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187768 (1998 QM72)
Classification: Main-belt Asteroid          SPK-ID: 2187768
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1655299368847974 4.9288e-08  
a 3.131390564156793 2.2208e-08 au
q 2.613051681710269 1.6402e-07 au
i 12.0655243921995 4.2464e-06 deg
node 218.4605544725375 1.9648e-05 deg
peri 134.5142722303608 2.5113e-05 deg
M 4.933615342163209 1.2433e-05 deg
tp 2459172.762515667795
(2020-Nov-19.26251567)
6.9947e-05 TDB
period 2023.970996331333
5.54
2.1531e-05
5.895e-08
d
yr
n .1778681614768883 1.8922e-09 deg/d
Q 3.649729446603317 2.5884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      749  
   data-arc span      8146 days (22.30 yr)  
   first obs. used      1998-08-19  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43693  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:45  

Additional Information
 Earth MOID = 1.62433 au 
 Jupiter MOID = 1.92375 au 
 T_jup = 3.158 
[ 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 14.98   n/a E2021B55  

187768 (1998 QM72)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

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