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192617 (1999 HX9)
Classification: Main-belt Asteroid          SPK-ID: 2192617
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1280120110551468 3.9283e-08  
a 2.3859472541727 1.1034e-08 au
q 2.080517347894547 9.7562e-08 au
i 7.381092337638073 4.0528e-06 deg
node 214.0000349437374 2.7308e-05 deg
peri 7.737689206777477 3.0928e-05 deg
M 305.4303608843638 1.4152e-05 deg
tp 2459404.550782992713
(2021-Jul-09.05078299)
5.3003e-05 TDB
period 1346.138311849826
3.69
9.3376e-06
2.556e-08
d
yr
n .2674316575280426 1.8551e-09 deg/d
Q 2.691377160450852 1.2446e-08 au
  Orbit Determination Parameters
   # obs. used (total)      602  
   data-arc span      8041 days (22.02 yr)  
   first obs. used      1999-04-15  
   last obs. used      2021-04-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49637  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:20:04  

Additional Information
 Earth MOID = 1.07146 au 
 Jupiter MOID = 2.28207 au 
 T_jup = 3.513 
[ 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 16.29   n/a MPCxxxxx  
diameter diameter 3.349 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

192617 (1999 HX9)          Discovered 1999-Apr-17 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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