+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   16622 (1993 GG1) Classification: Main-belt Asteroid          SPK-ID: 2016622 [ 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 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08715299142544236 9.899e-09   a 3.14183840093086 1.5705e-08 au q 2.868017785714407 2.9227e-08 au i 6.315035700227759 5.0036e-07 deg node 68.85762456693104 6.9724e-06 deg peri 155.9036205150389 1.6516e-05 deg M 335.4127946751042 1.2966e-05 deg tp 2459339.425145206240 (2021-May-04.92514521) 7.3382e-05 TDB period 2034.108863263346 5.57 1.5251e-05 4.175e-08 d yr n .1769816780712747 1.327e-09 deg/d Q 3.415659016147313 1.7073e-08 au   Orbit Determination Parameters    # obs. used (total)      2155      data-arc span      13791 days (37.76 yr)      first obs. used      1983-06-12      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49732      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:37:00   Additional Information  Earth MOID = 1.85863 au   Jupiter MOID = 1.56856 au   T_jup = 3.195  [ 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 13.1   n/a MPO502296   diameter diameter 11.141 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.083   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   16622 (1993 GG1)          Discovered 1993-Apr-15 by Holt, H. E. at Palomar Reference: 20000913/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1993 GG1 = 1998 DM20  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-16 07:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin