+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   21057 Garikisraelian (1991 GJ8) Classification: Main-belt Asteroid          SPK-ID: 2021057 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03632133995897921 5.6081e-08   a 2.287281213345609 8.3678e-09 au q 2.204204094813897 1.3127e-07 au i 7.901243517482006 5.22e-06 deg node 17.7523278420586 2.5171e-05 deg peri 156.4364687781017 6.0511e-05 deg M 237.4799788960424 5.5888e-05 deg tp 2459630.513740804124 (2022-Feb-20.01374080) 0.00019669 TDB period 1263.507345939268 3.46 6.9337e-06 1.898e-08 d yr n .2849211768787799 1.5635e-09 deg/d Q 2.370358331877322 8.6718e-09 au   Orbit Determination Parameters    # obs. used (total)      1128      data-arc span      10879 days (29.79 yr)      first obs. used      1991-04-08      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52194      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:50:41   Additional Information  Earth MOID = 1.20767 au   Jupiter MOID = 2.58661 au   T_jup = 3.587  [ 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 15.44   n/a E2021B10   21057 Garikisraelian           Discovered 1991 Apr. 8 by E. W. Elst at the European Southern Observatory. Garik Israelian (b. 1963) is an astrophysicist at the Institute of Astrophysics, Tenerife, known for his studies of stellar abundances and observational evidence of the supernova origin of black holes. He is an accomplished musician and the founder of the STARMUS Festival, which celebrates astronomy, space exploration and music. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2016-06-20 Last Updated: 2016-06-21 [ show close-approach data ] Alternate Designations  1991 GJ8 = 1992 SK22  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-10 18:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin