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469609 (2004 HS78)
Classification: Main-belt Asteroid          SPK-ID: 2469609
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1199360965013924 1.6554e-07  
a 3.109261857998809 1.1497e-07 au
q 2.736349127749765 4.3946e-07 au
i 28.67785332836082 1.1195e-05 deg
node 122.1918225775935 3.4298e-05 deg
peri 203.49736412 0.00011129 deg
M 227.8982162718893 8.6685e-05 deg
tp 2459735.336223988385
(2022-Jun-04.83622399)
0.00045741 TDB
period 2002.554645138567
5.48
0.00011107
3.041e-07
d
yr
n .1797703752424143 9.9709e-09 deg/d
Q 3.482174588247853 1.2876e-07 au
  Orbit Determination Parameters
   # obs. used (total)      69  
   data-arc span      5805 days (15.89 yr)  
   first obs. used      2003-03-07  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45976  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:22:44  

Additional Information
 Earth MOID = 1.7358 au 
 Jupiter MOID = 1.83601 au 
 T_jup = 3.020 
[ 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 15.9   n/a MPO285665  
diameter diameter 4.380 km 0.901 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

469609 (2004 HS78)          Discovered 2004-Apr-22 by Sloan Digital Sky Survey at Apache Point
Reference: Last Updated: 2016-08-22

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