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(2018 MK)
Classification: Apollo [NEO]          SPK-ID: 3825284
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 2458280.5 (2018-Jun-11.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4616605043791813 0.0013714  
a 1.774432288807201 0.0044944 au
q .9552469833697637 1.4065e-05 au
i 26.705330681263 0.041491 deg
node 87.67409648402915 0.00042252 deg
peri 221.4501696214775 0.030764 deg
M 342.1401079850125 0.085036 deg
tp 2458323.331560964161
(2018-Jul-23.83156096)
0.041205 TDB
period 863.3513536452789
2.36
3.2801
0.00898
d
yr
n .4169797133924591 0.0015842 deg/d
Q 2.593617594244639 0.0065692 au
  Orbit Determination Parameters
   # obs. used (total)      25  
   data-arc span      10 days  
   first obs. used      2018-06-08  
   last obs. used      2018-06-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .47125  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:31:38  

Additional Information
 Earth MOID = .0188476 au 
 Jupiter MOID = 2.79624 au 
 T_jup = 3.858 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 1.880829224416038E-6 -1.924011901228112E-8 -5.650979560600246E-5 -5.792010523177478E-7 -4.219022963523809E-5 5.69024009686789E-5
q -1.924011901228112E-8 1.978225145643318E-10 5.779658787287314E-7 5.935963698315687E-9 4.313992105420122E-7 -5.820549074119645E-7
tp -5.650979560600246E-5 5.779658787287314E-7 .001697857344303722 1.740112194835711E-5 .001267632549841134 -.001709643940525094
node -5.792010523177478E-7 5.935963698315687E-9 1.740112194835711E-5 1.785258510478422E-7 1.29904618877581E-5 -1.752272161211339E-5
peri -4.219022963523809E-5 4.313992105420122E-7 .001267632549841134 1.29904618877581E-5 .0009464357623316253 -.001276424175328847
i 5.69024009686789E-5 -5.820549074119645E-7 -.001709643940525094 -1.752272161211339E-5 -.001276424175328847 .001721521773531133

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 24.3   n/a E2018M39  

[ 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
2018-Jun-20 11:03 < 00:01 Earth 0.0192340401750351 0.0191268674299474 0.0193412117856949 17.1109263453737 17.102828469885 2458289.960365144 0.130990583576516 5339.16218728991 7.72487841021798 -0.0289607258382594 413.731315273626 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 20:31:39 2021-Apr-15 20:31
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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