Update for (94) Aurora - January 25/26, 2004

  • Update computed by Jan Manek;   issued 17 Jan 2004 22:28 +0100 (CET)

  • Jan Manek's update

                         IOTA/IOTA-ES occultation update for
                (94) Aurora / TYC 1947-00021-1 on January 25/26, 2004
            visible from Russia, E Ukraine, E Belarus, E Lithuania, Latvia,
           W Estonia, middle Sweden, mid-south Norway, greenland and Canada
    
    Summary 

    In the night of January 25/26, 2004 a faint 11.7 mag star TYC 1947-00021-1 will be occulted by a 212 km asteroid (94) Aurora. This update is based on USNO/Flagstaff and TMO astrometry for the asteroid and UCAC2 star position.

    The updated path shows ~0.6 path widths north shift with time 0.2 minutes earlier compared to Edwin Goffin's nominal prediction.

    Updated path runs over Russia from S nto NW ~2:41 to 2:42.8 UT, E Ukraine ~2:41.6 UT, E Belarus ~2:42.3 UT, E Lithuania ~2:42.6 UT, Latvia ~242.7 UT, W Estonia ~2:42.9 UT, middle Sweden ~2:43.5 UT, mid-south Norway ~2:43.9 UT, Greenland ~2:47 UT and Canada around 2:50 UT. Please check the path chart for details.

    Here is current station list for European cities.

    Clear sky and good luck !!!

    The event at one glimpse:
     * date and approx. UT time of event: January 26, 2004 @ 02:42 UT (Europe)
     * magnitude of target star: 11.7
     * magnitude drop [mag]: 0.9
     * estimated maximum duration [s]: 16.5
     * approx. V mag of minor planet at event [mag]: 11.9
     * geocentric parallax of minor planet ["]: 4.292
     * apparent motion of minor planet ["/h]: 31.19
     * angular distance to moon, phase of moon [deg,%]: 123, 21%
     * Goffin's original chart reference: A04_0111
    
    The occultation path with path maps:
     * approximate ground width [km]: 285
     * uncertainty [path widths]: 0.32
     * uncertainty in time [s]: 8
     * map: Overview
            European part
            N.America part
     * remarks: Path uncertainties [1 sigmas] are given according to nominal star
                position errors and expected asteroid positional accuracy.
    
    Elements for WinOccult - use 'Save as ...' to download and save these elements.
    
    Finding charts (prepared in GUIDE8):
     * occulted star is in center - labeled with cross
     * labeled stars have indicated SAO numbers
     * square box shows 30' field in all wider field charts
     * remarks:
       Target star is in north Cancer, about 3.8 degrees east of 4.0 mag star iota Cancri = SAO 80416.
       !!! IMPORTANT !!!
       Purple stars in identification chart are so called 'non-star' objects in GSC; in dense fields
       the 'non-stars' are often real stars or blends of close pairs. Be careful about this.
       20-degree chart
       3-degree chart
       0.5-degree chart
    
    Data for the target star:
     * name: TYC 1947-00021-1
     * constellation: Cancer
     * J2000 position [h,m,s; o,',"]: 08h 29m 49.5022s; +29o 28' 45.069"
     * position source: UCAC2
     * estimated accuracy ["]: 0.03" (0.02", 0.03")
     * V mag [mag]: 11.68
     * B-V [mag]: +0.44
     * remarks:
    
    Data for the minor planet:
     * general information:
         number, name: (94) Aurora
         approx. diameter [km]: 118
     * orbital information
         orbit source: calculation Manek
         source of used astrometry: USNO/Flagstaff (Ron Stone), TMO (Bill Owen)
         number of used observations: 134 USNO, 19 TMO
         number of rejected observations: 0
         time covered by the observations: 1997 10 17 - 2004 01 07
         rms residuals ["] (RA,DE): 0.07", 0.07"
         estimated positional accuracy at epoch of event ["]: 0.07", 0.04"
         remarks:
    
