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181802 (1998 QZ27)
Classification: Main-belt Asteroid          SPK-ID: 2181802
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1963116242470231 3.2999e-08  
a 3.106171103523738 1.9607e-08 au
q 2.496393609001825 9.9606e-08 au
i 9.013511411281986 4.9972e-06 deg
node 170.9999382817715 2.4229e-05 deg
peri 117.8685994226441 2.8331e-05 deg
M 69.31495817055635 1.3242e-05 deg
tp 2458815.499800673004
(2019-Nov-27.99980067)
7.2541e-05 TDB
period 1999.56943516693
5.47
1.8932e-05
5.183e-08
d
yr
n .1800387591791461 1.7046e-09 deg/d
Q 3.715948598045651 2.3456e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      8199 days (22.45 yr)  
   first obs. used      1998-08-26  
   last obs. used      2021-02-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50085  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:06  

Additional Information
 Earth MOID = 1.49431 au 
 Jupiter MOID = 1.60873 au 
 T_jup = 3.172 
[ 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 15.19   n/a MPCxxxxx  

181802 (1998 QZ27)          Discovered 1998-Aug-26 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 1998 QZ27 = 2003 MC5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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