+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2325 Chernykh (1979 SP) Classification: Main-belt Asteroid          SPK-ID: 2002325 [ 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 .1764309045368622 3.4588e-08   a 3.14015729915137 1.5094e-08 au q 2.586136506474063 1.1e-07 au i 1.920137162210238 4.3923e-06 deg node 139.9335924145261 0.00011378 deg peri 267.1926030142781 0.00011448 deg M 99.1885955476787 1.2271e-05 deg tp 2458640.504196506140 (2019-Jun-06.00419651) 6.8251e-05 TDB period 2032.476497369941 5.56 1.4655e-05 4.012e-08 d yr n .1771238193729896 1.2771e-09 deg/d Q 3.694178091828676 1.7757e-08 au   Orbit Determination Parameters    # obs. used (total)      2584      data-arc span      23985 days (65.67 yr)      first obs. used      1955-05-22      last obs. used      2021-01-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45229      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 01:02:04   Additional Information  Earth MOID = 1.59596 au   Jupiter MOID = 1.70091 au   T_jup = 3.185  [ 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 12.01   n/a E2021B10   diameter diameter 22.789 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.065   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   2325 Chernykh           Discovered 1979 Sept. 25 by A. Mrkos at the Klet Observatory. Named in honor of Ludmila I. Chernykh and Nikolaj S. Chernykh, astronomers at the Crimean Astrophysical Observatory who lead the impressive program of observations and discoveries of minor planets there. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC 6060 Last Updated: 2006-03-21 [ 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-Oct-26 01:37 00:02 Jupiter 1.96519001450632 1.96518907959611 1.9651909494181 2.52718009744642 2.35044956796901 2418605.567039517 2.38610565301938 122.139771545795 8.91372657845965 82.7575508422162 2688545.49752535 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:11 2021-Feb-24 01:02 1973-Feb-15 03:54 00:01 Jupiter 1.92852608461256 1.9285254968708 1.92852667235421 3.00904654608297 2.85936124744598 2441728.662278452 1.08203611655613 45.9994440694412 16.4696255123948 82.2118652635956 2336914.12184031 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:11 2021-Feb-24 01:02 1983-Jul-23 17:06 < 00:01 Jupiter 1.75226828700621 1.75226793794002 1.7522686360723 1.85820439636704 1.57675329148714 2445539.212556658 0.819176881975851 57.0223135663967 18.6762616598396 -87.5521070943607 2808243.90153452 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:11 2021-Feb-24 01:02 1994-Jan-05 23:42 < 00:01 Jupiter 1.7990726605299 1.79907226626456 1.79907305479503 1.86792500843796 1.59609604847181 2449358.487679535 0.535978093295606 56.9836465557463 16.9231381612231 -81.0236662236908 2713694.68109548 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:11 2021-Feb-24 01:02 2067-Oct-14 19:12 00:01 Jupiter 1.86086778260526 1.8608673068873 1.86086825832312 2.61178412673988 2.43126801290695 2476303.299839328 1.14929168909893 46.7993836577537 8.99468954977925 -89.3864043664088 2404426.672883 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:11 2021-Feb-24 01:02 2078-Mar-22 12:00 00:01 Jupiter 1.73001055011484 1.73001023478141 1.73001086544816 1.73890149690261 1.42988377366861 2480115.000015485 1.40316818122416 66.3792769565861 30.4170820297502 89.7234152028688 2911612.96083905 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:11 2021-Feb-24 01:02 2088-Sep-05 14:39 00:02 Jupiter 1.84587713577435 1.84587647536323 1.84587779618589 2.03185307582379 1.79183750385378 2483935.110595387 1.67063236774257 93.246708621911 8.78271865422286 -88.6722503637577 2618550.54708724 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:11 2021-Feb-24 01:02 2162-Jun-13 03:07 00:03 Jupiter 1.80358404674529 1.8035831955045 1.80358489798546 2.28252260485459 2.06655353673702 2510877.630002981 3.3657095876695 65.0145583368901 8.02406128397861 -81.9473803740727 1355218.40999558 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:11 2021-Feb-24 01:02 2172-Nov-19 14:06 00:04 Jupiter 1.73063023903365 1.73062977196837 1.73063070609942 1.70275747696627 1.38582929788119 2514690.087465999 3.5709605481046 113.047668738756 33.5212019809979 88.209172236507 2830481.90067196 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:11 2021-Feb-24 01:02 2183-May-06 00:48 00:04 Jupiter 1.91034715452396 1.9103457524776 1.91034855657532 2.27544717301016 2.07144549585043 2518509.533564697 3.81436639299537 193.877877917563 5.94969601155322 85.3771060297878 2612570.07830586 T 40 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:11 2021-Feb-24 01:02 Alternate Designations  1979 SP = 1957 UJ = 1959 CH = 1971 FR = 1974 WD1 = 1974 XN = 1979 UG3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-28 10:47 UT (server date/time)   Site Manager:   Ryan S. 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