+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   P/2011 UA134 (Spacewatch-PANSTARRS) Classification: Jupiter-family Comet          SPK-ID: 1003157 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2455886.5 (2011-Nov-21.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6326994688675575 2.5118e-05   a 5.585370266753574 0.00048878 AU q 2.05150946554994 3.9585e-05 AU i 10.53950429956481 0.00037284 deg node 40.63821532930345 0.00064517 deg peri 32.32117860900859 0.0039721 deg M 358.7909700588585 0.00072317 deg tp 2455902.692389251845 (2011-Dec-07.19238925) 0.0082511 JED period 4821.435708333594 13.20 0.6329 0.001733 d yr n .07466655614172336 9.8013e-06 deg/d Q 9.119231067957207 0.00079804 AU   Orbit Determination Parameters    # obs. used (total)      129      data-arc span      95 days      first obs. used      2011-10-24      last obs. used      2012-01-27      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      4      fit RMS      .69215      data source      ORB      producer      Otto Matic      solution date      2012-Apr-03 14:50:44   Additional Information  Earth MOID = 1.07409 AU   T_jup = 2.509  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 15.7 mag 1. 12 from 83 observations, assumed slope, autocmod 2.5b comet total magnitude slope K1 10.   n/a 12 autocmod 2.5b comet nuclear magnitude M2 17.6 mag 0.4 12 from 21 observations, autocmod 2.5b comet nuclear magnitude slope K2 5.   n/a 12 autocmod 2.5b comet nuclear phase coefficient PC 0.03   n/a 12 autocmod 2.5b [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2011.9   P/2011 UA134        [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] 2013-May-23 10:12 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin