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1009 Sirene (1923 PE)
Classification: Mars-crossing Asteroid          SPK-ID: 2001009
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4564763199093725 9.3773e-08  
a 2.622977895835966 4.6471e-09 au
q 1.425650598741135 2.4564e-07 au
i 15.77466662449703 1.341e-05 deg
node 229.4623934995807 3.0437e-05 deg
peri 186.3683282739658 3.1777e-05 deg
M 278.7037887567856 1.1191e-05 deg
tp 2457950.895224260527
(2017-Jul-16.39522426)
4.837e-05 JED
period 1551.637878380448
4.25
4.1236e-06
1.129e-08
d
yr
n .2320128974782164 6.1659e-10 deg/d
Q 3.820305192930797 6.7684e-09 au
  Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      33473 days (91.64 yr)  
   first obs. used      1923-10-31  
   last obs. used      2015-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5859  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 17:43:44  

Additional Information
 Earth MOID = .436395 au 
 Jupiter MOID = 1.56808 au 
 T_jup = 3.200 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO340699  

1009 Sirene (1923 PE)          Discovered 1923-Oct-31 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1900-Oct-15 08:30 00:01 Jupiter 1.89511836158364 1.89511716104461 1.89511956212267 3.81351061828917 3.69445042014338 2415307.854451795 1.06506111819176 16.9603747437814 5.63248615727208 -16.7875483434975 1375083.38289153 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
1906-Nov-13 19:59 < 00:01 Earth 0.442225738812246 0.442225224984104 0.442226252641056 8.24823306733415 8.24750255652127 2417528.332942768 0.279723471669272 122.265646775828 29.9427374321793 -89.4937580306937 1314256.16368097 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
1923-Nov-06 07:33 < 00:01 Earth 0.48234744233367 0.482346383916314 0.48234850076264 8.19680429977978 8.19613035290343 2423729.814602417 0.243749062395732 95.9395444923685 30.8447992836307 -67.577445176916 1292437.33208476 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
1947-May-07 22:48 < 00:01 Jupiter 1.57491559952276 1.57491548142804 1.57491571762381 3.72103261718127 3.57357551340403 2432313.450199845 0.609533386338232 10.2909503866707 5.76169808286386 8.08377714837271 1453583.19865157 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
1949-Jun-08 05:35 < 00:01 Mars 0.048988914493265 0.0489880606416799 0.0489897683512538 10.4780996727912 10.4775419255845 2433075.732865629 0.108206214333568 63.0166481027392 33.1008617537757 -67.7865644589932 189071.121580205 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
2007-Jan-03 00:57 < 00:01 Jupiter 1.58016664631864 1.5801664482281 1.58016684441454 3.73937597872386 3.59316926736868 2454103.539346166 0.519682480863922 10.1622056135068 5.30216937755629 -4.01296666966615 1462745.14911346 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
2053-Jul-26 13:17 < 00:01 Jupiter 1.86978771106332 1.86978715697059 1.8697882651615 3.72965333736328 3.60614818463459 2471110.053442520 0.826265104384188 13.2608977890235 4.72478166582163 10.9230724256569 1466319.21429815 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
2055-Nov-17 10:55 < 00:01 Earth 0.433206721637236 0.433206111259428 0.433207332017355 8.27543495095724 8.27469168225677 2471953.954607791 0.191445622533359 86.1003645274275 29.3016010269984 82.1245992802365 1307475.33229084 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
2066-Sep-05 16:21 < 00:01 Jupiter 1.73817841486817 1.73817776786102 1.73817906187794 3.80974650529619 3.67961397827101 2475899.181414952 0.694801699780305 12.7045672429267 5.33599202971626 -13.1594430710673 1450707.24497447 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
2072-Nov-17 08:41 < 00:01 Earth 0.445129969103794 0.445129378398678 0.445130559814488 8.19632388542017 8.19559354428901 2478163.861510479 0.229861316980312 98.6040261857254 29.173238822689 82.4348311750524 1341554.2545862 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
2089-Nov-10 16:13 < 00:01 Earth 0.462231141516731 0.462230329264478 0.462231953783463 8.17976554126719 8.17906079788099 2484366.175504329 0.279979248320544 116.243049739974 29.8298455589108 -77.8611266440913 1342909.45912019 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
2113-Apr-06 14:39 < 00:01 Jupiter 1.64496044509224 1.64496015297914 1.64496073721809 3.69922018767405 3.55730103097397 2492913.110113845 0.939202727765697 11.1521851684044 5.99257471851242 14.4739710913744 1464447.91536394 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
2172-Dec-04 14:20 00:01 Jupiter 1.55831108148789 1.55831099611015 1.55831116686969 3.68612583080764 3.53559335850348 2514705.097024653 1.06476925492452 10.0047537175016 7.12833824781458 -10.0714725781205 1456016.92101289 T 12 CATAB v2.0c-linF95 2016-Feb-25 17:43:47 2016-Feb-25 17:43
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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