    Calculator(s): Jan Manek
    
    Path coordinates:
                      Centre              Star  Star   Sun      Path Limits           Error Limits
      E. Longitude   Latitude      U.T.    Alt    Az   Alt    Limit 1    Limit 2    Limit 3    Limit 4
        ...................................... shortened .............................................
          o  '  "     o  '  "    h  m  s     o     o     o    o  '  "    o  '  "    o  '  "    o  '  "
                                                             Latitude   Latitude   Latitude   Latitude
         60  0  0    36 37 33    2 40  6    12   298    -6   38 16 50   35  1 26   39 22 14   34  1 24
         59  0  0    37 16 17    2 40  8    13   297    -7   38 56  1   35 39 46   40  1 43   34 39 30
         58  0  0    37 55  6    2 40 11    14   297    -8   39 35 15   36 18 11   40 41 15   35 17 42
         57  0  0    38 33 57    2 40 14    15   296    -9   40 14 31   36 56 40   41 20 50   35 55 57
         56  0  0    39 12 50    2 40 17    16   295   -10   40 53 48   37 35 11   42  0 24   36 34 15
         55  0  0    39 51 42    2 40 20    17   295   -10   41 33  4   38 13 42   42 39 56   37 12 34
         54  0  0    40 30 32    2 40 24    18   294   -11   42 12 17   38 52 12   43 19 26   37 50 52
         53  0  0    41  9 19    2 40 27    19   293   -12   42 51 26   39 30 39   43 58 50   38 29  7
         52  0  0    41 48  1    2 40 31    19   293   -13   43 30 29   40  9  2   44 38  7   39  7 20
         51  0  0    42 26 36    2 40 35    20   292   -14   44  9 24   40 47 19   45 17 17   39 45 27
         50  0  0    43  5  3    2 40 39    21   291   -15   44 48 10   41 25 30   45 56 16   40 23 27
         49  0  0    43 43 20    2 40 43    22   290   -16   45 26 45   42  3 31   46 35  3   41  1 19
         48  0  0    44 21 26    2 40 47    23   289   -16   46  5  7   42 41 22   47 13 38   41 39  2
         47  0  0    44 59 19    2 40 52    24   288   -17   46 43 16   43 19  2   47 51 57   42 16 34
         46  0  0    45 36 59    2 40 56    25   288   -18   47 21  9   43 56 29   48 30  1   42 53 53
         45  0  0    46 14 22    2 41  1    26   287   -19   47 58 46   44 33 42   49  7 47   43 30 59
         44  0  0    46 51 29    2 41  6    26   286   -20   48 36  4   45 10 38   49 45 13   44  7 50
         43  0  0    47 28 18    2 41 10    27   285   -20   49 13  3   45 47 18   50 22 19   44 44 25
         42  0  0    48  4 47    2 41 15    28   284   -21   49 49 41   46 23 40   50 59  3   45 20 43
         41  0  0    48 40 55    2 41 20    29   283   -22   50 25 56   46 59 42   51 35 24   45 56 41
         40  0  0    49 16 42    2 41 25    30   282   -22   51  1 48   47 35 24   52 11 20   46 32 20
         39  0  0    49 52  5    2 41 30    30   281   -23   51 37 16   48 10 44   52 46 50   47  7 38
         38  0  0    50 27  5    2 41 35    31   280   -24   52 12 18   48 45 41   53 21 54   47 42 34
         37  0  0    51  1 39    2 41 40    32   279   -24   52 46 53   49 20 14   53 56 31   48 17  7
         36  0  0    51 35 47    2 41 46    32   278   -25   53 21  1   49 54 23   54 30 38   48 51 16
         35  0  0    52  9 28    2 41 51    33   277   -26   53 54 40   50 28  6   55  4 16   49 25  0
         34  0  0    52 42 41    2 41 56    34   276   -26   54 27 50   51  1 22   55 37 23   49 58 18
         33  0  0    53 15 26    2 42  1    34   275   -27   55  0 29   51 34 11   56 10  0   50 31 10
         32  0  0    53 47 41    2 42  7    35   273   -27   55 32 38   52  6 33   56 42  4   51  3 35
         31  0  0    54 19 27    2 42 12    36   272   -28   56  4 15   52 38 25   57 13 36   51 35 32
