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(2021 AR6)
Classification: Amor [NEO]          SPK-ID: 54105989
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 2459229.5 (2021-Jan-15.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3227601033641958 0.0012017  
a 1.512309016582655 0.0028396 au
q 1.024196002071832 0.00010573 au
i 19.15023135724581 0.043423 deg
node 297.481945517872 0.0035528 deg
peri 185.7252536580284 0.0029439 deg
M 356.5548023175572 0.011555 deg
tp 2459236.000861068564
(2021-Jan-21.50086107)
0.0039326 TDB
period 679.2962843930694
1.86
1.9132
0.005238
d
yr
n .5299602077488899 0.0014926 deg/d
Q 2.000422031093478 0.0037561 au
  Orbit Determination Parameters
   # obs. used (total)      23  
   data-arc span      5 days  
   first obs. used      2021-01-13  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .29809  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:22:57  

Additional Information
 Earth MOID = .0414818 au 
 Jupiter MOID = 3.09595 au 
 T_jup = 4.405 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 1.444142953480439E-6 1.270510987957265E-7 -4.090432439499865E-6 4.269220394741819E-6 -2.430007983844986E-6 5.217815227856792E-5
q 1.270510987957265E-7 1.117777794299028E-8 -3.599207455858243E-7 3.755987867368832E-7 -2.138498770131542E-7 4.590541205632817E-6
tp -4.090432439499865E-6 -3.599207455858243E-7 1.546535746656222E-5 -1.20172786707091E-5 1.109694618445021E-5 -.000146844345654065
node 4.269220394741819E-6 3.755987867368832E-7 -1.20172786707091E-5 1.262261160224747E-5 -7.102417385842761E-6 .0001542713188098237
peri -2.430007983844986E-6 -2.138498770131542E-7 1.109694618445021E-5 -7.102417385842761E-6 8.66664355077829E-6 -8.677072977166226E-5
i 5.217815227856792E-5 4.590541205632817E-6 -.000146844345654065 .0001542713188098237 -8.677072977166226E-5 .001885520156597106

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 25.23   .47761 E2021B55 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
2021-Jan-16 15:55 < 00:01 Earth 0.0486230175786886 0.0482464560016548 0.0489995741792953 11.3382970096298 11.3334629143015 2459231.162922679 0.947250472111145 18761.4442282309 649.158191377166 -0.040468538715218 259.494113503663 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 23:22:58 2021-Apr-15 23:22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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