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  • MPEC 2015-H28 : 2015 HA1

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    M.P.E.C. 2015-H28                                Issued 2015 Apr. 19, 14:17 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
       on behalf of Commission 20 of the International Astronomical Union by the
              Minor Planet Center, Smithsonian Astrophysical Observatory,
                              Cambridge, MA 02138, U.S.A.
    
                 Prepared using the Tamkin Foundation Computer Network
    
                                  MPC@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                       2015 HA1
    
    Observations:
         K15H01A* C2015 04 16.46188 17 02 26.74 +26 12 11.0          20.0 VqEH028G96
         K15H01A  C2015 04 16.46716 17 02 26.30 +26 12 10.3          20.0 VqEH028G96
         K15H01A  C2015 04 16.47246 17 02 25.88 +26 12 09.9          20.0 VqEH028G96
         K15H01A  C2015 04 16.47774 17 02 25.44 +26 12 09.0          19.9 VqEH028G96
         K15H01A KC2015 04 16.77960 17 02 05.65 +26 11 31.0          19.8 RqEH028O75
         K15H01A KC2015 04 16.78872 17 02 04.91 +26 11 30.0          20.0 RqEH028O75
         K15H01A KC2015 04 16.80666 17 02 03.44 +26 11 29.8          19.6 RqEH028O75
         K15H01A  C2015 04 17.32002 17 01 27.37 +26 10 39.8          19.9 VqEH028I52
         K15H01A  C2015 04 17.32143 17 01 27.26 +26 10 39.9          19.9 VqEH028I52
         K15H01A  C2015 04 17.32284 17 01 27.13 +26 10 39.5          20.0 VqEH028I52
         K15H01A  C2015 04 17.32424 17 01 27.03 +26 10 39.4          19.9 VqEH028I52
         K15H01A  C2015 04 17.40322 17 01 20.07 +26 10 34.5          20.1 RoEH028926
         K15H01A  C2015 04 17.41728 17 01 18.72 +26 10 32.6          20.0 RoEH028926
         K15H01A KC2015 04 17.42456317 01 17.93 +26 10 31.5          19.8 RqEH028448
         K15H01A  C2015 04 17.43139 17 01 17.46 +26 10 31.3          20.0 RoEH028926
         K15H01A KC2015 04 17.45350717 01 15.32 +26 10 27.6          19.5 RqEH028448
         K15H01A KC2015 04 17.47865817 01 13.01 +26 10 23.9          19.9 RqEH028448
         K15H01A  C2015 04 18.12138 17 00 23.17 +26 08 50.9          19.8 RtEH028493
         K15H01A  C2015 04 18.17227 17 00 18.26 +26 08 42.8          19.6 RtEH028493
         K15H01A  C2015 04 18.18385 17 00 17.15 +26 08 40.8          19.5 RtEH028493
         K15H01A  C2015 04 18.19080 17 00 16.47 +26 08 39.4          19.9 RtEH028493
         K15H01A  C2015 04 18.29311 17 00 10.81 +26 08 21.6          19.5 RoEH028926
         K15H01A  C2015 04 18.31333 17 00 08.77 +26 08 19.3          20.2 RoEH028926
         K15H01A KC2015 04 18.32347317 00 06.90 +26 08 16.2          20.0 VuEH028H21
         K15H01A KC2015 04 18.32748217 00 06.54 +26 08 15.6          20.0 VuEH028H21
         K15H01A KC2015 04 18.33127617 00 06.16 +26 08 15.1          20.0 VuEH028H21
         K15H01A  C2015 04 18.33237 17 00 06.96 +26 08 17.4          20.0 RoEH028926
         K15H01A  C2015 04 18.34420 17 00 05.85 +26 08 15.6          20.0 VqEH028I52
         K15H01A  C2015 04 18.34592 17 00 05.67 +26 08 15.0          20.0 VqEH028I52
         K15H01A  C2015 04 18.34763 17 00 05.52 +26 08 15.0          20.0 VqEH028I52
         K15H01A  C2015 04 18.34933 17 00 05.34 +26 08 14.7          20.0 VqEH028I52
         K15H01A  C2015 04 18.39372 17 00 01.00 +26 08 09.9          20.2 RoEH028926
