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JPL Small-Body Database Browser
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(2020 AH1)
Classification: Apollo [NEO]          SPK-ID: 3973547
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4304246970511398 0.00064137  
a 1.713968038390093 0.0019211 au
q .9762338647107007 5.1212e-06 au
i 4.531946493584662 0.0051814 deg
node 298.1368244694517 0.0023435 deg
peri 207.9260059271231 0.00174 deg
M 48.85899185556034 0.080745 deg
tp 2458889.264219537409
(2020-Feb-09.76421954)
0.0031961 TDB
period 819.6010487673498
2.24
1.378
0.003773
d
yr
n .4392380909485498 0.00073848 deg/d
Q 2.451702212069485 0.002748 au
  Orbit Determination Parameters
   # obs. used (total)      42  
   data-arc span      21 days  
   first obs. used      2019-12-29  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .30552  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-20 05:06:36  

Additional Information
 Earth MOID = .014373 au 
 Jupiter MOID = 2.57555 au 
 T_jup = 4.069 
[ 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 24.5   .43214 E2020A63 autocmod 2.8

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1923-Mar-12 15:05 18:46 Earth 0.0715935639132397 0.0713911617813661 0.0718172382100692 7.38974500034054 7.38470701396674 2423491.128679127 1125.82748861553 62472.1257359568 40.579097222806 80.1971123878205 105196.530310323 T 4 CATAB v2.0f-lin.ifort 2020-Jan-20 05:06:37 2020-Jan-20 05:06
2001-Dec-31 12:25 8_01:52 Earth 0.204859674357253 0.0943169402114525 0.315562105556604 13.1400601199179 13.1390702573881 2452275.017654630 11632.4656598891 5523671.2110641 54.6911807785349 -2.58285932026338 21430.0147139563 T 4 CATAB v2.0f-lin.ifort 2020-Jan-20 05:06:37 2020-Jan-20 05:06
2020-Jan-18 12:30 < 00:01 Earth 0.040636777841295 0.0404751731888861 0.0407983798638933 8.00968912050259 8.00149882573532 2458867.020726641 0.306338597226589 8041.98328627474 25.0761494807653 0.0852535289561944 454.120840898796 T 4 CATAB v2.0f-lin.ifort 2020-Jan-20 05:06:37 2020-Jan-20 05:06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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