+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11960 (1994 HA) Classification: Main-belt Asteroid          SPK-ID: 2011960 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1434117415454081 4.1023e-08   a 2.588122914925538 9.3725e-09 au q 2.216955700362489 1.0655e-07 au i 14.33279921951262 4.9569e-06 deg node 200.938090090354 1.5643e-05 deg peri 71.69844056500412 2.3789e-05 deg M 54.25749799913 1.5836e-05 deg tp 2458771.290277103483 (2019-Oct-14.79027710) 6.691e-05 TDB period 1520.812851415837 4.16 8.2611e-06 2.262e-08 d yr n .2367155167480663 1.2858e-09 deg/d Q 2.959290129488588 1.0717e-08 au   Orbit Determination Parameters    # obs. used (total)      1704      data-arc span      11082 days (30.34 yr)      first obs. used      1990-05-20      last obs. used      2020-09-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4854      source      ORB      producer      Otto Matic      solution date      2020-Oct-22 16:27:41   Additional Information  Earth MOID = 1.24978 au   Jupiter MOID = 2.19876 au   T_jup = 3.363  [ 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 13.6   n/a MPO296234   diameter diameter 4.250 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.355   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11960 (1994 HA)          Discovered 1994-Apr-17 by Kobayashi, T. at Oizumi Reference: 19991026/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1994 HA = 1990 KD3 = 1990 ML1 = 1991 TP14  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-29 05:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin