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  • MPEC 2015-H33 : 2015 HE1

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    M.P.E.C. 2015-H33                                Issued 2015 Apr. 19, 20:55 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 HE1
    
    Observations:
         K15H01E* C2015 04 18.30662 12 04 30.171-13 58 10.33         19.3 wLEH033F51
         K15H01E  C2015 04 18.32785 12 03 54.743-13 56 37.82         19.4 wLEH033F51
         K15H01E  C2015 04 18.33850 12 03 36.805-13 55 50.08         19.3 wLEH033F51
         K15H01E  C2015 04 19.12387 11 37 11.81 -12 32 21.6          19.9 RoEH033926
         K15H01E  C2015 04 19.12655 11 37 04.37 -12 31 57.1          19.6 RoEH033926
         K15H01E  C2015 04 19.12921 11 36 56.87 -12 31 34.6          19.6 RoEH033926
         K15H01E KC2015 04 19.23399 11 31 49.55 -12 15 19.0          21.1 RoEH033291
         K15H01E KC2015 04 19.23467 11 31 47.44 -12 15 12.2          21.2 RoEH033291
         K15H01E KC2015 04 19.23543 11 31 45.13 -12 15 04.5                oEH033291
         K15H01E tC2015 04 19.25716 11 30 37.66 -12 11 20.1          19.3 RoEH033926
         K15H01E tC2015 04 19.26252 11 30 20.93 -12 10 24.3          19.3 RoEH033926
         K15H01E BC2015 04 19.84369410 53 54.74 -09 55 23.8          19.0 RqEH033J95
         K15H01E KC2015 04 19.85001310 53 23.09 -09 53 23.7          18.9 RqEH033J95
         K15H01E KC2015 04 19.85382710 53 03.89 -09 52 09.6          18.8 RqEH033J95
         K15H01E KC2015 04 19.85965610 52 34.44 -09 50 16.5          18.9 RqEH033J95
    
    Observer details:
    291 LPL/Spacewatch II.  Observer T. H. Bressi.  1.8-m f/2.7 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.
    F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, N. Primak,
        A. Schultz, M. Willman.  Measurer P. Veres.  1.8-m Ritchey-Chretien + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
        + CCD.
    
    Orbital elements:
    2015 HE1                                                 Earth MOID = 0.0024 AU
    Epoch 2015 June 27.0 TT = JDT 2457200.5                 MPC
    M   8.14762              (2000.0)            P               Q
    n   0.57953460     Peri.   79.22751     +0.36480669     +0.93052332
    a   1.4247865      Node   212.22732     -0.87616608     +0.33135011
    e   0.4932394      Incl.    3.47103     -0.31503822     +0.15599187
    P   1.70           H   26.4           G   0.15           U   6
    Residuals in seconds of arc
    150418 F51  0.2-  0.1+    150419 926  0.3-  0.1+    150419 926  0.2+  0.1+
    150418 F51  0.3-  0.0     150419 291  0.4-  0.2+    150419 J95  0.5-  0.8+
    150418 F51  0.3+  0.2+    150419 291  0.8-  0.1+    150419 J95  0.3-  0.2-
    150419 926  0.0   0.6-    150419 291  0.5-  0.2+    150419 J95  0.2-  0.2+
    150419 926  0.6+  0.7+    150419 926  0.3+  0.1-    150419 J95  0.3+  0.1+
    
    Ephemeris:
    2015 HE1                 a,e,i = 1.42, 0.49, 3                   q = 0.7220
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2015 03 20    13 14 58.8 -15 36 26   0.2894  1.2633   154.7    19.7    25.2
    ...
    2015 04 04    13 10 55.4 -16 16 49   0.1468  1.1439   168.0    10.5    23.2
    ...
    2015 04 12    12 58 41.4 -16 06 54   0.07744 1.0787   170.7     8.6    21.6
    ...
    2015 04 18    12 11 30.7 -14 15 46   0.02787 1.0298   157.6    21.8    19.7
    2015 04 19    11 42 12.0 -12 45 01   0.02010 1.0216   149.8    29.7    19.3
    2015 04 20    10 40 21.5 -08 51 04   0.01305 1.0135   133.5    46.0    18.8
    ...
    2015 04 26    02 13 45.9 +17 51 16   0.04094 0.9653     4.6   175.2
    ...
    2015 05 04    01 43 10.8 +17 17 25   0.1086  0.9033    14.2   164.1    34.0
    ...
    2015 05 19    01 41 09.5 +17 07 30   0.2492  0.8015    28.5   143.0    30.2
    
    A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-H33
    

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