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80278 (1999 XH33)
Classification: Main-belt Asteroid          SPK-ID: 2080278
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2262560837240086 3.5829e-08  
a 2.252770897913245 5.1216e-09 au
q 1.743067777023976 7.9712e-08 au
i 6.738714363830506 3.2507e-06 deg
node 125.2388791674912 3.1213e-05 deg
peri 281.2151677580907 3.2205e-05 deg
M 64.14289435884702 6.773e-06 deg
tp 2458780.450685609844
(2019-Oct-23.95068561)
2.325e-05 TDB
period 1235.01993435583
3.38
4.2117e-06
1.153e-08
d
yr
n .2914932706634983 9.9406e-10 deg/d
Q 2.762474018802514 6.2804e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1223  
   data-arc span      7499 days (20.53 yr)  
   first obs. used      1999-11-08  
   last obs. used      2020-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54922  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:20:11  

Additional Information
 Earth MOID = .76799 au 
 Jupiter MOID = 2.65273 au 
 T_jup = 3.583 
[ 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 15.3   n/a MPO449503  
diameter diameter 2.165 km 0.489 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.313   0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

80278 (1999 XH33)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

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