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JPL Small-Body Database Browser
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(2021 JU4)
Classification: Amor [NEO]          SPK-ID: 54144928
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1898728430443132 0.00042675  
a 1.27142382085272 0.00070781 au
q 1.03001496527315 3.084e-05 au
i 15.03356701064158 0.020584 deg
node 45.21390511728949 0.0037421 deg
peri 185.2876044679453 0.0042557 deg
M 33.26526543048546 0.030176 deg
tp 2459348.113697623101
(2021-May-13.61369762)
0.0034943 TDB
period 523.641360748627
1.43
0.43727
0.001197
d
yr
n .6874934391838793 0.0005741 deg/d
Q 1.512832676432289 0.0008422 au
  Orbit Determination Parameters
   # obs. used (total)      94  
   data-arc span      11 days  
   first obs. used      2021-05-06  
   last obs. used      2021-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .74685  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-19 06:23:08  

Additional Information
 Earth MOID = .0222507 au 
 Jupiter MOID = 3.46844 au 
 T_jup = 5.030 
[ 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 24.71   .2441 MPO622852 autocmod 2.9c

[ 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-May-09 18:49 < 00:01 Earth 0.0502614617918212 0.0500358726338073 0.0504870479443103 8.43553213255032 8.42924537631696 2459344.284052206 0.340457034292214 11232.4233942013 194.944974076172 0.229170085656497 410.606855878347 T 4 CATAB v2.0g-lin.ifort 2021-May-19 06:23:08 2021-May-19 06:23
2024-Oct-12 05:32 3_07:52 Earth 0.489357360486907 0.488483036094918 0.491803701396911 9.75307780989375 9.75251952359081 2460595.730795301 4791.68344785336 1386153.85070399 94.2798253308899 -86.5718728954519 190935.94481819 T 4 CATAB v2.0g-lin.ifort 2021-May-19 06:23:08 2021-May-19 06:23
2074-Jun-01 18:12 3_00:11 Earth 0.309747246228831 0.291914809223053 0.329417675063345 12.0964136388437 12.0957024891293 2478725.258245573 4331.44860827677 1513994.21714275 748.321776129298 -51.7277465625789 35351.9947663331 T 4 CATAB v2.0g-lin.ifort 2021-May-19 06:23:08 2021-May-19 06:23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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