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JPL Small-Body Database Browser
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(2021 JL5)
Classification: Apollo [NEO]          SPK-ID: 54145075
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6015929809028652 0.00071536  
a 2.49463072903661 0.0044435 au
q .993878392503588 1.4486e-05 au
i 4.70447883850993 0.003901 deg
node 51.55194737939693 0.00018098 deg
peri 204.3386040649056 0.0022714 deg
M 7.405085205575435 0.019138 deg
tp 2459366.897023002290
(2021-Jun-01.39702300)
0.0026424 TDB
period 1439.155853487253
3.94
3.8452
0.01053
d
yr
n .2501466391757886 0.00066835 deg/d
Q 3.995383065569632 0.0071167 au
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      3 days  
   first obs. used      2021-05-09  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .74153  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-12 11:42:02  

Additional Information
 Earth MOID = .00848271 au 
 Jupiter MOID = 1.09742 au 
 T_jup = 3.188 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459345.5 (2021-May-11.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6035996158354827 0.00071173  
q .9942994933525749 1.5367e-05 au
tp 2459366.749396278164
(2021-Jun-01.24939628)
0.0021765 TDB
node 51.58959712299364 0.00029241 deg
peri 204.1193262039279 0.0028973 deg
i 4.732457421792978 0.0038354 deg
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      3 days  
   first obs. used      2021-05-09  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .74153  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-12 11:42:02  

Additional Information
 Jupiter MOID = 1.09742 au 
 T_jup = 3.188 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.065555333415488E-7 -1.078279399341005E-8 -1.504858030382792E-6 -2.078372079309412E-7 1.999925385835695E-6 2.729369343476475E-6
q -1.078279399341005E-8 2.361341954258067E-10 3.070869938908294E-8 4.418272428388511E-9 -4.438295123079303E-8 -5.796299054507857E-8
tp -1.504858030382792E-6 3.070869938908294E-8 4.737217996381425E-6 6.186139979100011E-7 -5.576919546468473E-6 -8.135112058498124E-6
node -2.078372079309412E-7 4.418272428388511E-9 6.186139979100011E-7 8.550102517764926E-8 -8.191710037903728E-7 -1.120389980589786E-6
peri 1.999925385835695E-6 -4.438295123079303E-8 -5.576919546468473E-6 -8.191710037903728E-7 8.394170644178543E-6 1.07394492959291E-5
i 2.729369343476475E-6 -5.796299054507857E-8 -8.135112058498124E-6 -1.120389980589786E-6 1.07394492959291E-5 1.471065011808232E-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 27.73   .33982 MPO622855 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-15 04:37 < 00:01 Earth 0.0114608909143898 0.0114258866327818 0.0114958941598497 9.7147500580359 9.69078942693903 2459349.692632683 0.390467704805145 1736.99571183051 10.4501282703625 -0.101463505313312 628.137862557412 T 1 CATAB v2.0g-lin.ifort 2021-May-12 11:42:03 2021-May-12 11:42
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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