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100966 (1998 QP18)
Classification: Main-belt Asteroid          SPK-ID: 2100966
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 .2079779939989467 4.0724e-08  
a 2.384464042344126 8.65e-09 au
q 1.888547994054776 9.7578e-08 au
i 8.68230387268315 4.1161e-06 deg
node 152.5847984390468 2.1996e-05 deg
peri 166.674504253646 2.409e-05 deg
M 335.9710453987776 7.6691e-06 deg
tp 2459090.267053353956
(2020-Aug-28.76705335)
2.8509e-05 TDB
period 1344.883277018647
3.68
7.3182e-06
2.004e-08
d
yr
n .2676812227140278 1.4566e-09 deg/d
Q 2.880380090633477 1.0449e-08 au
  Orbit Determination Parameters
   # obs. used (total)      651  
   data-arc span      8101 days (22.18 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49846  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:13  

Additional Information
 Earth MOID = .877006 au 
 Jupiter MOID = 2.4522 au 
 T_jup = 3.491 
[ 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   n/a MPO432537  

100966 (1998 QP18)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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