         30  0  0    54 50 41    2 42 17    36   271   -28   56 35 21   53  9 49   57 44 34   52  7  1
         29  0  0    55 21 25    2 42 22    37   270   -29   57  5 54   53 40 42   58 15  0   52 38  0
         28  0  0    55 51 37    2 42 28    37   269   -29   57 35 54   54 11  6   58 44 51   53  8 30
         27  0  0    56 21 18    2 42 33    38   268   -30   58  5 20   54 40 58   59 14  8   53 38 30
         26  0  0    56 50 26    2 42 38    38   266   -30   58 34 14   55 10 20   59 42 51   54  8  0
         25  0  0    57 19  1    2 42 43    39   265   -30   59  2 33   55 39 10   60 10 59   54 36 59
         24  0  0    57 47  4    2 42 48    39   264   -31   59 30 18   56  7 29   60 38 32   55  5 27
         23  0  0    58 14 34    2 42 54    40   263   -31   59 57 30   56 35 16   61  5 30   55 33 23
         22  0  0    58 41 32    2 42 59    40   261   -32   60 24  7   57  2 30   61 31 54   56  0 49
         21  0  0    59  7 56    2 43  4    41   260   -32   60 50 10   57 29 13   61 57 42   56 27 43
         20  0  0    59 33 47    2 43  9    41   259   -32   61 15 40   57 55 24   62 22 56   56 54  5
         19  0  0    59 59  5    2 43 14    41   258   -33   61 40 35   58 21  3   62 47 36   57 19 56
         18  0  0    60 23 50    2 43 19    42   256   -33   62  4 56   58 46  9   63 11 40   57 45 15
         17  0  0    60 48  2    2 43 24    42   255   -33   62 28 44   59 10 43   63 35 11   58 10  2
         16  0  0    61 11 42    2 43 29    43   254   -34   62 51 58   59 34 46   63 58  8   58 34 18
         15  0  0    61 34 49    2 43 33    43   252   -34   63 14 40   59 58 17   64 20 31   58 58  3
         14  0  0    61 57 24    2 43 38    43   251   -34   63 36 48   60 21 16   64 42 21   59 21 17
         13  0  0    62 19 28    2 43 43    43   250   -34   63 58 24   60 43 44   65  3 38   59 43 59
         12  0  0    62 40 59    2 43 47    44   248   -35   64 19 28   61  5 41   65 24 22   60  6 11
         11  0  0    63  2  0    2 43 52    44   247   -35   64 40  1   61 27  7   65 44 35   60 27 52
         10  0  0    63 22 29    2 43 57    44   246   -35   65  0  1   61 48  2   66  4 15   60 49  3
          9  0  0    63 42 28    2 44  1    45   244   -35   65 19 31   62  8 27   66 23 25   61  9 43
          8  0  0    64  1 57    2 44  6    45   243   -35   65 38 31   62 28 22   66 42  4   61 29 54
          7  0  0    64 20 56    2 44 10    45   241   -36   65 57  0   62 47 48   67  0 13   61 49 36
          6  0  0    64 39 25    2 44 14    45   240   -36   66 15  0   63  6 45   67 17 52   62  8 49
          5  0  0    64 57 26    2 44 19    45   239   -36   66 32 31   63 25 12   67 35  3   62 27 33
          4  0  0    65 14 58    2 44 23    46   237   -36   66 49 33   63 43 12   67 51 44   62 45 48
          3  0  0    65 32  2    2 44 27    46   236   -36   67  6  8   64  0 43   68  7 57   63  3 36
        ...................................... shortened .............................................
       - 69  0  0    72  1 21    2 48  1    44   143   -34   73 20  4   70 44 14   74 11 22   69 55 41
       - 70  0  0    71 58  2    2 48  3    44   141   -34   73 16 55   70 40 46   74  8 19   69 52  7
       - 71  0  0    71 54 29    2 48  6    44   140   -34   73 13 32   70 37  4   74  5  4   69 48 19
       - 72  0  0    71 50 43    2 48  8    44   139   -34   73  9 57   70 33  7   74  1 36   69 44 16
       - 73  0  0    71 46 42    2 48 11    44   138   -34   73  6  8   70 28 56   73 57 55   69 39 58
       - 74  0  0    71 42 27    2 48 14    44   136   -33   73  2  5   70 24 30   73 54  0   69 35 25
       - 75  0  0    71 37 58    2 48 16    44   135   -33   72 57 49   70 19 48   73 49 53   69 30 36
       - 76  0  0    71 33 14    2 48 19    43   134   -33   72 53 19   70 14 52   73 45 32   69 25 32
       - 77  0  0    71 28 16    2 48 21    43   133   -33   72 48 34   70  9 40   73 40 57   69 20 12
       - 78  0  0    71 23  2    2 48 24    43   132   -33   72 43 35   70  4 13   73 36  8   69 14 36
       - 79  0  0    71 17 33    2 48 27    43   130   -33   72 38 22   69 58 29   73 31  5   69  8 44
       - 80  0  0    71 11 49    2 48 29    43   129   -32   72 32 54   69 52 30   73 25 48   69  2 36
       - 81  0  0    71  5 49    2 48 32    42   128   -32   72 27 10   69 46 15   73 20 16   68 56 11
       - 82  0  0    70 59 33    2 48 35    42   127   -32   72 21 12   69 39 43   73 14 29   68 49 29
       - 83  0  0    70 53  1    2 48 37    42   126   -32   72 14 58   69 32 54   73  8 27   68 42 30
       - 84  0  0    70 46 12    2 48 40    42   125   -32   72  8 28   69 25 48   73  2 10   68 35 14
       - 85  0  0    70 39  7    2 48 43    42   123   -32   72  1 41   69 18 25   72 55 37   68 27 40
       - 86  0  0    70 31 45    2 48 45    41   122   -31   71 54 39   69 10 44   72 48 47   68 19 49
       - 87  0  0    70 24  5    2 48 48    41   121   -31   71 47 20   69  2 46   72 41 42   68 11 39
       - 88  0  0    70 16  8    2 48 51    41   120   -31   71 39 43   68 54 29   72 34 20   68  3 10
       - 89  0  0    70  7 53    2 48 54    41   119   -31   71 31 50   68 45 54   72 26 41   67 54 23
       - 90  0  0    69 59 19    2 48 56    41   117   -31   71 23 38   68 37  0   72 18 45   67 45 17
       - 91  0  0    69 50 27    2 48 59    40   116   -30   71 15  9   68 27 47   72 10 31   67 35 51
       - 92  0  0    69 41 16    2 49  2    40   115   -30   71  6 21   68 18 14   72  1 59   67 26  5
       - 93  0  0    69 31 46    2 49  5    40   114   -30   70 57 15   68  8 22   71 53  9   67 16  0
       - 94  0  0    69 21 56    2 49  8    40   113   -30   70 47 49   67 58 10   71 44  0   67  5 34
       - 95  0  0    69 11 46    2 49 11    39   112   -29   70 38  3   67 47 36   71 34 31   66 54 47
       - 96  0  0    69  1 15    2 49 14    39   110   -29   70 27 58   67 36 42   71 24 43   66 43 39
       - 97  0  0    68 50 23    2 49 17    39   109   -29   70 17 32   67 25 27   71 14 35   66 32  9
       - 98  0  0    68 39 11    2 49 19    39   108   -29   70  6 46   67 13 50   71  4  7   66 20 17
       - 99  0  0    68 27 36    2 49 22    38   107   -28   69 55 38   67  1 51   70 53 17   66  8  3
       -100  0  0    68 15 39    2 49 25    38   106   -28   69 44  8   66 49 29   70 42  6   65 55 26
       -101  0  0    68  3 20    2 49 28    38   105   -28   69 32 17   66 36 44   70 30 33   65 42 26
       -102  0  0    67 50 38    2 49 31    37   104   -28   69 20  2   66 23 36   70 18 38   65 29  3
       -103  0  0    67 37 32    2 49 35    37   102   -27   69  7 25   66 10  4   70  6 20   65 15 15
       -104  0  0    67 24  2    2 49 38    37   101   -27   68 54 23   65 56  8   69 53 39   65  1  3
       -105  0  0    67 10  8    2 49 41    36   100   -27   68 40 58   65 41 47   69 40 33   64 46 26
       -106  0  0    66 55 48    2 49 44    36    99   -26   68 27  8   65 27  1   69 27  4   64 31 24
       -107  0  0    66 41  4    2 49 47    36    98   -26   68 12 53   65 11 49   69 13  9   64 15 57
       -108  0  0    66 25 53    2 49 50    35    97   -26   67 58 12   64 56 12   68 58 49   64  0  3
       -109  0  0    66 10 17    2 49 53    35    96   -25   67 43  6   64 40  8   68 44  3   63 43 42
       -110  0  0    65 54 13    2 49 57    35    95   -25   67 27 32   64 23 37   68 28 50   63 26 55
