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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4568329958538169 9.5313e-08  
a 2.622102784000701 6.0519e-09 AU
q 1.424239713749027 2.495e-07 AU
i 15.78053283707176 1.415e-05 deg
node 229.4698705425832 4.2707e-05 deg
peri 186.3892645820344 4.4778e-05 deg
M 139.4125876595836 1.218e-05 deg
tp 2456399.917764935285
(2013-Apr-17.41776494)
5.2799e-05 JED
period 1550.861426883748
4.25
5.3691e-06
1.47e-08
d
yr
n .2321290566387821 8.0364e-10 deg/d
Q 3.819965854252374 8.8165e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      440  
   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      .59241  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 13:48:55  

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 1.89511893977058 1.8951173360954 1.89512054344965 3.81351085607036 3.69445070249719 2415307.854493627 1.19897537739345 18.8930446532707 6.82269225091739 -19.509863968902 1260767.24650852 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
1906-Nov-13 19:59 < 00:01 Earth 0.44222576668293 0.442225244105921 0.44222628926117 8.24823444134667 8.24750393070153 2417528.332927776 0.287209174294872 122.654047265527 31.5058039270689 -89.2790737258887 1249006.94929244 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
1923-Nov-06 07:33 < 00:01 Earth 0.482347435071721 0.48234637690612 0.482348493250093 8.19680581123859 8.19613186447638 2423729.814588183 0.250311450806032 96.2068727075147 32.6353495089135 -67.0988922484073 1219029.42967892 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
1947-May-07 22:48 < 00:01 Jupiter 1.57491554496458 1.57491538805167 1.57491570188545 3.72103293141058 3.57357583538585 2432313.450190679 0.766019919897186 11.1294950989631 7.73694512979667 20.1229215865453 1396628.20540907 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
1949-Jun-08 05:35 < 00:01 Mars 0.0489888297135924 0.0489878914335871 0.0489897680013302 10.4781003732835 10.4775426251489 2433075.732834215 0.117269868084874 65.977878290773 35.1881999704284 -64.6596411844103 175096.94394568 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
2007-Jan-03 00:57 < 00:01 Jupiter 1.58016688008041 1.58016656407738 1.58016719609141 3.73937646922705 3.59316979989964 2454103.539338956 0.71550515572455 10.9410977639149 7.67373127997747 -13.2994145720784 1386156.14760329 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
2053-Jul-26 13:17 < 00:01 Jupiter 1.86978722686935 1.86978627389868 1.86978817984628 3.72965364410684 3.60614846935349 2471110.053488276 0.969551350589349 15.6653725937476 5.89268391298598 19.1601508534353 1428892.45651054 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
2055-Nov-17 10:55 < 00:01 Earth 0.433206732427623 0.433206116741023 0.433207348118258 8.27543620270535 8.27469293413583 2471953.954586565 0.211540421706463 86.9209225783715 30.3805281972179 82.5701244647277 1262273.32413656 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
2066-Sep-05 16:21 < 00:01 Jupiter 1.7381789281067 1.73817784284045 1.73818001337726 3.80974693532762 3.67961446261502 2475899.181452318 0.8903752929771 15.1016855605324 6.8630267507897 -21.1089636397605 1340358.65440453 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
2072-Nov-17 08:41 < 00:01 Earth 0.445129985161678 0.445129392798961 0.445130577529062 8.19632510858276 8.19559476758695 2478163.861488577 0.24786103471047 99.2712670031177 30.1283070894346 82.8025869707269 1300059.14083577 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
2089-Nov-10 16:13 < 00:01 Earth 0.462231186836673 0.462230374046481 0.462231999643713 8.17976680726668 8.17906206405867 2484366.175481810 0.296216174703017 117.313456650734 30.924113251156 -77.6739954740136 1294648.041017 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
2113-Apr-06 14:39 00:01 Jupiter 1.644960205047 1.64495976743871 1.64496064266455 3.69922037721359 3.55730120695217 2492913.110126021 1.07175728134894 12.466337167966 7.49320974531817 27.0344361284709 1424977.20814601 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
2172-Dec-04 14:20 00:01 Jupiter 1.5583111519639 1.55831104138894 1.55831126254425 3.68612619083668 3.53559374081411 2514705.097026876 1.19555811917364 10.5265041235929 9.1478479359185 -25.4608976015068 1404066.32446547 T 7 CATAB v2.0c-linF95 2014-Oct-09 13:48:58 2014-Oct-09 13:48
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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