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JPL Small-Body Database Browser
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(2021 JS3)
Classification: Apollo [NEO]          SPK-ID: 54144297
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5076918562144916 0.00080652  
a 2.048915147167852 0.0033591 au
q 1.008697612876217 2.5374e-06 au
i 7.926731735227714 0.0089094 deg
node 222.346383591376 0.0004038 deg
peri 30.23021031766759 0.0030317 deg
M 10.96173245985862 0.025841 deg
tp 2459363.881717937950
(2021-May-29.38171794)
0.0034274 TDB
period 1071.234094185281
2.93
2.6344
0.007213
d
yr
n .3360609991355765 0.00082644 deg/d
Q 3.089132681459487 0.0050645 au
  Orbit Determination Parameters
   # obs. used (total)      40  
   data-arc span      4 days  
   first obs. used      2021-05-08  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .34466  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-12 05:53:01  

Additional Information
 Earth MOID = .0314034 au 
 Jupiter MOID = 1.98002 au 
 T_jup = 3.610 
[ 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 25.80   .2734 MPO622848 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-10 02:54 < 00:01 Earth 0.0329880371886508 0.032857883266077 0.0331181891427678 9.1916453774916 9.18285372794084 2459344.620877670 0.689756984446367 6477.7374840192 67.8148860488372 0.00768770848263984 475.795988766695 T 3 CATAB v2.0g-lin.ifort 2021-May-12 05:53:02 2021-May-12 05:53
2024-Apr-05 09:07 7_07:49 Earth 0.435618262006446 0.300594267604633 0.570737111527149 21.0693754422346 21.0690851351671 2460405.879513916 10549.2538120769 6743089.30244948 403.262606371976 2.61088121469085 6542.22617216285 T 3 CATAB v2.0g-lin.ifort 2021-May-12 05:53:02 2021-May-12 05:53
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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