+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   7564 Gokumenon (1988 CA) Classification: Main-belt Asteroid          SPK-ID: 2007564 [ 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 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2045998644170732 3.3851e-08   a 2.763991032878809 9.5098e-09 au q 2.198478842301799 9.4768e-08 au i 10.86715405022338 4.2543e-06 deg node 157.0569476977946 1.8543e-05 deg peri 350.4855344116988 2.0779e-05 deg M 40.14945621883024 9.5484e-06 deg tp 2459013.310907718497 (2020-Jun-12.81090772) 4.4175e-05 TDB period 1678.43053350585 4.60 8.6622e-06 2.372e-08 d yr n .2144860885294097 1.1069e-09 deg/d Q 3.32950322345582 1.1455e-08 au   Orbit Determination Parameters    # obs. used (total)      2389      data-arc span      24605 days (67.36 yr)      first obs. used      1953-09-07      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .43474      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 01:38:04   Additional Information  Earth MOID = 1.21047 au   Jupiter MOID = 1.68063 au   T_jup = 3.284  [ hide covariance matrix ] Orbital Elements at Epoch 2456785.5 (2014-May-08.0) TDB Reference: JPL 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2052172370534942 3.396e-08   q 2.19645107462006 9.5114e-08 au tp 2457336.355293539737 (2015-Nov-09.85529354) 4.1695e-05 TDB node 157.0776724815602 1.8539e-05 deg peri 350.8122437316736 2.0741e-05 deg i 10.86879130227936 4.2548e-06 deg   Orbit Determination Parameters    # obs. used (total)      2389      data-arc span      24605 days (67.36 yr)      first obs. used      1953-09-07      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .43474      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 01:38:04   Additional Information  Jupiter MOID = 1.68063 au   T_jup = 3.284  Orbit Covariance (6×6)   e q tp node peri i e 1.153290161813154E-15 -3.220157618817946E-15 4.45502385100224E-13 -4.785051692695387E-16 1.162558704135081E-13 -1.295621279479453E-15 q -3.220157618817946E-15 9.046600934616549E-15 -1.187566515705532E-12 3.61209941659644E-15 -3.199287987958428E-13 4.214132148908269E-15 tp 4.45502385100224E-13 -1.187566515705532E-12 1.738510072983958E-9 1.85228149170371E-12 3.984803697383677E-10 5.820028656469416E-13 node -4.785051692695387E-16 3.61209941659644E-15 1.85228149170371E-12 3.436894662242155E-10 -3.36800842100087E-10 2.230562518081441E-11 peri 1.162558704135081E-13 -3.199287987958428E-13 3.984803697383677E-10 -3.36800842100087E-10 4.301829425777835E-10 -2.180945408320291E-11 i -1.295621279479453E-15 4.214132148908269E-15 5.820028656469416E-13 2.230562518081441E-11 -2.180945408320291E-11 1.81029084854987E-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 12.85   n/a E2021B10   diameter diameter 8.533 km 0.361 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 30.58 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Cooney, W.R.; Robinson, L. (2002) Minor Planet Bull. 29, 78-79.] geometric albedo albedo 0.221   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   SMASSII spectral type spec_B S   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) 7564 Gokumenon           Discovered 1988 Feb. 7 by R. Rajamohan at Kavalur. M. G. K. ("Goku") Menon (b. 1928), Vikram Sarabhai Distinguished professor of the Indian Space Research Organization, is renowned for his experimental cosmic-ray work at the Tata Institute. He provided strong support for building the 2.3-m telescope at Kavalur and the radioastronomy facility at Ootacamund. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20080819/MPCPages.arc Last Updated: 2008-08-25 [ show close-approach data ] Alternate Designations  1988 CA = 1982 YD2 = 1990 RK10  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-25 06:14 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin