+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100177 (1994 AH5) Classification: Main-belt Asteroid          SPK-ID: 2100177 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08298801860296089 4.6948e-08   a 2.976458454013545 2.5221e-08 au q 2.729448064460928 1.4599e-07 au i 2.748624988251014 6.7033e-06 deg node 302.4380499176434 0.00012157 deg peri 301.5703305431812 0.00013616 deg M 290.678711643435 6.556e-05 deg tp 2459361.670515592661 (2021-May-27.17051559) 0.00034341 TDB period 1875.634292088923 5.14 2.3839e-05 6.527e-08 d yr n .1919350704550525 2.4395e-09 deg/d Q 3.22346884356616 2.7314e-08 au   Orbit Determination Parameters    # obs. used (total)      409      data-arc span      9599 days (26.28 yr)      first obs. used      1994-01-05      last obs. used      2020-04-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60584      source      ORB      producer      Otto Matic      solution date      2020-May-20 17:50:26   Additional Information  Earth MOID = 1.7175 au   Jupiter MOID = 1.80098 au   T_jup = 3.254  [ 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 15.4   n/a MPO337984   diameter diameter 4.701 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.061   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   100177 (1994 AH5)          Discovered 1994-Jan-05 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1994 AH5 = 2000 FQ65  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-17 11:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin