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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4568329931669886 9.5508e-08  
a 2.622102784205435 6.0652e-09 AU
q 1.424239720905372 2.5002e-07 AU
i 15.78053276949834 1.4174e-05 deg
node 229.4698703102375 4.2752e-05 deg
peri 186.3892643009793 4.4826e-05 deg
M 139.4125877213656 1.2181e-05 deg
tp 2456399.917764598791
(2013-Apr-17.41776460)
5.2805e-05 JED
period 1550.861427065385
4.25
5.3809e-06
1.473e-08
d
yr
n .2321290566115952 8.054e-10 deg/d
Q 3.819965847505498 8.8359e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      33086 days (90.58 yr)  
   first obs. used      1923-10-31  
   last obs. used      2014-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59757  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:15:09  

Additional Information
 Earth MOID = .436214 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 13.8 mag n/a MPO265961  

1009 Sirene (1923 PE)          Discovered 1923-Oct-31 by Reinmuth, K. at Heidelberg (024)
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 1.89511894968452 1.8951173443981 1.89512055497197 3.81351074287561 3.69445058628742 2415307.854499302 1.20038460340978 18.9166839333971 6.82505087650186 -19.4993193509034 1259466.03912653 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
1906-Nov-13 19:59 < 00:01 Earth 0.442225773269425 0.442225249812281 0.442226296728317 8.24823438356841 8.24750387292904 2417528.332930593 0.287245458788604 122.656322327981 31.5563472419407 -89.2841598565029 1247007.76404315 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
1923-Nov-06 07:33 < 00:01 Earth 0.48234742867061 0.48234637049181 0.482348486861 8.19680577760029 8.19613183082637 2423729.814589078 0.250409826893212 96.2081212998247 32.6798044141505 -67.0993265806277 1217407.6029687 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
1947-May-07 22:48 < 00:01 Jupiter 1.57491554844443 1.57491539173799 1.57491570516022 3.72103290668336 3.57357580997084 2432313.450189921 0.767404473188264 11.1474272436844 7.76010155435206 20.0898751095794 1393722.43577532 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
1949-Jun-08 05:35 < 00:01 Mars 0.0489888270086748 0.0489878878802768 0.0489897661447433 10.4781003357548 10.4775425875874 2433075.732832646 0.117315850920029 65.9861378117946 35.2541467446084 -64.6750190748941 174802.67219338 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
2007-Jan-03 00:57 < 00:01 Jupiter 1.58016689307599 1.58016657593101 1.58016721022902 3.73937643218896 3.59316976258136 2454103.539345073 0.717417399846801 10.9680724824129 7.68842706007873 -13.4360243700798 1383548.83947958 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
2053-Jul-26 13:17 < 00:01 Jupiter 1.86978721165303 1.86978625538837 1.86978816792397 3.7296536115626 3.60614843467236 2471110.053490485 0.97111113549574 15.7028840943648 5.91757590655172 19.1948255936366 1425274.33392825 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
2055-Nov-17 10:55 < 00:01 Earth 0.433206737716915 0.433206121687462 0.433207353750385 8.27543613931084 8.2746928707447 2471953.954586226 0.211673022125519 86.9478539794726 30.4377037493819 82.5914716800443 1259959.86515179 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
2066-Sep-05 16:21 < 00:01 Jupiter 1.73817895019454 1.73817786114647 1.73818003924695 3.80974696098301 3.67961449086062 2475899.181452039 0.893112250051952 15.1411432477826 6.86829209760439 -21.1279532118854 1338272.32079551 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
2072-Nov-17 08:41 < 00:01 Earth 0.445129990354272 0.445129397724332 0.445130582989575 8.19632508894582 8.19559474795678 2478163.861487144 0.248012093156592 99.3043702976795 30.188474621426 82.8228495693589 1297523.66965324 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
2089-Nov-10 16:13 < 00:01 Earth 0.462231194961304 0.462230380998586 0.462232008940877 8.17976675974059 8.17906201654087 2484366.175480464 0.296414553817032 117.33980068342 30.9801250958103 -77.6585158438561 1292243.33837325 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
2113-Apr-06 14:39 00:01 Jupiter 1.64496020200379 1.64495976423485 1.64496063976811 3.69922034427687 3.55730117243365 2492913.110124122 1.07310326102752 12.4912447323943 7.51969021136577 27.0540792384798 1421484.57357067 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
2172-Dec-04 14:20 00:01 Jupiter 1.55831115920381 1.55831104851963 1.55831126989112 3.68612618895136 3.53559373956278 2514705.097022223 1.19675465539954 10.5542602623821 9.16391091245054 -25.5942110597746 1401047.40039509 T 6 CATAB v2.0c-linF95 2014-Jun-16 13:15:13 2014-Jun-16 13:15
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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