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

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4304148188242812 0.00063977  
a 1.714259820767224 0.0019198 au
q .9764169905939545 3.3178e-06 au
i 4.531265815011713 0.0051701 deg
node 298.135906087704 0.0023444 deg
peri 207.9659688918013 0.001796 deg
M 136.6402270960192 0.22811 deg
tp 2458889.335910586278
(2020-Feb-09.83591059)
0.0032587 TDB
period 819.8103484577961
2.24
1.3772
0.003771
d
yr
n .4391259523342463 0.00073768 deg/d
Q 2.452102650940493 0.0027461 au
  Orbit Determination Parameters
   # obs. used (total)      44  
   data-arc span      21 days  
   first obs. used      2019-12-29  
   last obs. used      2020-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .32546  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:13:24  

Additional Information
 Earth MOID = .014489 au 
 Jupiter MOID = 2.57442 au 
 T_jup = 4.068 
[ 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
2020-Jan-18 12:30 < 00:01 Earth 0.040632946730453 0.0404716672764055 0.0407942235642414 8.00893345129308 8.00074161025498 2458867.020730812 0.305500296966959 8025.79557133084 24.9855215775871 0.0851311398187651 454.979773158958 T 6 CATAB v2.0g-lin.ifort 2021-Apr-15 22:13:24 2021-Apr-15 22:13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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