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JPL Small-Body Database Browser
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(2018 PT23)
Classification: Apollo [NEO]          SPK-ID: 3826840
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 2458346.5 (2018-Aug-16.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .667808978050232 0.001531  
a 2.352316010044021 0.0098767 au
q .781418259325324 0.00032055 au
i .8805340146365783 0.0014199 deg
node 206.122462567583 0.068348 deg
peri 181.7389859204406 0.068013 deg
M 348.3023527618093 0.082538 deg
tp 2458389.319140259801
(2018-Sep-27.81914026)
0.032453 TDB
period 1317.777000763158
3.61
8.2995
0.02272
d
yr
n .273187344893343 0.0017206 deg/d
Q 3.923213760762717 0.016472 au
  Orbit Determination Parameters
   # obs. used (total)      20  
   data-arc span      1 day  
   first obs. used      2018-08-15  
   last obs. used      2018-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .55691  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:35:41  

Additional Information
 Earth MOID = .0133903 au 
 Jupiter MOID = 1.52874 au 
 T_jup = 3.213 
[ 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 24.5   .4557 MPO452064 autocmod 2.6n

[ 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-Jul-06 13:21 06:50 Mars 0.0625050087915131 0.0624110450388852 0.0626017193768649 15.6202330954113 15.6199398657233 2458306.055914004 409.970664517708 22042.7199248433 1330.87997915716 -78.030818618824 6796.72200762704 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 20:35:41 2021-Apr-15 20:35
2018-Aug-16 21:07 < 00:01 Earth 0.0143225478500583 0.0142329591175253 0.0144121349218504 15.8422167855246 15.830469509557 2458347.379800915 0.186494581925928 4460.75680939838 9.47988309941764 0.0831937720361641 359.489165589851 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 20:35:41 2021-Apr-15 20:35
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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