+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1432781308436556 3.4653e-08   a 2.587851880623159 8.4244e-09 au q 2.217069300267234 8.7822e-08 au i 14.33325976130786 4.6685e-06 deg node 200.9372060602106 1.1691e-05 deg peri 71.67038183291895 2.1275e-05 deg M 101.6483643583993 1.5816e-05 deg tp 2458771.155954920391 (2019-Oct-14.65595492) 6.6815e-05 TDB period 1520.573963036795 4.16 7.425e-06 2.033e-08 d yr n .2367527057224041 1.1561e-09 deg/d Q 2.958634460979084 9.6314e-09 au   Orbit Determination Parameters    # obs. used (total)      2117      data-arc span      11199 days (30.66 yr)      first obs. used      1990-05-20      last obs. used      2021-01-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45112      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:03:18   Additional Information  Earth MOID = 1.24829 au   Jupiter MOID = 2.19802 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 ] 2021-Feb-28 17:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin