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100973 (1998 QZ23)
Classification: Main-belt Asteroid          SPK-ID: 2100973
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 .2143411867051664 4.3467e-08  
a 2.708735499742719 1.3931e-08 au
q 2.128141918257453 1.2037e-07 au
i 7.729028220798184 4.6332e-06 deg
node 183.0126278742914 3.2794e-05 deg
peri 203.1402043193699 3.4451e-05 deg
M 327.9909460823135 1.2216e-05 deg
tp 2459345.283364080439
(2021-May-10.78336408)
5.5853e-05 TDB
period 1628.352128213263
4.46
1.2562e-05
3.439e-08
d
yr
n .2210824021184018 1.7056e-09 deg/d
Q 3.289329081227985 1.6917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      561  
   data-arc span      8127 days (22.25 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61655  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:28:40  

Additional Information
 Earth MOID = 1.13306 au 
 Jupiter MOID = 2.17057 au 
 T_jup = 3.318 
[ 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 15.68   n/a E2021B55  

100973 (1998 QZ23)          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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