+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100305 (1995 GN1) Classification: Main-belt Asteroid          SPK-ID: 2100305 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2072506847445577 6.3721e-08   a 2.579150003537335 1.756e-08 au q 2.044619399245294 1.7166e-07 au i 17.11901148818493 6.6912e-06 deg node 25.3495416133491 1.4089e-05 deg peri 337.0437804215131 1.6916e-05 deg M 266.9534598176389 1.171e-05 deg tp 2459591.530881867312 (2022-Jan-12.03088187) 5.1897e-05 TDB period 1512.910820717635 4.14 1.5451e-05 4.23e-08 d yr n .2379518971443653 2.4302e-09 deg/d Q 3.113680607829376 2.12e-08 au   Orbit Determination Parameters    # obs. used (total)      602      data-arc span      10634 days (29.11 yr)      first obs. used      1991-04-13      last obs. used      2020-05-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .62888      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:06:53   Additional Information  Earth MOID = 1.05198 au   Jupiter MOID = 2.36835 au   T_jup = 3.334  [ 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 15.42   n/a E2021B55   diameter diameter 2.032 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.390   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   100305 (1995 GN1)          Discovered 1995-Apr-01 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1995 GN1 = 2001 UK168  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-09 04:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin