+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1563 Noel (1943 EG) Classification: Main-belt Asteroid          SPK-ID: 2001563 [ 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 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0858472403249767 3.2661e-08   a 2.191564883274884 5.7026e-09 au q 2.003425086052605 7.1449e-08 au i 5.982000588793921 4.8975e-06 deg node 53.64527312697155 3.0904e-05 deg peri 115.9881450984987 4.2857e-05 deg M 291.7905114855938 3.1614e-05 deg tp 2459225.028884276067 (2021-Jan-10.52888428) 0.00010438 TDB period 1185.031585778747 3.24 4.6253e-06 1.266e-08 d yr n .303789370950332 1.1857e-09 deg/d Q 2.379704680497162 6.1922e-09 au   Orbit Determination Parameters    # obs. used (total)      2345      data-arc span      32842 days (89.92 yr)      first obs. used      1930-03-07      last obs. used      2020-02-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41312      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 15:58:37   Additional Information  Earth MOID = 1.01663 au   Jupiter MOID = 2.59181 au   T_jup = 3.660  [ 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 12.4   n/a MPO279529   diameter diameter 7.234 km 0.514 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 3.5495 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2008) http://www.asu.cas.cz/~ppravec/neo.htm] [Oey, J. (2009) Minor Planet Bull. 36, 4-6.] [Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm] [Pravec, P.; Wolf, M.; Sarounova, L. (2013) http://www.asu.cas.cz/~ppravec/neo.htm] [Pravec, P.; Wolf, M.; Sarounova, L. (2015) http://www.asu.cas.cz/~ppravec/neo.htm] [Apostolovska, G.; Kostov, A.; Donchev, Z.; Ovcharov, E. (2017) Minor Planet Bull. 44, 143.] [Oey, J.; Williams, H.; Groom, R.; Pray, D.; Benishek, V. (2017) Minor Planet Bull. 44, 193-199.] geometric albedo albedo 0.370   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   SMASSII spectral type spec_B Sa   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 1563 Noel (1943 EG)          Discovered 1943-Mar-07 by Arend, S. at Uccle Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1943 EG = 1930 EF  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-13 06:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin