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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .674768195027755 3.3528e-06  
a 3.279489559520457 3.5382e-05 au
q 1.066594308830471 5.4906e-07 au
i 30.96679704283875 8.1726e-05 deg
node 318.5278062386094 1.2949e-05 deg
peri 68.03422560061971 6.7668e-05 deg
M 129.8996090546885 0.0020927 deg
tp 2458417.767892089388
(2018-Oct-26.26789209)
6.2418e-05 TDB
period 2169.241007716873
5.94
0.035106
9.611e-05
d
yr
n .1659566635147194 2.6858e-06 deg/d
Q 5.492384810210442 5.9257e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .40711  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:34:58  

Additional Information
 Earth MOID = .294861 au 
 Jupiter MOID = 2.00994 au 
 T_jup = 2.591 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458333.5 (2018-Aug-03.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .674366876195992 3.3541e-06  
q 1.068448275703391 5.5832e-07 au
tp 2458417.598707568641
(2018-Oct-26.09870757)
6.4041e-05 TDB
node 318.5183870174448 1.2956e-05 deg
peri 68.08487541033233 6.7469e-05 deg
i 30.9560686299446 8.1563e-05 deg
  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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .40711  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:34:58  

Additional Information
 Jupiter MOID = 2.00994 au 
 T_jup = 2.591 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.125011925727768E-11 1.743952299479407E-12 -1.981753222103577E-10 -1.548402064310299E-11 -2.092393277155373E-10 2.637483752850328E-10
q 1.743952299479407E-12 3.117158242501108E-13 -3.284699966451091E-11 -3.072681466754053E-12 -3.568084751299845E-11 4.253957711244615E-11
tp -1.981753222103577E-10 -3.284699966451091E-11 4.101227929261732E-9 2.442036323832669E-10 4.238636166799222E-9 -4.500167555342289E-9
node -1.548402064310299E-11 -3.072681466754053E-12 2.442036323832669E-10 1.678557589067921E-10 1.86822910946284E-10 -4.792782076511592E-10
peri -2.092393277155373E-10 -3.568084751299845E-11 4.238636166799222E-9 1.86822910946284E-10 4.552054388896413E-9 -4.811542195171748E-9
i 2.637483752850328E-10 4.253957711244615E-11 -4.500167555342289E-9 -4.792782076511592E-10 -4.811542195171748E-9 6.652470281452554E-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 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 09:15 Earth 0.351228108128157 0.347715719553318 0.355614747700802 19.8796983872436 19.8793167792444 2432061.269757213 554.510731806546 896002.811673832 35.8252291539166 -77.286870908513 1241081.79564793 T 26 CATAB v2.0g-lin.ifort 2021-Apr-15 20:34:59 2021-Apr-15 20:34
1952-Sep-02 17:40 03:06 Earth 0.411685868126348 0.40329331041528 0.421054736330732 16.0829106089985 16.082508181932 2434258.236191808 186.266826626173 1093701.12845746 23.2473258860607 66.0843050451725 1813804.22739557 T 26 CATAB v2.0g-lin.ifort 2021-Apr-15 20:34:59 2021-Apr-15 20:34
2018-Aug-15 05:46 < 00:01 Mars 0.0990505414455959 0.0990493827564038 0.0990517002087936 20.6254464682669 20.6253063329965 2458345.740236898 0.364390558572466 153.917246620954 18.6705369322908 69.0284608748787 735947.315521645 T 26 CATAB v2.0g-lin.ifort 2021-Apr-15 20:34:59 2021-Apr-15 20:34
2018-Sep-01 23:47 < 00:01 Earth 0.360739594494297 0.360736302885862 0.360742886104086 16.7668804390524 16.76643991261 2458363.491144782 0.157910464905636 167.966208920328 36.9061763737239 -12.5789758786355 349570.968127012 T 26 CATAB v2.0g-lin.ifort 2021-Apr-15 20:34:59 2021-Apr-15 20:34
2024-Aug-22 04:14 01:26 Earth 0.348506750308445 0.347511993531841 0.349510086852006 22.6322142262725 22.6318764124948 2460544.676420141 86.4686423062033 99585.5222918262 39.1703741620095 -59.9830755186405 1045266.30321422 T 26 CATAB v2.0g-lin.ifort 2021-Apr-15 20:34:59 2021-Apr-15 20:34
2071-Aug-29 11:19 09:35 Earth 0.277720999364535 0.273355132080157 0.283130915506575 18.5594183917538 18.5589014455821 2477717.971658133 575.338576899683 883804.803509759 26.3824786538009 73.9597723952601 1321571.9187353 T 26 CATAB v2.0g-lin.ifort 2021-Apr-15 20:34:59 2021-Apr-15 20:34
2106-Aug-11 13:17 20:22 Earth 0.489790066818347 0.471545598775421 0.508344866668546 28.5464491106282 28.5462585418546 2490483.053136829 1222.20057763664 1104470.78375253 47.2701651513855 -33.7997635514485 809822.552587216 T 26 CATAB v2.0g-lin.ifort 2021-Apr-15 20:34:59 2021-Apr-15 20:34
2135-Aug-17 05:10 17:33 Earth 0.387259649998985 0.372571201018226 0.402473933257815 25.6374235452908 25.6371551727962 2501080.715127864 1053.42079989586 1030729.44957417 44.5062283033964 -43.6291208451009 838137.55798884 T 26 CATAB v2.0g-lin.ifort 2021-Apr-15 20:34:59 2021-Apr-15 20:34
2164-Sep-04 14:52 03:08 Earth 0.447816876454442 0.439487582207331 0.456716264627532 15.7146319410866 15.7142533129198 2511692.119194293 188.046477104224 905299.883351501 46.2900741067292 61.6533853641345 1221286.69620364 T 26 CATAB v2.0g-lin.ifort 2021-Apr-15 20:34:59 2021-Apr-15 20:34
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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