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1009 Sirene (A923 UE)
Classification: Mars-crossing Asteroid          SPK-ID: 2001009
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4535679414237072 5.717e-08  
a 2.628797377033669 4.0343e-09 au
q 1.436459162312467 1.4953e-07 au
i 15.73128351829863 7.6331e-06 deg
node 229.4176047194557 1.867e-05 deg
peri 186.4364835766492 1.9574e-05 deg
M 243.2194762077634 8.7152e-06 deg
tp 2459505.512367717749
(2021-Oct-18.01236772)
3.8272e-05 TDB
period 1556.804563591755
4.26
3.5837e-06
9.812e-09
d
yr
n .2312428987036319 5.3232e-10 deg/d
Q 3.821135591754871 5.8641e-09 au
  Orbit Determination Parameters
   # obs. used (total)      919  
   data-arc span      35293 days (96.63 yr)  
   first obs. used      1923-10-31  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52097  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:24:49  

Additional Information
 Earth MOID = .44883 au 
 Jupiter MOID = 1.56637 au 
 T_jup = 3.199 
[ show covariance matrix ]

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

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

1009 Sirene (A923 UE)          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 08:32 < 00:01 Jupiter 1.89511998809777 1.89511843971692 1.89512153647872 3.81350937827376 3.69444924399799 2415307.855246160 0.968508223359921 90.7503011005948 67.145982022873 -49.7630009649717 1801467.57489094 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25
1906-Nov-13 19:59 < 00:01 Earth 0.442225651071097 0.442225198611709 0.442226103530786 8.24823083174025 8.24750032058441 2417528.332684936 0.280518515384244 209.910358952075 22.4744300775108 89.4522682357484 2258217.2937776 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25
1923-Nov-06 07:33 < 00:01 Earth 0.482349128132193 0.482347635993364 0.482350620278343 8.1967994689832 8.19612552406515 2423729.814391341 0.237164552258229 134.637718815266 41.0230418409585 -61.0469262952495 1436718.9299916 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25
1947-May-07 22:49 < 00:01 Jupiter 1.57491541832071 1.57491492384847 1.57491591279582 3.72103175650545 3.57357459989825 2432313.450417669 0.358255693028837 173.744298190397 23.995519183799 85.8877865823124 3025827.73075054 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25
1949-Jun-08 05:36 < 00:01 Mars 0.0489884293129641 0.0489877408632819 0.0489891178047812 10.4780877327771 10.4775299794107 2433075.733130605 0.386547650294373 100.200216330027 22.268832803374 -74.4871163745488 314927.645079052 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25
2007-Jan-03 00:57 < 00:01 Jupiter 1.58016658329867 1.58016612311374 1.58016704348467 3.73937511367305 3.59316836116916 2454103.539318896 0.222283647622239 101.590390755813 20.8038238482097 82.5075929519046 2710520.51994654 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25
2053-Jul-26 13:17 < 00:01 Jupiter 1.8697880209014 1.86978715244831 1.8697888893647 3.7296525024616 3.60614734195498 2471110.053235180 0.423548491859417 384.410105440652 35.9390557342159 -85.7683910927579 2377965.50264563 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25
2055-Nov-17 10:55 < 00:01 Earth 0.433206876492287 0.433206272665454 0.43320748033222 8.27543229467258 8.27468902599921 2471953.954687267 0.130871863486077 132.175466756689 11.5486433406935 77.8073242783421 3057100.82814991 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25
2066-Sep-05 16:21 < 00:01 Jupiter 1.73817797614821 1.73817733737935 1.73817861491706 3.80974549898642 3.67961290294572 2475899.181171660 0.3874276665664 81.8280504055336 31.2046994837384 89.7970691820909 2040120.94442296 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25
2072-Nov-17 08:41 < 00:01 Earth 0.445130212620423 0.445129583738206 0.445130841521593 8.19632079429277 8.19559045328571 2478163.861616513 0.161302538975556 157.789476424815 10.9883179182957 79.2452437483717 3042012.12872994 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25
2089-Nov-10 16:13 < 00:01 Earth 0.46223030721539 0.462229509676263 0.462231104760218 8.17976334416825 8.17905859932066 2484366.175633586 0.201756277766918 136.956324750517 31.2735233818962 -79.3816474966381 1852417.15405293 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25
2113-Apr-06 14:38 < 00:01 Jupiter 1.64496082245166 1.64496000237045 1.64496164253389 3.69921934345934 3.55730018628531 2492913.109732585 0.604408031402218 237.271517058085 41.847013521607 87.8989867454166 2744260.08698659 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25
2172-Dec-04 14:19 < 00:01 Jupiter 1.55831103792356 1.5583105625458 1.55831151330389 3.68612478321426 3.53559226200954 2514705.096575325 0.719881493140536 124.210312942547 19.6614751970012 82.0117839187625 2961048.06326839 T 27 CATAB v2.0f-lin.ifort 2020-Jun-23 15:24:56 2020-Jun-23 15:25

Alternate Designations
 A923 UE = 2019 FK8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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