+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   443 Photographica (A899 DA) Classification: Main-belt Asteroid          SPK-ID: 2000443 [ 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 100 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04072419272103309 3.6314e-08   a 2.215444462702928 4.7284e-09 au q 2.125222275441069 8.0344e-08 au i 4.234750463124836 4.1155e-06 deg node 175.4135060663123 4.7571e-05 deg peri 349.1201121712476 6.6804e-05 deg M 267.7880902469969 4.7586e-05 deg tp 2459309.013550569780 (2021-Apr-04.51355057) 0.00015938 TDB period 1204.452640690525 3.30 3.8559e-06 1.056e-08 d yr n .2988909549765347 9.5687e-10 deg/d Q 2.305666649964788 4.9209e-09 au   Orbit Determination Parameters    # obs. used (total)      2888      data-arc span      44181 days (120.96 yr)      first obs. used      1899-02-17      last obs. used      2020-02-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46053      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 15:27:29   Additional Information  Earth MOID = 1.13172 au   Jupiter MOID = 2.65748 au   T_jup = 3.649  [ hide covariance matrix ] Orbital Elements at Epoch 2455945.5 (2012-Jan-19.0) TDB Reference: JPL 100 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0406568389307671 3.6492e-08   q 2.125505404655019 8.0756e-08 au tp 2455699.066283419423 (2011-May-17.56628342) 0.00015736 TDB node 175.5029857087467 4.7576e-05 deg peri 350.1032324950143 6.6722e-05 deg i 4.234069058525479 4.1164e-06 deg   Orbit Determination Parameters    # obs. used (total)      2888      data-arc span      44181 days (120.96 yr)      first obs. used      1899-02-17      last obs. used      2020-02-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46053      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 15:27:29   Additional Information  Jupiter MOID = 2.65748 au   T_jup = 3.649  Orbit Covariance (6×6)   e q tp node peri i e 1.331652509465754E-15 -2.942242210664405E-15 1.584625053382837E-12 -6.651206226741278E-16 4.771187746247196E-13 4.466933754940337E-17 q -2.942242210664405E-15 6.521471495947635E-15 -3.445072094635333E-12 1.189117406596084E-15 -1.037226525981571E-12 -4.835357047447286E-17 tp 1.584625053382837E-12 -3.445072094635333E-12 2.476298251085802E-8 -2.862989749508193E-12 7.371995494742334E-9 4.133414843854075E-14 node -6.651206226741278E-16 1.189117406596084E-15 -2.862989749508193E-12 2.263510873646407E-9 -2.257472739034226E-9 4.252135650853474E-11 peri 4.771187746247196E-13 -1.037226525981571E-12 7.371995494742334E-9 -2.257472739034226E-9 4.4518562612639E-9 -4.241407260820019E-11 i 4.466933754940337E-17 -4.835357047447286E-17 4.133414843854075E-14 4.252135650853474E-11 -4.241407260820019E-11 1.694502578675265E-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 10.1   n/a MPO502157 IRAS observations used: 22 diameter diameter 25.504 km 0.562 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 19.795 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Higgins, D.; Pravec, P.; Kusnirak, P.; Hornoch, K.; Brinsfield, J.W.; Allen, B.; Warner, B.D. (2008) Minor Planet Bull. 35, 123-126.] geometric albedo albedo 0.210   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   B-V BV 0.902   0.025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=4.55, mean=7.11, max.=9.66) deg. U-B UB 0.479   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=4.55, mean=7.11, max.=9.66) deg. Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo SMASSII spectral type spec_B Sl   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 443 Photographica (A899 DA)          Discovered 1899-Feb-17 by Wolf, M. and Schwassmann, A. at Heidelberg Reference: DISCOVERY.DB Last 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 1996-Jul-15 15:43 < 00:01 Juno 0.0208068063198037 0.0208059954244703 0.020807617215963 5.7632255175762 5.76322541612086 2450280.155099233 0.190394321449219 41.3615241615097 26.9955624733418 16.2800681320026 79099.0105470846 T 100 CATAB v2.0f-lin.ifort 2020-Feb-22 15:27:42 2020-Feb-22 15:27 2131-Oct-08 11:54 < 00:01 Juno 0.021669351025459 0.0216666516655915 0.0216720509094555 5.55939378329417 5.55939368230551 2499671.995734578 0.340759284306513 217.89119281271 26.7664734508549 52.4274786177679 96364.5485322028 T 100 CATAB v2.0f-lin.ifort 2020-Feb-22 15:27:42 2020-Feb-22 15:27 Alternate Designations  A899 DA = 1930 YG = 1930 YJ = 1947 WC  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-15 09:25 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin