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JPL Small-Body Database Browser
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(2012 HL)
Classification: Apollo [NEO]          SPK-ID: 3602621
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5199823635870743 4.8492e-08  
a 2.094204787008008 2.392e-08 au
q 1.005255232024219 9.838e-08 au
i 9.268303355079411 1.3556e-05 deg
node 210.200777220461 1.2943e-05 deg
peri 40.66811711446397 3.1061e-05 deg
M 231.905885336664 2.0036e-05 deg
tp 2459394.370835630904
(2021-Jun-28.87083563)
6.7944e-05 TDB
period 1106.947818795538
3.03
1.8965e-05
5.192e-08
d
yr
n .3252185820210688 5.572e-09 deg/d
Q 3.183154341991798 3.6358e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   # delay obs. used      1  
   # Doppler obs. used      2  
   data-arc span      2301 days (6.30 yr)  
   first obs. used      2012-04-16  
   last obs. used      2018-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35751  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Aug-05 06:21:37  

Additional Information
 Earth MOID = .0528707 au 
 Jupiter MOID = 1.90254 au 
 T_jup = 3.554 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 22.5   n/a MPO235400  

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