       -111  0  0    65 37 42    2 50  0    34    93   -25   67 11 31   64  6 38   68 13 10   63  9 40
       -112  0  0    65 20 43    2 50  3    34    92   -24   66 55  3   63 49 12   67 57  3   62 51 57
       -113  0  0    65  3 17    2 50  6    33    91   -24   66 38  6   63 31 18   67 40 27   62 33 46
       -114  0  0    64 45 21    2 50 10    33    90   -24   66 20 40   63 12 54   67 23 22   62 15  7
       -115  0  0    64 26 56    2 50 13    33    89   -23   66  2 46   62 54  2   67  5 48   61 55 58
       -116  0  0    64  8  1    2 50 16    32    88   -23   65 44 21   62 34 40   66 47 45   61 36 20
       -117  0  0    63 48 37    2 50 20    32    87   -22   65 25 26   62 14 49   66 29 10   61 16 12
       -118  0  0    63 28 42    2 50 23    31    86   -22   65  6  1   61 54 27   66 10  5   60 55 34
       -119  0  0    63  8 15    2 50 26    31    85   -21   64 46  4   61 33 34   65 50 29   60 34 26
       -120  0  0    62 47 18    2 50 30    30    84   -21   64 25 35   61 12 10   65 30 20   60 12 47
       -121  0  0    62 25 49    2 50 33    30    83   -21   64  4 34   60 50 15   65  9 39   59 50 36
       -122  0  0    62  3 47    2 50 37    29    82   -20   63 43  1   60 27 48   64 48 26   59 27 54
       -123  0  0    61 41 14    2 50 40    29    81   -20   63 20 55   60  4 50   64 26 38   59  4 41
       -124  0  0    61 18  7    2 50 43    28    80   -19   62 58 15   59 41 19   64  4 17   58 40 55
       -125  0  0    60 54 27    2 50 47    28    79   -19   62 35  1   59 17 16   63 41 22   58 16 38
       -126  0  0    60 30 14    2 50 50    27    78   -18   62 11 14   58 52 40   63 17 53   57 51 48
       -127  0  0    60  5 28    2 50 53    27    77   -18   61 46 52   58 27 31   62 53 48   57 26 26
       -128  0  0    59 40  8    2 50 57    26    76   -17   61 21 56   58  1 49   62 29  9   57  0 32
       -129  0  0    59 14 14    2 51  0    25    75   -16   60 56 25   57 35 34   62  3 54   56 34  5
       -130  0  0    58 47 46    2 51  4    25    74   -16   60 30 19   57  8 47   61 38  4   56  7  5
       -131  0  0    58 20 45    2 51  7    24    73   -15   60  3 39   56 41 26   61 11 38   55 39 34
       -132  0  0    57 53  9    2 51 10    24    72   -15   59 36 23   56 13 33   60 44 36   55 11 29
       -133  0  0    57 24 59    2 51 13    23    71   -14   59  8 32   55 45  6   60 16 58   54 42 53
       -134  0  0    56 56 16    2 51 17    22    70   -13   58 40  6   55 16  7   59 48 45   54 13 44
       -135  0  0    56 26 59    2 51 20    22    69   -13   58 11  6   54 46 35   59 19 56   53 44  4
       -136  0  0    55 57  9    2 51 23    21    68   -12   57 41 31   54 16 32   58 50 31   53 13 52
       -137  0  0    55 26 46    2 51 26    20    67   -11   57 11 21   53 45 56   58 20 31   52 43  9
       -138  0  0    54 55 50    2 51 29    19    66   -11   56 40 37   53 14 49   57 49 56   52 11 55
       -139  0  0    54 24 22    2 51 32    19    65   -10   56  9 20   52 43 11   57 18 46   51 40 11
        ...................................... shortened .............................................
    
    ----------------------------------------------------------------------------
    Jan Manek
    Stefanik Observatory                Private :
    Petrin 205                          Werichova 950
    118 46  Praha 1                     152 00  Praha 5 - Barrandov     |_|_|
    Czech Republic                      Czech Republic                  /   \
    Internet : jan.manek AT worldonline.cz                             |-O-O-|
    --------------------------------------------------------------------U---U---
    

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