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JPL Small-Body Database Browser
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(2020 AC1)
Classification: Aten [NEO]          SPK-ID: 3973542
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2196829927272255 0.00018863  
a .8599008033485138 7.9862e-05 au
q .6709952214203669 0.00022452 au
i 6.000861511785902 0.005973 deg
node 282.4722484330172 0.00030332 deg
peri 38.411599418405 0.0021526 deg
M 307.2705320213784 0.010831 deg
tp 2459043.160097883637
(2020-Jul-12.66009788)
0.014699 TDB
period 291.2533698298612
0.80
0.040574
0.0001111
d
yr
n 1.236037200909633 0.00017219 deg/d
Q 1.048806385276661 9.7406e-05 au
  Orbit Determination Parameters
   # obs. used (total)      43  
   data-arc span      10 days  
   first obs. used      2020-01-04  
   last obs. used      2020-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .45939  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-14 05:05:44  

Additional Information
 Earth MOID = .00292379 au 
 Jupiter MOID = 4.16506 au 
 T_jup = 6.840 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458854.5 (2020-Jan-06.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2207783677583933 0.00018627  
q .6696516812901625 0.00022145 au
tp 2458752.214886953595
(2019-Sep-25.71488695)
0.025315 TDB
node 282.5481783613343 0.00015438 deg
peri 38.44361429155374 0.0022201 deg
i 6.030850621296603 0.0059224 deg
  Orbit Determination Parameters
   # obs. used (total)      43  
   data-arc span      10 days  
   first obs. used      2020-01-04  
   last obs. used      2020-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .45939  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-14 05:05:44  

Additional Information
 Jupiter MOID = 4.16506 au 
 T_jup = 6.840 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.469777081518676E-8 -4.12496326351492E-8 4.715280339326995E-6 2.863101690640875E-8 -4.082643573275926E-7 1.10315472594629E-6
q -4.12496326351492E-8 4.903907010730623E-8 -5.605487282376516E-6 -3.403126608902033E-8 4.855814371237866E-7 -1.31145576467917E-6
tp 4.715280339326995E-6 -5.605487282376516E-6 .0006408525834285968 3.893412329707549E-6 -5.539079881183681E-5 .0001499151544854304
node 2.863101690640875E-8 -3.403126608902033E-8 3.893412329707549E-6 2.383226654764106E-8 -3.335140836724839E-7 9.104829098336162E-7
peri -4.082643573275926E-7 4.855814371237866E-7 -5.539079881183681E-5 -3.335140836724839E-7 4.928738483695082E-6 -1.297846643599155E-5
i 1.10315472594629E-6 -1.31145576467917E-6 .0001499151544854304 9.104829098336162E-7 -1.297846643599155E-5 3.507423531861762E-5

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 28.4   .28005 E2020A86 autocmod 2.8

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