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100964 (1998 QL16)
Classification: Main-belt Asteroid          SPK-ID: 2100964
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1884998633199259 3.4643e-08  
a 2.689350312794258 1.1805e-08 au
q 2.18240814641314 9.7874e-08 au
i 12.23196984941067 3.532e-06 deg
node 168.3764070397832 1.4952e-05 deg
peri 205.7135603231539 1.7768e-05 deg
M 349.9312863770872 8.889e-06 deg
tp 2459245.554791058990
(2021-Jan-31.05479106)
3.9829e-05 TDB
period 1610.903377401268
4.41
1.0607e-05
2.904e-08
d
yr
n .2234770905879886 1.4714e-09 deg/d
Q 3.196292479175376 1.403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      8180 days (22.40 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:26:37  

Additional Information
 Earth MOID = 1.18678 au 
 Jupiter MOID = 2.27948 au 
 T_jup = 3.315 
[ 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 15.34   n/a E2021B55  

100964 (1998 QL16)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 QL16 = 2003 WD42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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