+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   535 Montague (A904 JE) Classification: Main-belt Asteroid          SPK-ID: 2000535 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 65 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02479278409827976 3.1379e-08   a 2.569589788352 6.9492e-09 au q 2.505882503508245 8.1285e-08 au i 6.773538831005415 4.0448e-06 deg node 84.78045349599388 2.8326e-05 deg peri 68.31727149718883 8.6211e-05 deg M 184.1956648105007 8.1554e-05 deg tp 2459935.218884826222 (2022-Dec-21.71888483) 0.00034117 TDB period 1504.506690647514 4.12 6.1032e-06 1.671e-08 d yr n .2392810894347449 9.7067e-10 deg/d Q 2.633297073195756 7.1215e-09 au   Orbit Determination Parameters    # obs. used (total)      3463      data-arc span      42612 days (116.67 yr)      first obs. used      1904-05-07      last obs. used      2021-01-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40437      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:47:28   Additional Information  Earth MOID = 1.5258 au   Jupiter MOID = 2.35665 au   T_jup = 3.420  [ 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 9.41   n/a E2021B10   diameter diameter 79.299 km 0.978 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 10.2482 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Koff, R.A.; Brincat, S.M. (2001) Minor Planet Bull. 28, 23.] [Warner, B.D. (2006) Minor Planet Bull. 33, 82-84.] [Buchheim, R.K. (2011) Minor Planet Bull. 38, 128-130.] geometric albedo albedo 0.054   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   B-V BV 0.752   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=.46, mean=.66, max.=.85) deg. U-B UB 0.419   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=.46 deg. Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices 535 Montague (A904 JE)          Discovered 1904-May-07 by Dugan, R. S. at Heidelberg May 9, given by some authorities, is erroneous. Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  A904 JE = 1953 FV1 = 1959 VL = A903 BD  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-07 22:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin