/d
Q 3.625392819077226 4.0941e-08 au
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      8087 days (22.14 yr)  
   first obs. used      1998-08-30  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50191  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:41:04  

Additional Information
 Earth MOID = 1.68411 au 
 Jupiter MOID = 1.46219 au 
 T_jup = 3.187 
[ 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 16.2   .21666 MPO457202 autocmod 2.6q

523944 (1998 QZ111)          Discovered 1998-Aug-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-05-29

[ show close-approach data ]
Alternate Designations
 1998 QZ111 = 2015 RQ69 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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