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226999 (2004 XZ78)
Classification: Main-belt Asteroid          SPK-ID: 2226999
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04945075837664602 5.4199e-08  
a 3.022137959563102 3.2298e-08 au
q 2.872690945543857 1.5916e-07 au
i 11.21396837295824 5.3818e-06 deg
node 77.66061713294813 2.5704e-05 deg
peri 126.633839307545 5.6589e-05 deg
M 223.959008064825 5.2291e-05 deg
tp 2459725.665517664123
(2022-May-26.16551766)
0.00028219 TDB
period 1918.977380608058
5.25
3.0763e-05
8.422e-08
d
yr
n .1875999183929559 3.0074e-09 deg/d
Q 3.171584973582346 3.3895e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      7770 days (21.27 yr)  
   first obs. used      1998-09-19  
   last obs. used      2019-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58958  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 06:01:27  

Additional Information
 Earth MOID = 1.88082 au 
 Jupiter MOID = 1.85676 au 
 T_jup = 3.215 
[ 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 14.8   n/a MPO454632  
diameter diameter 3.788 km 0.615 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.148   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226999 (2004 XZ78)          Discovered 2004-Dec-10 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2004 XZ78 = 2003 TN26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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