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(2018 PL9)
Classification: Amor [NEO]          SPK-ID: 3826671
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6745545762693541 3.3534e-06  
a 3.279985036265598 3.5385e-05 au
q 1.067456119957636 5.5363e-07 au
i 30.96462117557961 8.1676e-05 deg
node 318.5231357021769 1.2954e-05 deg
peri 68.04977611974425 6.7517e-05 deg
M 96.70732809640201 0.0015552 deg
tp 2458417.641540464197
(2018-Oct-26.14154046)
6.3295e-05 TDB
period 2169.732631054831
5.94
0.035111
9.613e-05
d
yr
n .16591906064711 2.6849e-06 deg/d
Q 5.492513952573561 5.9254e-05 au
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      226 days  
   first obs. used      2018-06-12  
   last obs. used      2019-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .40712  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Sep-15 06:53:24  

Additional Information
 Earth MOID = .297057 au 
 Jupiter MOID = 2.00916 au 
 T_jup = 2.592 
[ 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 19.2   .46361 E2019-VI7 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
1946-Aug-28 18:28 09:14 Earth 0.351228934204363 0.347717625249814 0.35561380081995 19.8797498853089 19.8793682791959 2432061.269675965 554.29800902142 895649.775013687 35.8254449158742 -77.2864584631998 1241077.86909509 T 25 CATAB v2.0f-lin.ifort 2020-Sep-15 06:53:32 2020-Sep-15 06:53
1952-Sep-02 17:40 03:06 Earth 0.411683966563934 0.403294012518585 0.421049602518494 16.0829352251052 16.0825327967958 2434258.236164529 186.212428295701 1093345.52147157 23.24724262779 66.0844114936411 1813804.40450398 T 25 CATAB v2.0f-lin.ifort 2020-Sep-15 06:53:32 2020-Sep-15 06:53
2018-Aug-15 05:46 < 00:01 Mars 0.0990505415799462 0.0990493828906907 0.0990517003432018 20.6254465084382 20.6253063731701 2458345.740236703 0.364390577028839 153.9172540865 18.6705369239198 69.0284606293035 735947.315629226 T 25 CATAB v2.0f-lin.ifort 2020-Sep-15 06:53:32 2020-Sep-15 06:53
2018-Sep-01 23:47 < 00:01 Earth 0.360739595215426 0.36073630360682 0.360742886825364 16.7668807070409 16.7664401806065 2458363.491143084 0.157910493007925 167.966216321574 36.906175375065 -12.5789742533135 349570.949145559 T 25 CATAB v2.0f-lin.ifort 2020-Sep-15 06:53:32 2020-Sep-15 06:53
2024-Aug-22 04:14 01:26 Earth 0.348506540053482 0.347511784691717 0.349509875198147 22.63220695099 22.6318691369 2460544.676433208 86.4686181855216 99585.533964422 39.1703561535107 -59.9831260137942 1045266.61008936 T 25 CATAB v2.0f-lin.ifort 2020-Sep-15 06:53:32 2020-Sep-15 06:53
2071-Aug-29 11:19 09:35 Earth 0.277722009663478 0.273356851293093 0.283130752059222 18.5593760656231 18.5588591201531 2477717.971740370 575.208311157147 883611.370430242 26.3824048992552 73.9593532816209 1321577.37173993 T 25 CATAB v2.0f-lin.ifort 2020-Sep-15 06:53:32 2020-Sep-15 06:53
2106-Aug-11 13:17 20:21 Earth 0.489785887416971 0.471553335254014 0.508328369006238 28.5463413312667 28.5461507601474 2490483.053328844 1221.38959283194 1103745.3742899 47.2703252948773 -33.799948847438 809816.922325175 T 25 CATAB v2.0f-lin.ifort 2020-Sep-15 06:53:32 2020-Sep-15 06:53
2135-Aug-17 05:10 17:32 Earth 0.387256415687088 0.372587910627361 0.402449304677728 25.6373349976407 25.6370666219778 2501080.715285510 1051.94402506606 1029303.43709662 44.5076641586959 -43.6291681867025 838106.532204752 T 25 CATAB v2.0f-lin.ifort 2020-Sep-15 06:53:32 2020-Sep-15 06:53
2164-Sep-04 14:52 03:07 Earth 0.447818082361692 0.439518988693643 0.456683067671979 15.7146227013861 15.7142440740164 2511692.119211744 187.343381608322 901945.567368483 46.3185331385552 61.6549129255576 1220714.32345407 T 25 CATAB v2.0f-lin.ifort 2020-Sep-15 06:53:32 2020-Sep-15 06:53
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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