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JPL Small-Body Database Browser
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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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1402916213353142 4.1087e-08  
a 3.166011040362803 1.6345e-08 au
q 2.7218462183448 1.3274e-07 au
i 7.552816758166574 4.5792e-06 deg
node 331.887414898442 3.1259e-05 deg
peri 353.3685581918663 3.4632e-05 deg
M 2.63428679239208 1.6977e-05 deg
tp 2458985.443375554419
(2020-May-15.94337555)
9.6987e-05 TDB
period 2057.628962823384
5.63
1.5934e-05
4.362e-08
d
yr
n .174958657029217 1.3548e-09 deg/d
Q 3.610175862380806 1.8638e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3865  
   data-arc span      43826 days (119.99 yr)  
   first obs. used      1900-05-02  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38929  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:02:46  

Additional Information
 Earth MOID = 1.71021 au 
 Jupiter MOID = 1.73129 au 
 T_jup = 3.175 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455828.5 (2011-Sep-24.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .143894709466596 4.0736e-08  
q 2.707327443746033 1.3185e-07 au
tp 2454881.205844747029
(2009-Feb-18.70584475)
8.8829e-05 TDB
node 332.1388979551865 3.1273e-05 deg
peri 354.5814158730117 3.4541e-05 deg
i 7.556112155890174 4.58e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3865  
   data-arc span      43826 days (119.99 yr)  
   first obs. used      1900-05-02  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38929  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:02:46  

Additional Information
 Jupiter MOID = 1.73129 au 
 T_jup = 3.175 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.659415905473159E-15 -5.343215007138411E-15 1.832351395791214E-14 -3.403108438451463E-16 -2.433508813442192E-15 -8.50660989141427E-17
q -5.343215007138411E-15 1.738331590158447E-14 -5.427114295792797E-15 1.529626906054151E-15 2.95027895081384E-14 4.831189222060118E-16
tp 1.832351395791214E-14 -5.427114295792797E-15 7.890667630486297E-9 -4.366801124666133E-12 1.323521489325661E-9 9.95334598057998E-13
node -3.403108438451463E-16 1.529626906054151E-15 -4.366801124666133E-12 9.780033576489596E-10 -9.698382161003715E-10 -2.998315472945766E-12
peri -2.433508813442192E-15 2.95027895081384E-14 1.323521489325661E-9 -9.698382161003715E-10 1.19309215131511E-9 3.132462021414735E-12
i -8.50660989141427E-17 4.831189222060118E-16 9.95334598057998E-13 -2.998315472945766E-12 3.132462021414735E-12 2.097595159239737E-11

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 1.95529087571204 1.95529003311846 1.95529171830696 3.08576363276284 2.94203108512846 2427198.727459916 1.8525599018605 139.475135524077 28.2374392059468 -79.0392118848797 2915716.46160379 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:03:01 2020-May-20 01:03
1944-Feb-25 20:35 00:02 Jupiter 1.78832885601649 1.7883283795461 1.78832933248698 2.90606438328667 2.73823518866225 2431146.357617653 1.51815954525713 120.059375250868 17.6585868195468 -84.9997473112449 3076937.65442853 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:03:01 2020-May-20 01:03
1954-Dec-12 22:04 00:01 Jupiter 1.78563505686222 1.78563459756641 1.78563551615824 2.75500464041528 2.57708037488327 2435089.419788739 1.28316582400699 77.4178314559651 12.9788073646681 -78.6327416986873 2968421.3227401 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:03:01 2020-May-20 01:03
1965-Aug-29 14:59 00:01 Jupiter 1.9308773067292 1.93087678611934 1.93087782733907 3.0032668262865 2.85346576967217 2439002.124523397 1.05989137999625 44.6349699930177 13.4627895799882 -70.3421784560107 2993397.08113153 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:03:01 2020-May-20 01:03
2051-Nov-27 11:59 < 00:01 Jupiter 1.92289477687741 1.92289426620619 1.92289528754874 2.97734007355303 2.82552066946446 2470502.999352240 0.979033853398118 112.41171349396 21.1205610868958 -86.3677855952993 3126302.29380341 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:03:01 2020-May-20 01:03
2062-Sep-19 04:54 00:01 Jupiter 1.7808099128506 1.78080949089609 1.78081033480521 2.90034916231816 2.73143687639498 2474451.704066743 1.2625804416252 120.700534285041 14.9029037262576 -85.1909354352978 3165485.76471884 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:03:01 2020-May-20 01:03
2073-Jul-06 09:00 00:02 Jupiter 1.8062603680041 1.80625985402563 1.80626088198298 2.85391835634127 2.68458111552747 2478394.875059070 1.65038233734587 84.3384283243552 13.369690744697 -77.0670719152946 3007658.82161074 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:03:01 2020-May-20 01:03
2084-Mar-24 08:48 00:02 Jupiter 1.96758215242192 1.96758141241367 1.96758289243038 3.22239095008181 3.08590754752507 2482308.866773610 2.06105770445866 60.0050788371798 15.1642408082761 -65.3365023501814 2663792.73867187 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:03:01 2020-May-20 01:03
2170-Jun-27 15:03 00:04 Jupiter 1.89963516198147 1.89963386998585 1.89963645398984 2.89050803430229 2.7318972912091 2513814.127326653 3.77922246197142 298.255268635626 26.4486499444642 -79.0549000777198 2717386.64629941 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:03:01 2020-May-20 01:03
2181-Apr-20 11:08 00:04 Jupiter 1.78156866832186 1.78156816194047 1.78156917470325 2.91286508190653 2.74479694571202 2517763.964234879 4.01832669036711 120.448428051011 21.6931021626535 -85.9695282254831 3193607.39638361 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:03:01 2020-May-20 01:03
2192-Feb-06 02:43 00:05 Jupiter 1.82926434821251 1.82926330136961 1.82926539506051 2.9705913516011 2.81039730833087 2521707.613084204 4.56516494082173 179.323559310316 13.85137080885 -75.1816228286486 2869037.45708119 T 38 CATAB v2.0f-lin.ifort 2020-May-20 01:03:01 2020-May-20 01:03

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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