+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2615 Saito (1951 RJ) Classification: Main-belt Asteroid          SPK-ID: 2002615 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1513832228837826 3.6181e-08   a 3.178977055841295 1.9074e-08 au q 2.697733263654441 1.1001e-07 au i 4.245777699784786 3.6918e-06 deg node 322.6167655898856 4.9609e-05 deg peri 343.8323173764563 5.1305e-05 deg M 134.3738270679291 1.4874e-05 deg tp 2458427.745215612994 (2018-Nov-05.24521561) 8.2851e-05 TDB period 2070.282051568642 5.67 1.8632e-05 5.101e-08 d yr n .1738893498725113 1.565e-09 deg/d Q 3.660220848028148 2.1961e-08 au   Orbit Determination Parameters    # obs. used (total)      2379      data-arc span      25340 days (69.38 yr)      first obs. used      1951-09-04      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46672      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 01:04:23   Additional Information  Earth MOID = 1.68119 au   Jupiter MOID = 1.59894 au   T_jup = 3.178  [ 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 12.57   n/a E2021B10   diameter diameter 15.555 km 0.244 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 14.960 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] geometric albedo albedo 0.088   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   2615 Saito (1951 RJ)          Discovered 1951-Sep-04 by Reinmuth, K. 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 1909-Feb-09 20:57 00:03 Jupiter 1.89490104905058 1.89489950360337 1.89490259449887 2.59361984323765 2.41513189028328 2418347.372821214 2.81282949588517 122.557105149572 26.8648529303999 -67.8335722207292 1978029.34264694 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 1919-Dec-10 05:44 00:02 Jupiter 1.66818661039688 1.66818572729253 1.66818749350066 2.09230020533525 1.83363552344123 2422302.739212085 2.38380562554358 77.8463251738007 21.1549316887912 -80.722362697034 1761882.68981483 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 1930-Oct-08 04:21 00:02 Jupiter 1.61580150765466 1.6158011731156 1.61580184219363 1.92789299779768 1.63350771066879 2426257.681517552 2.05886083019872 70.8388976288404 19.1055588206238 -73.7950822474072 3227061.19276715 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 1941-Jul-12 23:54 00:02 Jupiter 1.76946634497546 1.76946560656596 1.76946708338496 2.4658902288803 2.26345717508717 2430188.495562969 1.82089027951135 50.5898042249465 7.55539671376881 -76.9844811679128 2087086.98560376 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 2028-Feb-20 00:13 < 00:01 Jupiter 1.96157792985467 1.96157752265153 1.9615783370577 2.70077081411123 2.53585282829591 2461821.509373156 0.482838610283183 49.304560943052 13.4036331466473 85.5978301272025 3311424.57809586 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 2038-Dec-16 12:01 < 00:01 Jupiter 1.71570173287558 1.7157013771859 1.71570208856516 2.16636763040571 1.92503801504228 2465774.000965072 0.806504331141072 79.5934521745096 16.7710948901337 -83.2630427018383 3103193.19112397 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 2049-Oct-17 06:16 00:01 Jupiter 1.61828508843628 1.61828474856059 1.61828542831188 1.99485201043595 1.71248929596478 2469731.760916044 1.21117751912395 70.2755580003336 17.6736769732683 -77.3812419365475 3082490.85260583 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 2060-Jul-30 22:04 00:02 Jupiter 1.73220672556751 1.7322060257212 1.73220742541372 2.31908163200488 2.09765828889986 2473671.419696754 1.69091446752022 49.391665761869 8.5636063340674 -75.5329297355203 2047386.00344102 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 2071-Apr-25 18:30 00:02 Jupiter 1.96686591044358 1.96686503110455 1.96686678978317 3.59708124649294 3.47529882485294 2477592.270859569 2.02313578421561 75.9903797775713 15.4600843961453 -67.2625797720152 2795757.50669256 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 2157-Dec-18 08:53 00:04 Jupiter 1.76777816957473 1.76777675496686 1.76777958418752 2.20929339354194 1.98057738944381 2509239.870335488 4.00861320260058 194.735723129905 20.0610022919217 -76.4735949504491 2116841.28401465 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 2168-Oct-19 11:54 00:04 Jupiter 1.63345525995108 1.63345493596151 1.63345558394057 2.0432377200638 1.77136313924446 2513197.996083906 4.36771873523581 76.2990889250291 22.2989799915782 -80.971713583038 3212155.37493212 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 2179-Aug-11 11:37 00:05 Jupiter 1.70413985018371 1.70413835211256 1.70414134825525 2.26184425898944 2.03023721644888 2517145.983803563 5.06129501086699 106.907418523386 9.81746236533626 -76.1575591158347 1752414.00949139 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 2190-May-09 23:58 00:06 Jupiter 1.92093602627783 1.92093377425121 1.92093827830752 3.27591615246007 3.13842977433206 2521070.498637831 5.58414988942359 172.22412553049 15.031582636704 -64.3550888816654 2252958.33602762 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:29 2021-Feb-24 01:04 Alternate Designations  1951 RJ = 1955 FC2 = 1967 JS = 1979 OD13 = 1979 QB8  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-01 20:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin