+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19042 (6104 P-L) Classification: Main-belt Asteroid          SPK-ID: 2019042 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08787944356315043 4.1868e-08   a 3.17030995571828 1.9331e-08 au q 2.891704880887041 1.3344e-07 au i 3.648863990837059 4.807e-06 deg node 199.2317348742544 6.1936e-05 deg peri 199.6961439235004 6.6275e-05 deg M 196.693880455955 2.4228e-05 deg tp 2460135.800081441981 (2023-Jul-10.30008144) 0.00014218 TDB period 2061.821260949749 5.64 1.8858e-05 5.163e-08 d yr n .1746029138501419 1.597e-09 deg/d Q 3.448915030549519 2.103e-08 au   Orbit Determination Parameters    # obs. used (total)      1022      data-arc span      21841 days (59.80 yr)      first obs. used      1960-09-24      last obs. used      2020-07-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50709      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:44:51   Additional Information  Earth MOID = 1.89843 au   Jupiter MOID = 1.93504 au   T_jup = 3.193  [ 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 14.26   n/a E2021B10   diameter diameter 8.969 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.046   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   19042 (6104 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar Reference: 20001111/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  6104 P-L = 1977 RY17  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 16:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin