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(2020 HL1)
Classification: Apollo [NEO]          SPK-ID: 54016586
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458961.5 (2020-Apr-22.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6136019512451029 0.0014606  
a 2.449434609771644 0.0090033 au
q .9464567537684762 9.8726e-05 au
i 1.415346179680742 0.0021084 deg
node 241.8820466891401 0.011748 deg
peri 19.73267207458791 0.0054758 deg
M 349.6899908624108 0.059958 deg
tp 2459001.600865976672
(2020-Jun-01.10086598)
0.012115 TDB
period 1400.222983214312
3.83
7.7201
0.02114
d
yr
n .2571019075644611 0.0014175 deg/d
Q 3.952412465774811 0.014528 au
  Orbit Determination Parameters
   # obs. used (total)      47  
   data-arc span      12 days  
   first obs. used      2020-04-16  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .43176  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-28 07:10:57  

Additional Information
 Earth MOID = .00586312 au 
 Jupiter MOID = 1.14831 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 2.133234685197611E-6 -1.441548470636476E-7 -1.769113418514347E-5 1.709953801536277E-5 -7.782632704440338E-6 3.078816146345602E-6
q -1.441548470636476E-7 9.746800298088391E-9 1.19497176997227E-6 -1.153947911921747E-6 5.23471527639651E-7 -2.08109345815975E-7
tp -1.769113418514347E-5 1.19497176997227E-6 .0001467652899528793 -.000141952765154901 6.47721753760171E-5 -2.552765871349621E-5
node 1.709953801536277E-5 -1.153947911921747E-6 -.000141952765154901 .0001380174359126832 -6.358307842081999E-5 2.464016688279385E-5
peri -7.782632704440338E-6 5.23471527639651E-7 6.47721753760171E-5 -6.358307842081999E-5 2.998430077780714E-5 -1.118444021763947E-5
i 3.078816146345602E-6 -2.08109345815975E-7 -2.552765871349621E-5 2.464016688279385E-5 -1.118444021763947E-5 4.445191166228194E-6

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 25.268   .33707 6 autocmod 2.8

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