+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   482 Petrina (A902 EH) Classification: Main-belt Asteroid          SPK-ID: 2000482 [ 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 56 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09716721096208779 3.6767e-08   a 3.000252557761999 1.1562e-08 au q 2.708726384542395 1.0802e-07 au i 14.46931878053535 3.7331e-06 deg node 179.3836145389269 1.6241e-05 deg peri 87.48548935497884 2.5211e-05 deg M 192.0395594196833 2.009e-05 deg tp 2459886.104170922839 (2022-Nov-02.60417092) 0.00010693 TDB period 1898.170190734688 5.20 1.0972e-05 3.004e-08 d yr n .1896563341670968 1.0963e-09 deg/d Q 3.291778730981603 1.2685e-08 au   Orbit Determination Parameters    # obs. used (total)      2921      data-arc span      43149 days (118.14 yr)      first obs. used      1902-03-04      last obs. used      2020-04-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41594      source      ORB      producer      Otto Matic      solution date      2020-May-20 01:06:36   Additional Information  Earth MOID = 1.74349 au   Jupiter MOID = 1.87253 au   T_jup = 3.198  [ 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 8.9   n/a MPO502157 IRAS observations used: 6 diameter diameter 45.751 km 0.304 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 11.7922 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Garlitz, J. (2012) http://eoni.com/~garlitzj/Period.htm] [Pilcher, F.; Ferrero, A.; Oey, J. (2012) Minor Planet Bull. 39, 228-229.] [Pilcher, F. (2014) Minor Planet Bull. 41, 47-49.] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] geometric albedo albedo 0.246   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   B-V BV 0.871   0.038 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=14.12 deg. U-B UB 0.455   0.043 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=14.12 deg. Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices 482 Petrina (A902 EH)          Discovered 1902-Mar-03 by Wolf, M. 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 1905-Feb-28 08:16 00:02 Jupiter 1.87505791383914 1.87505743634207 1.87505839133888 4.2417290879466 4.13386052952945 2416904.844302306 1.81984803427335 172.210639617233 17.1122811191312 83.4273998525311 3569762.25027448 T 56 CATAB v2.0f-lin.ifort 2020-May-20 01:06:49 2020-May-20 01:06 1988-Apr-24 14:15 < 00:01 Jupiter 1.88903337965937 1.88903296792752 1.88903379139133 4.08257080020719 3.97122217563035 2447276.093947107 0.442038989936607 54.9568523463079 18.4106375745632 81.2871255885533 3753213.11344244 T 56 CATAB v2.0f-lin.ifort 2020-May-20 01:06:49 2020-May-20 01:06 2034-Jun-29 08:26 < 00:01 Jupiter 1.99318366806652 1.99318329203479 1.99318404409836 5.22183691853686 5.1398114384048 2464142.851485148 0.384192326466648 51.3607137541481 15.9429284160176 -80.3110555629657 4971916.01990129 T 56 CATAB v2.0f-lin.ifort 2020-May-20 01:06:49 2020-May-20 01:06 2071-Jun-22 19:51 00:01 Jupiter 1.90817648835361 1.90817607367969 1.90817690302775 3.88459172799526 3.76859002014755 2477650.326873323 1.06515197009936 96.2988240020684 18.7800230352957 83.4867425599753 2974208.52282089 T 56 CATAB v2.0f-lin.ifort 2020-May-20 01:06:49 2020-May-20 01:06 2117-Aug-21 17:13 00:02 Jupiter 1.97682666327115 1.97682588122316 1.97682744532397 5.18784867262656 5.10458833979283 2494511.217503645 1.69586445582615 175.54268869054 16.0309716785667 -78.8875720733454 4869454.09760277 T 56 CATAB v2.0f-lin.ifort 2020-May-20 01:06:49 2020-May-20 01:06 2154-Aug-22 11:27 00:03 Jupiter 1.93433778599761 1.93433716135039 1.93433841064846 3.6704788693354 3.5491745442615 2508025.977184829 2.58771747436392 179.200962852344 20.5868320538551 78.0821587777015 2540126.19639796 T 56 CATAB v2.0f-lin.ifort 2020-May-20 01:06:49 2020-May-20 01:06 2200-Oct-16 17:21 00:03 Jupiter 1.9556559668243 1.95565488506779 1.95565704859838 5.11719261688113 5.03184178295417 2524882.222661205 3.02757812658611 314.815051652763 15.9181499260944 -81.1878691803829 4787862.46028727 T 56 CATAB v2.0f-lin.ifort 2020-May-20 01:06:49 2020-May-20 01:06 Alternate Designations  A902 EH = 1949 HP1 = 1956 TK = 1975 FY = 1987 SJ12  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-03 23:20 UT (server date/time)   Site Manager:   Ryan S. 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