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JPL Small-Body Database Browser
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201222 (2002 QX78)
Classification: Main-belt Asteroid          SPK-ID: 2201222
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1634498617131613 4.9317e-08  
a 3.08640708035861 2.8652e-08 au
q 2.581934269883473 1.5502e-07 au
i 4.101087043117729 6.3395e-06 deg
node 355.1788259064075 6.791e-05 deg
peri 39.72307907405104 7.0447e-05 deg
M 342.21715000273 1.8145e-05 deg
tp 2458698.331137035558
(2019-Aug-02.83113704)
0.00010033 TDB
period 1980.515459457154
5.42
2.7578e-05
7.55e-08
d
yr
n .181770860853908 2.5311e-09 deg/d
Q 3.590879890833747 3.3335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      358  
   data-arc span      6315 days (17.29 yr)  
   first obs. used      2002-08-20  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58632  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 14:34:46  

Additional Information
 Earth MOID = 1.58946 au 
 Jupiter MOID = 1.86537 au 
 T_jup = 3.202 
[ 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 15.7   n/a MPO413035  

201222 (2002 QX78)          Discovered 2002-Aug-20 by NEAT at Palomar
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Alternate Designations
 2002 QX78 = 2005 ES44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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