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JPL Small-Body Database Browser
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297 Caecilia
Classification: Main-belt Asteroid          SPK-ID: 2000297
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1402916155560559 4.103e-08  
a 3.166011038185303 1.6341e-08 au
q 2.721846234769981 1.3261e-07 au
i 7.552817396959474 4.5705e-06 deg
node 331.8874156972079 3.1273e-05 deg
peri 353.3685563514449 3.4649e-05 deg
M 2.634288787657244 1.6988e-05 deg
tp 2458985.443364165743
(2020-May-15.94336417)
9.7048e-05 TDB
period 2057.62896070061
5.63
1.5931e-05
4.362e-08
d
yr
n .174958657209715 1.3546e-09 deg/d
Q 3.610175841600626 1.8634e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3859  
   data-arc span      43624 days (119.44 yr)  
   first obs. used      1900-05-02  
   last obs. used      2019-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39165  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:23:30  

Additional Information
 Earth MOID = 1.71021 au 
 Jupiter MOID = 1.73129 au 
 T_jup = 3.175 
[ 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 9.1   n/a MPO435697  
diameter diameter 39.48 km 1.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 4.163 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Cooney, W.R. (2005) Minor Planet Bull. 32, 15-16.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Collaborative Asteroid Lightcurve Link (CALL) (2011) http://www.minorplanetobserver.com/DATA/submissions_results.htm]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.1796   0.018 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6

297 Caecilia          Discovered 1890-Sep-09 by Charlois, A. at Nice
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
1933-May-06 05:28 00:02 Jupiter 1.95529092313477 1.9552900818908 1.95529176438018 3.08576381841385 2.9420312834206 2427198.727504790 1.85161180018659 139.45464263328 28.2091584227959 -79.0557025480743 2922621.42005704 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:23:46 2020-Feb-22 15:23
1944-Feb-25 20:35 00:02 Jupiter 1.78832888519899 1.78832841004675 1.78832936035133 2.90606457239125 2.73823539217985 2431146.357665200 1.51741075629444 120.009162356441 17.6176276605437 -85.0139086051263 3084148.99498599 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:23:46 2020-Feb-22 15:23
1954-Dec-12 22:05 00:01 Jupiter 1.78563506623816 1.78563460651005 1.78563552596637 2.75500475390927 2.57708049717949 2435089.419828329 1.28260605880388 77.4275078474222 12.9859247424837 -78.6198369423317 2969039.00102814 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:23:46 2020-Feb-22 15:23
1965-Aug-29 14:59 00:01 Jupiter 1.93087730496246 1.93087678424701 1.93087782567792 3.0032667759068 2.85346571650697 2439002.124548784 1.05941368681709 44.5621757827664 13.4754057719509 -70.3374373166343 2989867.27042772 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:23:46 2020-Feb-22 15:23
2051-Nov-27 11:59 < 00:01 Jupiter 1.92289477871544 1.92289426790454 1.92289528952635 2.9773402275161 2.82552083184921 2470502.999314391 0.978072219918288 112.299877544381 21.1280451177838 -86.367957970543 3128508.5953413 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:23:46 2020-Feb-22 15:23
2062-Sep-19 04:54 00:01 Jupiter 1.78080992268561 1.78080950066236 1.78081034470885 2.90034931179164 2.73143703607362 2474451.704020421 1.2614366925434 120.641658728412 14.9099658167393 -85.1975787536743 3167747.68179496 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:23:46 2020-Feb-22 15:23
2073-Jul-06 09:00 00:02 Jupiter 1.80626039665719 1.80625988338491 1.80626090992988 2.85391844644683 2.68458121408764 2478394.875010687 1.64893132064916 84.3192434122834 13.3721728107352 -77.0867267339247 3010727.57014826 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:23:46 2020-Feb-22 15:23
2084-Mar-24 08:48 00:02 Jupiter 1.96758218869081 1.9675814492968 1.96758292808504 3.22239105394809 3.08590765855661 2482308.866702844 2.05943191721498 59.9373996120399 15.1683049312992 -65.3380031610992 2664753.93569654 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:23:46 2020-Feb-22 15:23
2170-Jun-27 15:03 00:04 Jupiter 1.89963512233637 1.89963383023873 1.89963641444675 2.89050819654517 2.73189745946532 2513814.127205123 3.77635092081488 298.003813562014 26.4507572695812 -79.0480667016156 2720945.71291231 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:23:46 2020-Feb-22 15:23
2181-Apr-20 11:08 00:04 Jupiter 1.78156866911626 1.78156816224007 1.78156917599245 2.91286524448757 2.74479711832539 2517763.964102792 4.01528156230076 120.364090927725 21.7127951832524 -85.9747229969074 3196315.45143227 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:23:46 2020-Feb-22 15:23
2192-Feb-06 02:43 00:05 Jupiter 1.82926440549593 1.82926336013016 1.82926545086669 2.97059146517968 2.81039743354293 2521707.612944247 4.56171778905899 179.201901282251 13.8594406543096 -75.191474835072 2869966.11003895 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:23:46 2020-Feb-22 15:23

Alternate Designations
 1935 PB = 1947 SB = 1955 BK1 = A924 RA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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