+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   9996 ANS (9070 P-L) Classification: Main-belt Asteroid          SPK-ID: 2009996 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2351736674815694 3.3134e-08   a 2.796605457827499 1.1023e-08 au q 2.138917495811232 9.5629e-08 au i 7.65771559916628 3.4958e-06 deg node 209.3156742896743 2.6631e-05 deg peri 166.0902304377977 2.7646e-05 deg M 263.5867595932988 9.0845e-06 deg tp 2459457.987684037979 (2021-Aug-31.48768404) 4.4809e-05 TDB period 1708.225608421987 4.68 1.01e-05 2.765e-08 d yr n .2107449965772134 1.246e-09 deg/d Q 3.454293419843765 1.3616e-08 au   Orbit Determination Parameters    # obs. used (total)      1800      data-arc span      21884 days (59.92 yr)      first obs. used      1960-10-17      last obs. used      2020-09-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4814      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:09:26   Additional Information  Earth MOID = 1.14139 au   Jupiter MOID = 2.01885 au   T_jup = 3.273  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.6   n/a MPO337342   diameter diameter 8.978 km 0.376 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.113   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   9996 ANS           Discovered 1960 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. The Astronomical Netherlands Satellite (ANS) was launched on 1974 Aug. 30 as the first Dutch satellite. Designed as an astronomical observatory, for 20 months it observed celestial objects at ultraviolet and x-ray wavelengths. ANS discovered the x-ray bursts and detected x-rays from Capella. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20001111/MPCPages.arc Last Updated: 2013-03-29 Alternate Designations  9070 P-L = 1974 SH2 = 1996 GP17  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-23 02:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin