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78796 (2002 XH22)
Classification: Main-belt Asteroid          SPK-ID: 2078796
[ 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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05275294413587978 6.2686e-08  
a 3.15579237043517 2.9368e-08 au
q 2.989315031813168 2.0258e-07 au
i 9.67053452117392 5.3556e-06 deg
node 275.7380062752904 3.9316e-05 deg
peri 239.5900625442599 6.4637e-05 deg
M 1.64832570700098 4.9788e-05 deg
tp 2459191.124345588916
(2020-Dec-07.62434559)		 0.00028318 TDB
period 2047.67514918586
5.61		 2.8584e-05
7.826e-08		 d
yr
n .175809136592361 2.4542e-09 deg/d
Q 3.322269709057173 3.0918e-08 au
   Orbit Determination Parameters
   # obs. used (total)      668  
   data-arc span      8355 days (22.87 yr)  
   first obs. used      1998-03-05  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51454  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:16:40  

Additional Information
 Earth MOID = 2.01483 au 
 Jupiter MOID = 1.80725 au 
 T_jup = 3.182 
[ 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 14.4   n/a MPO337849  
diameter diameter 3.847 km 0.507 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.227   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78796 (2002 XH22)          Discovered 2002-Dec-03 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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