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JPL Small-Body Database Browser
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215781 (2004 HL73)
Classification: Main-belt Asteroid          SPK-ID: 2215781
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09938129638563729 4.663e-08  
a 2.962009408855184 3.1172e-08 au
q 2.667641073896701 1.47e-07 au
i 1.903895769411709 6.0361e-06 deg
node 26.6462248515572 0.00016079 deg
peri 247.4099124714257 0.00016399 deg
M 298.1532716516636 3.1562e-05 deg
tp 2458920.383844839254
(2020-Mar-11.88384484)
0.00016398 TDB
period 1861.99314365558
5.10
2.9393e-05
8.047e-08
d
yr
n .1933412060225022 3.0521e-09 deg/d
Q 3.256377743813668 3.427e-08 au
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      9570 days (26.20 yr)  
   first obs. used      1993-02-26  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:22:13  

Additional Information
 Earth MOID = 1.65158 au 
 Jupiter MOID = 1.8362 au 
 T_jup = 3.257 
[ 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 16.2   n/a MPO437031  

215781 (2004 HL73)          Discovered 2004-Apr-28 by Spacewatch at Kitt Peak
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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