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187968 (2001 QC42)
Classification: Main-belt Asteroid          SPK-ID: 2187968
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .229699302926543 5.2671e-08  
a 2.419161767862738 5.1257e-09 au
q 1.863481996118123 1.2831e-07 au
i 3.438215765021178 4.5148e-06 deg
node 147.4972893153096 6.5253e-05 deg
peri 223.1831038070491 6.5805e-05 deg
M 16.57339037912711 6.5165e-06 deg
tp 2459137.229006824151
(2020-Oct-14.72900682)
2.4857e-05 TDB
period 1374.345081015672
3.76
4.368e-06
1.196e-08
d
yr
n .2619429464788799 8.3251e-10 deg/d
Q 2.974841539607353 6.3031e-09 au
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      7089 days (19.41 yr)  
   first obs. used      2001-08-16  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5303  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:33  

Additional Information
 Earth MOID = .863383 au 
 Jupiter MOID = 2.48994 au 
 T_jup = 3.476 
[ 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 17.17   n/a E2021B55  

187968 (2001 QC42)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

Alternate Designations
 2001 QC42 = 2005 SL203 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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