+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   324P/La Sagra Classification: Encke-type Comet          SPK-ID: 1003104 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2457262.5 (2015-Aug-28.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .153784445570409 8.194e-07   a 3.095929042189836 5.782e-07 au q 2.619823310911345 2.9645e-06 au i 21.41695747394586 1.5746e-05 deg node 270.6516569004608 0.00011696 deg peri 58.56915804482286 0.00016211 deg M 343.0000762445442 0.00014267 deg tp 2457356.457055272656 (2015-Nov-29.95705527) 0.00081096 TDB period 1989.687741234773 5.45 0.00055739 1.526e-06 d yr n .1809329135116392 5.0687e-08 deg/d Q 3.572034773468327 6.6711e-07 au   Orbit Determination Parameters    # obs. used (total)      421      data-arc span      1800 days (4.93 yr)      first obs. used      2010-08-12      last obs. used      2015-07-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-BIG16      condition code      1      norm. resid. RMS      .61742      source      ORB      producer      Ryan S. Park      solution date      2015-Aug-18 22:06:31   Additional Information  Earth MOID = 1.66858 au   T_jup = 3.100  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 7.0   0.9 22 from 121 observations, assumed slope, autocmod 2.6 comet total magnitude slope K1 25.   n/a 22 autocmod 2.6 comet nuclear magnitude M2 15.5   0.5 22 from 276 observations, autocmod 2.6 comet nuclear magnitude slope K2 5.   n/a 22 autocmod 2.6 comet nuclear phase coefficient PC 0.03   n/a 22 autocmod 2.6 diameter diameter 1.600 km 0.300 urn:nasa:pds:neowise_diameters_albedos::2.0[ambos] (http://adsabs.harvard.edu/abs/2012ApJ...747...49B)   geometric albedo albedo 0.010   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[ambos] (http://adsabs.harvard.edu/abs/2012ApJ...747...49B)   [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2015.9   324P/2015 K3         2010.5   324P/2010 R2        [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-07 08:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin