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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4568329933170459 9.5044e-08  
a 2.622102779124293 5.2408e-09 AU
q 1.424239717751998 2.4886e-07 AU
i 15.78052987040362 1.3921e-05 deg
node 229.4698989961053 3.5495e-05 deg
peri 186.3892490261796 3.7113e-05 deg
M 139.4125835726387 1.1519e-05 deg
tp 2456399.917784217015
(2013-Apr-17.41778422)
4.9654e-05 JED
period 1550.861422557469
4.25
4.6495e-06
1.273e-08
d
yr
n .2321290572863288 6.9593e-10 deg/d
Q 3.819965840496589 7.6349e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      33443 days (91.56 yr)  
   first obs. used      1923-10-31  
   last obs. used      2015-05-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58834  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:32:33  

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
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 1.89511836690222 1.89511701492818 1.89511971888056 3.81351037970846 3.69445017421351 2415307.854473376 1.11679515130807 17.727496388715 6.19371506118356 -17.4825323992589 1306498.20951512 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
1906-Nov-13 19:59 < 00:01 Earth 0.442225772388177 0.442225252770268 0.442226292007409 8.24823281444265 8.24750230366284 2417528.332941744 0.282561318650527 122.399589922337 30.9772873737554 -89.4033902023385 1270346.11009296 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
1923-Nov-06 07:33 < 00:01 Earth 0.482347489031633 0.482346433145474 0.482348544929381 8.19680396664581 8.19613001980732 2423729.814600246 0.24612372032008 96.0565556924132 31.9691086234444 -67.3383461910987 1245871.66052916 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
1947-May-07 22:48 < 00:01 Jupiter 1.5749156334626 1.57491549939052 1.57491576754448 3.7210325145098 3.57357540973931 2432313.450203037 0.668545325143899 10.7406541550352 6.56648163316524 11.7384413069413 1409954.48537824 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
1949-Jun-08 05:35 < 00:01 Mars 0.0489888853455665 0.0489879942277242 0.0489897764701764 10.4780990714914 10.4775413239209 2433075.732874037 0.111538553523052 64.0746390423257 34.1715537264943 -66.4529233404176 182048.663795276 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
2007-Jan-03 00:57 < 00:01 Jupiter 1.58016667193399 1.58016642223102 1.58016692164246 3.73937586311098 3.5931691494698 2454103.539355615 0.597772994473723 10.5792170118821 6.28354594994922 -6.0027827815772 1409908.6372404 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
2053-Jul-26 13:17 < 00:01 Jupiter 1.86978774199874 1.86978705419911 1.86978842980429 3.72965326932265 3.60614811634204 2471110.053449220 0.880428152309694 14.2726121597406 5.2601789251598 14.1757174068596 1433742.06479291 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
2055-Nov-17 10:55 < 00:01 Earth 0.433206752530058 0.433206139398941 0.433207365664477 8.27543472721334 8.27469145854578 2471953.954607147 0.199384812696443 86.4491316683169 30.0984526375049 82.4233532243528 1273715.76522026 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
2066-Sep-05 16:21 < 00:01 Jupiter 1.73817842679428 1.73817760515872 1.73817924843412 3.80974622581074 3.67961368980999 2475899.181441014 0.772774330956364 13.6714980671847 6.04745744337639 -15.8665957716343 1383102.87205792 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
2072-Nov-17 08:41 < 00:01 Earth 0.445129996904099 0.445129405387707 0.445130588424057 8.1963236979634 8.19559335686115 2478163.861508952 0.237064804651031 98.9254937433208 29.9119364926365 82.6881056637792 1309153.82805778 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
2089-Nov-10 16:13 < 00:01 Earth 0.462231186165849 0.462230372020593 0.462232000327929 8.179765326353 8.17906058301636 2484366.175503708 0.286125555087872 116.700447160338 30.6237826451402 -77.6941596832037 1307418.41708488 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
2113-Apr-06 14:39 < 00:01 Jupiter 1.64496047709719 1.64496013844024 1.64496081576883 3.69922008572166 3.55730092777048 2492913.110115630 0.988001100760056 11.7267951894763 6.64675402111851 18.6954349987731 1430279.33191325 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
2172-Dec-04 14:20 00:01 Jupiter 1.55831111195208 1.55831100992027 1.55831121398795 3.68612573047044 3.53559325689977 2514705.097037250 1.11356373375007 10.2968285968474 7.95033359066605 -12.019134729735 1414548.53359568 T 10 CATAB v2.0c-linF95 2015-Jun-04 15:32:36 2015-Jun-04 15:32
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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