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JPL Small-Body Database Browser
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305984 (2009 HN104)
Classification: Main-belt Asteroid          SPK-ID: 2305984
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .19022617041068 5.5981e-08  
a 2.619869354010999 2.3306e-08 au
q 2.121501639821184 1.494e-07 au
i 11.72670212755019 9.5212e-06 deg
node 184.1800421968405 1.9939e-05 deg
peri 314.3427265438006 3.0435e-05 deg
M 200.3192834382587 2.0954e-05 deg
tp 2459287.517581159299
(2021-Mar-14.01758116)
9.229e-05 TDB
period 1548.880381694164
4.24
2.0668e-05
5.659e-08
d
yr
n .2324259537758702 3.1015e-09 deg/d
Q 3.118237068200813 2.774e-08 au
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      7709 days (21.11 yr)  
   first obs. used      1998-09-18  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57797  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:41:51  

Additional Information
 Earth MOID = 1.15142 au 
 Jupiter MOID = 1.96501 au 
 T_jup = 3.350 
[ 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 16.8   n/a MPO264763  

305984 (2009 HN104)          Discovered 2009-Apr-28 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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