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297 Caecilia (A890 RA)
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1402916309956561 3.9571e-08  
a 3.166011032318764 1.3572e-08 au
q 2.721846180844524 1.2566e-07 au
i 7.55281776079352 4.5023e-06 deg
node 331.887399516363 2.84e-05 deg
peri 353.3685676982751 3.141e-05 deg
M 2.634295602396341 1.3598e-05 deg
tp 2458985.443325257025
(2020-May-15.94332526)
7.7709e-05 TDB
period 2057.628954981506
5.63
1.3231e-05
3.622e-08
d
yr
n .174958657696006 1.125e-09 deg/d
Q 3.610175883793004 1.5476e-08 au
  Orbit Determination Parameters
   # obs. used (total)      4242  
   data-arc span      44005 days (120.48 yr)  
   first obs. used      1900-05-02  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37608  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:31:10  

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 (A890 RA)          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 1.95529100466747 1.95529024896611 1.95529176036973 3.08576375385735 2.94203122185004 2427198.727622466 1.65110103108216 120.607431767066 26.1071139004732 -79.2331246701599 2974535.51715648 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:31:22 2020-Nov-13 04:31
1944-Feb-25 20:35 00:01 Jupiter 1.78832885974661 1.78832838429551 1.78832933519781 2.9060645465262 2.73823536226768 2431146.357750363 1.36022374008776 108.668831484217 17.4800261737221 -84.5986683681905 3081160.23547625 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:31:22 2020-Nov-13 04:31
1954-Dec-12 22:05 00:01 Jupiter 1.78563496890964 1.7856345876298 1.78563535018957 2.75500477087285 2.57708050528146 2435089.419905032 1.15329253026304 71.1070475157137 11.1428568210896 -80.024955591961 3321014.67375963 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:31:22 2020-Nov-13 04:31
1965-Aug-29 14:59 < 00:01 Jupiter 1.93087723156201 1.93087679238554 1.93087767073847 3.00326652070054 2.85346544205889 2439002.124611464 0.963465597988655 44.0690078216139 11.4410502108502 -71.4669811160735 3866469.49030876 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:31:22 2020-Nov-13 04:31
2051-Nov-27 11:59 < 00:01 Jupiter 1.92289475041901 1.92289427392266 1.92289522691537 2.97734003064612 2.825520622107 2470502.999245766 0.838833755004919 103.996963581026 19.5072475469473 -86.1680169658447 3209083.92280435 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:31:22 2020-Nov-13 04:31
2062-Sep-19 04:54 00:01 Jupiter 1.78080985226486 1.78080947851937 1.78081022601046 2.90034921434939 2.7314369257195 2474451.703931078 1.08570246187893 109.896355037777 12.9228287088288 -84.9079589852613 3352806.6406948 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:31:22 2020-Nov-13 04:31
2073-Jul-06 09:00 00:01 Jupiter 1.80626034446449 1.80625983307588 1.80626085585351 2.85391842996556 2.68458119151937 2478394.874886370 1.42815589311237 74.6706875049404 12.1162519091223 -75.3093589395152 3189939.26994194 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:31:22 2020-Nov-13 04:31
2084-Mar-24 08:48 00:02 Jupiter 1.96758220209407 1.96758147875717 1.96758292543107 3.22239115688177 3.08590776699312 2482308.866571637 1.77988357257397 54.7662839942339 14.379182940288 -63.1795197542401 2682851.2730434 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:31:22 2020-Nov-13 04:31
2170-Jun-27 15:03 00:03 Jupiter 1.89963500446706 1.89963387444287 1.89963613450108 2.89050797259021 2.73189721238056 2513814.126959223 3.30009445507464 267.155460453562 23.8062481537931 -79.3436610282213 2791362.39754766 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:31:22 2020-Nov-13 04:31
2181-Apr-20 11:08 00:04 Jupiter 1.78156858010195 1.78156816517449 1.78156899502952 2.91286515778446 2.74479701765887 2517763.963823507 3.50985683588591 110.212001457807 17.4111554132918 -85.5473148839912 3371862.98703892 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:31:22 2020-Nov-13 04:31
2192-Feb-06 02:42 00:04 Jupiter 1.82926441611353 1.82926341031485 1.82926542191606 2.97059151843965 2.81039749079506 2521707.612646411 3.9923142555855 157.50235325013 12.088614206413 -73.9999640183761 3164400.25214845 T 40 CATAB v2.0f-lin.ifort 2020-Nov-13 04:31:22 2020-Nov-13 04:31

Alternate Designations
 A890 RA = 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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