         K15H01A  C2015 04 18.39927 17 00 00.44 +26 08 09.2          19.8 RoEH028926
         K15H01A  C2015 04 18.40780 16 59 59.58 +26 08 08.1          20.0 RoEH028926
         K15H01A  C2015 04 18.41337 16 59 59.06 +26 08 07.4          19.9 RoEH028926
         K15H01A  C2015 04 18.42188 16 59 58.17 +26 08 06.1          20.3 RoEH028926
         K15H01A  C2015 04 18.42744 16 59 57.65 +26 08 05.0          19.9 RoEH028926
         K15H01A  C2015 04 19.04455 16 59 04.10 +26 05 56.3          19.9 V EH028033
         K15H01A  C2015 04 19.04684 16 59 03.88 +26 05 56.0          19.9 V EH028033
         K15H01A  C2015 04 19.04914 16 59 03.65 +26 05 55.6          20.0 V EH028033
         K15H01A  C2015 04 19.07986 16 59 00.51 +26 05 49.7          20.1 V EH028033
         K15H01A  C2015 04 19.08215 16 59 00.28 +26 05 49.4          20.1 V EH028033
         K15H01A  C2015 04 19.08446 16 59 00.04 +26 05 48.8          19.8 V EH028033
         K15H01A  C2015 04 19.08675 16 58 59.82 +26 05 48.4          19.8 V EH028033
         K15H01A  C2015 04 19.08905 16 58 59.57 +26 05 47.9          19.9 V EH028033
         K15H01A  C2015 04 19.09134 16 58 59.34 +26 05 47.5          19.9 V EH028033
         K15H01A  C2015 04 19.35475 16 58 36.32 +26 05 02.0          20.0 VqEH028I52
         K15H01A  C2015 04 19.35710 16 58 36.05 +26 05 01.2          19.7 VqEH028I52
         K15H01A  C2015 04 19.35945 16 58 35.80 +26 05 00.7          19.6 VqEH028I52
         K15H01A  C2015 04 19.36180 16 58 35.55 +26 05 00.7          19.4 VqEH028I52
         K15H01A  C2015 04 19.39366 16 58 32.14 +26 04 56.5          20.2 RoEH028926
         K15H01A  C2015 04 19.40756 16 58 30.66 +26 04 52.6          19.9 RoEH028926
         K15H01A  C2015 04 19.42145 16 58 29.08 +26 04 49.8          20.2 RoEH028926
         K15H01A KC2015 04 19.47954 16 58 22.72 +26 04 36.4          19.5 RoEH028291
         K15H01A KC2015 04 19.48220 16 58 22.44 +26 04 35.7          19.6 RoEH028291
         K15H01A KC2015 04 19.48485 16 58 22.15 +26 04 34.9          19.6 RoEH028291
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers B. Stecklum,
        F. Ludwig.  Measurer B. Stecklum.  1.34-m f/4 Schmidt + CCD.
    291 LPL/Spacewatch II.  Observer T. H. Bressi.  1.8-m f/2.7 reflector + CCD.
    448 Desert Moon Observatory.  Observer B. L. Stevens.  0.3-m
        Schmidt-Cassegrain + CCD.
    493 Calar Alto.  Observers S. Hellmich, S. Mottola.  1.23-m f/8 reflector
        + CCD.
    926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
        M. Schwartz.  0.41-m f/3.75 astrograph + CCD, 0.81-m f/7 Ritchey-Chretien
        + CCD.
    G96 Mt. Lemmon Survey.  Observers J. A. Johnson, D. C. Fuls.  Measurers
        E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, R. E. Hill,
        J. A. Johnson, R. A. Kowalski, S. M. Larson, R. G. Matheny, F. C. Shelly.
        1.5-m reflector + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observers T. Linder,
        R. Holmes.  Measurers T. Linder, R. Holmes, L. Buzzi, S. Foglia,
        T. Vorobjov.  0.76-m f/3.0 astrograph + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers A. R. Gibbs,
        R. A. Kowalski.  Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs,
        A. D. Grauer, R. E. Hill, J. A. Johnson, R. A. Kowalski, S. M. Larson,
        R. G. Matheny, F. C. Shelly.  1.0-m reflector + CCD.
    O75 ISON-Hureltogoot Observatory.  Observers T. Namkhai, S. Schmalz.  Measurer
        S. Schmalz.  0.4-m f/2.3 reflector + CCD.
    
    Orbital elements:
    2015 HA1                                                 Earth MOID = 0.0550 AU
    Epoch 2015 June 27.0 TT = JDT 2457200.5                 MPC
    M 279.30465              (2000.0)            P               Q
    n   1.04117977     Peri.  315.29705     +0.94074514     -0.18422841
    a   0.9640929      Node    57.38066     +0.31641712     +0.77885423
    e   0.1877389      Incl.   19.75653     -0.12197862     +0.59953815
    P   0.95           H   21.2           G   0.15           U   8
    Residuals in seconds of arc
    150416 G96  0.1+  0.4+    150418 493  0.2+  0.0     150419 033  0.0   0.1+
    150416 G96  0.0   0.2+    150418 493  0.1+  0.1-    150419 033  0.1+  0.1+
    150416 G96  0.3+  0.3+    150418 926  1.6+  0.4+    150419 033  0.1-  0.0
    150416 G96  0.3+  0.1-    150418 926  0.4-  0.1-    150419 033  0.0   0.2+
    150416 O75  0.3-  0.4-    150418 H21  0.2-  0.0     150419 033  0.0   0.0
    150416 O75  0.2-  0.8-    150418 H21  0.2+  0.0     150419 033  0.2+  0.1+
    150416 O75  0.2-  0.4+    150418 H21  0.0   0.0     150419 033  0.0   0.0
    150417 I52  0.1-  0.1+    150418 926  0.5-  0.1-    150419 033  0.0   0.1+
    150417 I52  0.1+  0.2+    150418 I52  0.2+  0.0     150419 I52  0.0   0.0
    150417 I52  0.1-  0.1-    150418 I52  0.0   0.4-    150419 I52  0.3-  0.4-
    150417 I52  0.2+  0.1-    150418 I52  0.2+  0.2-    150419 I52  0.3-  0.5-
    150417 926  0.3+  0.3+    150418 I52  0.0   0.3-    150419 I52  0.2-  0.1-
    150417 926  0.8-  0.1-    150418 926  0.0   0.1-    150419 926  0.1+  0.9+
    150417 448  0.1-  0.0     150418 926  0.2-  0.0     150419 926  0.6+  0.2-
    150417 926  0.4-  0.1+    150418 926  0.3-  0.1+    150419 926  0.2-  0.2-
    150417 448  0.3+  0.2-    150418 926  0.2+  0.3+    150419 291  0.1-  0.1+
    150417 448  0.1+  0.3-    150418 926  0.3-  0.3+    150419 291  0.1+  0.1+
    150418 493  0.1-  0.0     150418 926  0.2+  0.1+    150419 291  0.1+  0.1-
    150418 493  0.1+  0.1-    150419 033  0.1-  0.0
    
    Ephemeris:
    2015 HA1                 a,e,i = 0.96, 0.19, 20                  q = 0.7831
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2015 03 20    17 00 42.7 +24 55 36   0.3869  1.1445   102.7    58.1    21.5
    ...
    2015 04 04    17 08 14.0 +25 54 59   0.3060  1.1422   110.2    55.3    20.9
    ...
    2015 04 12    17 06 16.4 +26 12 45   0.2600  1.1370   115.1    53.0    20.5
    ...
    2015 04 18    17 00 32.8 +26 09 17   0.2250  1.1314   119.4    50.7    20.1
    2015 04 19    16 59 07.5 +26 06 23   0.2192  1.1303   120.2    50.2    20.0
    2015 04 20    16 57 33.0 +26 02 36   0.2133  1.1292   121.0    49.7    20.0
    ...
    2015 04 26    16 44 16.0 +25 15 07   0.1787  1.1216   126.5    46.1    19.5
    ...
    2015 05 04    16 12 13.7 +22 14 32   0.1349  1.1092   136.1    39.1    18.6
    ...
    2015 05 19    13 51 10.9 -00 46 05   0.07968 1.0794   147.2    30.5    17.2
    
    A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-H28
    

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