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(2021 AF7)
Classification: Apollo [NEO]          SPK-ID: 54106002
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5338310654301008 0.00027314  
a 2.155355621793109 0.0012832 au
q 1.004759833830536 9.4568e-06 au
i 2.433812346819528 0.0010957 deg
node 23.25901417557201 0.0017507 deg
peri 109.7245799511226 0.0010543 deg
M 345.6291252869219 0.012731 deg
tp 2459246.637869273705
(2021-Feb-01.13786927)
0.00033121 TDB
period 1155.784409101998
3.16
1.0321
0.002826
d
yr
n .3114767747037761 0.00027815 deg/d
Q 3.305951409755681 0.0019682 au
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      47 days  
   first obs. used      2021-01-03  
   last obs. used      2021-02-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .40339  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-20 05:21:09  

Additional Information
 Earth MOID = .0430823 au 
 Jupiter MOID = 1.76104 au 
 T_jup = 3.502 
[ 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 25.1   .46271 E2021D54 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
1950-Jan-14 15:03 6_10:02 Jupiter 1.77093971441277 1.76656789424754 1.77536494643114 2.25786125767375 2.03503261157396 2433296.126736886 9241.67202229747 566724.467890244 71.4874140040011 57.6082534890164 1401181.37310279 T 5 CATAB v2.0f-lin.ifort 2021-Feb-20 05:21:09 2021-Feb-20 05:21
1951-Apr-27 01:19 4_20:33 Mars 0.0266968950634059 0.0258808918664896 0.0863940590800791 15.0671541597778 15.066442414723 2433763.554841996 6992.77191560732 3783960.48450613 75.919109671007 -75.8112411973905 50904.9726944948 T 5 CATAB v2.0f-lin.ifort 2021-Feb-20 05:21:09 2021-Feb-20 05:21
2021-Jan-29 19:37 < 00:01 Earth 0.045588243663088 0.0455241470290719 0.0456523398213349 6.66552811397442 6.65675384647588 2459244.317293586 0.217577455531777 3187.76880093735 7.41382732524888 0.0156616959435228 1226.36672367484 T 5 CATAB v2.0f-lin.ifort 2021-Feb-20 05:21:09 2021-Feb-20 05:21
2030-Apr-29 08:15 8_13:38 Mars 0.0397215191551004 0.0279928727400245 0.164003561471553 14.3852393170241 14.3847382788582 2462620.843621311 12338.3185695976 6652978.20174352 76.5129068441372 44.8112859729621 54863.6114368216 T 5 CATAB v2.0f-lin.ifort 2021-Feb-20 05:21:09 2021-Feb-20 05:21
2118-Dec-15 23:20 8_06:00 Earth 0.39888793395091 0.256326782383419 0.542237410992901 18.7998941437633 18.7995388315324 2494992.472019522 11879.7227726595 7183265.85241826 16.7521618273984 -6.61302236111513 352741.857134768 T 5 CATAB v2.0f-lin.ifort 2021-Feb-20 05:21:09 2021-Feb-20 05:21
2152-May-24 18:27 8_19:11 Jupiter 1.94446886066929 1.92804532881257 1.96111551497087 2.22327937209072 2.01785999191829 2507206.269021183 12670.8686976042 1388551.4287228 94.0019335510115 -44.2868016447398 1781973.86336631 T 5 CATAB v2.0f-lin.ifort 2021-Feb-20 05:21:09 2021-Feb-20 05:21
2160-Jan-04 14:19 6_07:15 Earth 0.140806275298619 0.0894019487757212 0.196286704418856 10.6376050612713 10.6358260331991 2509987.096583893 9074.83343074273 2922267.36262682 13.9346877563456 -22.3317513952193 477099.381771066 T 5 CATAB v2.0f-lin.ifort 2021-Feb-20 05:21:09 2021-Feb-20 05:21
2182-Mar-31 18:22 6_13:39 Earth 0.376125534678874 0.266558026949385 0.485832753265958 18.3603323605832 18.3599465238576 2518109.264941716 9459.09247771361 5479110.58553362 46.4487739966514 -3.6419737850462 65913.317898467 T 5 CATAB v2.0f-lin.ifort 2021-Feb-20 05:21:09 2021-Feb-20 05:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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