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(2021 AL)
Classification: Apollo [NEO]          SPK-ID: 54104252
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2981684346845363 0.00030957  
a 1.200943519023008 0.00033443 au
q .8428600698113792 0.00013707 au
i 1.715247616728913 0.0017636 deg
node 292.4835321295002 0.0014843 deg
peri 258.7434480605319 0.0064186 deg
M 291.7095167242476 0.034366 deg
tp 2459291.688482060317
(2021-Mar-18.18848206)
0.0078001 TDB
period 480.7090529606783
1.32
0.20079
0.0005497
d
yr
n .7488937389108163 0.00031282 deg/d
Q 1.559026968234637 0.00043414 au
  Orbit Determination Parameters
   # obs. used (total)      56  
   data-arc span      31 days  
   first obs. used      2020-12-23  
   last obs. used      2021-01-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .31353  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:22:27  

Additional Information
 Earth MOID = .00542887 au 
 Jupiter MOID = 3.39776 au 
 T_jup = 5.249 
[ 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 24.78   .4658 E2021-BC6 autocmod 2.8

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