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126749 Johnjones (2002 DQ1)
Classification: Main-belt Asteroid          SPK-ID: 2126749
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2967990238705938 5.7311e-08  
a 2.526880394689062 1.9694e-08 au
q 1.776904760107608 1.5015e-07 au
i 15.16025759342056 7.7568e-06 deg
node 346.9387598158931 2.3158e-05 deg
peri 40.05840465232823 3.0647e-05 deg
M 336.776409031889 2.4213e-05 deg
tp 2459295.146014045036
(2021-Mar-21.64601404)
9.8993e-05 TDB
period 1467.15316778525
4.02
1.7152e-05
4.696e-08
d
yr
n .2453731538769331 2.8686e-09 deg/d
Q 3.276856029270516 2.554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      488  
   data-arc span      6943 days (19.01 yr)  
   first obs. used      2002-01-09  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61675  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:38:43  

Additional Information
 Earth MOID = .802733 au 
 Jupiter MOID = 2.3007 au 
 T_jup = 3.344 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.53   n/a E2021B55  

126749 Johnjones           Discovered 2002 Feb. 20 by B. L. Stevens at Desert Moon Observatory.
John Jones (1927-2006) was a walking encyclopedia of the Greek and Roman mythology of the sky. He shared his love of the sky with the boy scouts for over 55 years. A president of the Chicago Astronomical Society and general chairman of Astrofest, he also lectured at the Cernan Earth and Space Center, Triton College.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070106/MPCPages.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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