+ 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 104 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04072418749274565 3.5559e-08   a 2.215444462086845 4.613e-09 au q 2.125222286433055 7.8868e-08 au i 4.234749806108445 3.9878e-06 deg node 175.4135022690524 4.7068e-05 deg peri 349.1201098205709 6.5551e-05 deg M 267.7880970965745 4.6066e-05 deg tp 2459309.013527524447 (2021-Apr-04.51352752) 0.00015425 TDB period 1204.452640188113 3.30 3.7619e-06 1.03e-08 d yr n .2988909551012107 9.3352e-10 deg/d Q 2.305666637740635 4.8009e-09 au   Orbit Determination Parameters    # obs. used (total)      3081      data-arc span      44467 days (121.74 yr)      first obs. used      1899-02-17      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44807      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:53:42   Additional Information  Earth MOID = 1.13172 au   Jupiter MOID = 2.65748 au   T_jup = 3.649  [ hide covariance matrix ] Orbital Elements at Epoch 2456151.5 (2012-Aug-12.0) TDB Reference: JPL 104 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04073929705363097 3.5685e-08   q 2.125055313854886 7.9166e-08 au tp 2455698.578979739064 (2011-May-17.07897974) 0.00015269 TDB node 175.4992034437333 4.7075e-05 deg peri 349.9367957614234 6.5455e-05 deg i 4.234083504485231 3.9886e-06 deg   Orbit Determination Parameters    # obs. used (total)      3081      data-arc span      44467 days (121.74 yr)      first obs. used      1899-02-17      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44807      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:53:42   Additional Information  Jupiter MOID = 2.65748 au   T_jup = 3.649  Orbit Covariance (6×6)   e q tp node peri i e 1.273444399291438E-15 -2.820624329387295E-15 1.316491926374341E-12 -9.664308137998042E-16 4.005861071338387E-13 -6.694521572136908E-17 q -2.820624329387295E-15 6.267307226513926E-15 -2.886363024238413E-12 1.80158471033382E-15 -8.777690329049006E-13 1.893209208630167E-16 tp 1.316491926374341E-12 -2.886363024238413E-12 2.331430521589933E-8 -1.794568524828804E-12 6.954480719160609E-9 -1.398834213441752E-13 node -9.664308137998042E-16 1.80158471033382E-15 -1.794568524828804E-12 2.216095834445616E-9 -2.209875510566869E-9 3.607211325644436E-11 peri 4.005861071338387E-13 -8.777690329049006E-13 6.954480719160609E-9 -2.209875510566869E-9 4.284362404242538E-9 -3.603248029177323E-11 i -6.694521572136908E-17 1.893209208630167E-16 -1.398834213441752E-13 3.607211325644436E-11 -3.603248029177323E-11 1.590880916952567E-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. 2020-October); 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 104 CATAB v2.0f-lin.ifort 2020-Dec-18 01:53:50 2020-Dec-18 01:53 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 104 CATAB v2.0f-lin.ifort 2020-Dec-18 01:53:50 2020-Dec-18 01:53 Alternate Designations  A899 DA = 1930 YG = 1930 YJ = 1947 WC  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-28 00:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin