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(2018 JB3)
Classification: Atira [NEO]          SPK-ID: 3824107
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2904785371372769 4.8214e-07  
a .6832071683614558 1.3184e-07 au
q .4847501495341189 3.8638e-07 au
i 40.39004438411826 7.9827e-05 deg
node 106.4238037615632 6.9338e-05 deg
peri 355.2478797228615 0.00010699 deg
M 350.6655795805342 0.00030076 deg
tp 2459005.848252529130
(2020-Jun-05.34825253)
0.00017369 TDB
period 206.2657159165075
0.56
5.9705e-05
1.635e-07
d
yr
n 1.74532155477414 5.052e-07 deg/d
Q .8816641871887927 1.7014e-07 au
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      419 days (1.15 yr)  
   first obs. used      2018-05-09  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .33611  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-18 07:28:23  

Additional Information
 Earth MOID = .135847 au 
 Jupiter MOID = 4.25611 au 
 T_jup = 8.144 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458517.5 (2019-Feb-03.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2904923430865992 4.8206e-07  
q .4847264947303401 3.8632e-07 au
tp 2458593.313672614419
(2019-Apr-19.81367261)
8.7854e-05 TDB
node 106.4254642455094 6.9344e-05 deg
peri 355.2389725716414 0.00010699 deg
i 40.38995647082255 7.9828e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      75  
   data-arc span      419 days (1.15 yr)  
   first obs. used      2018-05-09  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .33611  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-18 07:28:23  

Additional Information
 Jupiter MOID = 4.25611 au 
 T_jup = 8.144 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.323794544557548E-13 -1.82202826419549E-13 1.838035783686286E-11 -1.693065410502685E-11 4.43364815315273E-11 5.174727313050358E-12
q -1.82202826419549E-13 1.492441744439689E-13 -9.344875245027969E-12 1.049369735135226E-11 -3.469851765727825E-11 8.819049895886824E-13
tp 1.838035783686286E-11 -9.344875245027969E-12 7.718380708530842E-9 -3.415647269953153E-9 5.827205999561665E-9 4.42060609579999E-9
node -1.693065410502685E-11 1.049369735135226E-11 -3.415647269953153E-9 4.808586641896552E-9 -4.211547791139569E-9 -4.671210400982636E-9
peri 4.43364815315273E-11 -3.469851765727825E-11 5.827205999561665E-9 -4.211547791139569E-9 1.144654508792779E-8 2.112705761668994E-9
i 5.174727313050358E-12 8.819049895886824E-13 4.42060609579999E-9 -4.671210400982636E-9 2.112705761668994E-9 6.372499808383058E-9

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 17.6   n/a E2018L78  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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