GRB19991231 
23:10:38.936 
     13.1200000  40627.0813678
     15.6200000  23249.9988757
     18.1200000  23316.6655652
     20.6200000  12772.9160720
     23.1200000  10110.4162136
     25.6200000   6968.7496929
     28.1200000   5310.4164301
     30.6200000   4013.2810749
     33.1200000   3540.3644308
     35.6200000   2859.6352938
     38.1200000   2839.0623783
     40.6200000   2273.9582325
     43.1200000   2239.3228194
     45.6200000   1878.1249166
     48.1200000   2007.2915829
     50.6200000   1802.6040901
     53.1200000   1678.6457598
     55.6200000   1441.1457694
     60.6200000   1231.1197353
     65.6200000   1081.6405757
     70.6200000    959.6353715
     75.6200000    791.9270458
     80.6200000    744.2707981
     85.6200000    619.4010117
     90.6200000    563.0208062
     95.6200000    539.0624747
    100.6200000    426.2152569
    108.1200000    360.4166486
    115.6200000    319.0104010
    123.1200000    312.3263736
    130.6200000    253.9062376
    138.1200000    225.5208225
    145.6200000    201.2152681
    153.1200000    194.7048518
    160.6200000    173.6979083
    170.6200000    155.6640549
    180.6200000    134.1145765
    190.6200000    130.6640560
    200.6200000    118.0121471
    215.6200000    100.8246478
    230.6200000     99.0017314
    245.6200000     84.4618014
    260.6200000    234.8958217
    265.6200000     39.6614564
    290.6200000     66.6666634
    310.6200000     59.8958303
    330.6200000     51.0416641
    350.6200000     48.4374976
    370.6200000     47.6562479
    390.6200000     38.2812481
    415.6200000     35.7812484
    440.6200000     30.6510402
    465.6200000     30.3124985
    490.6200000     21.1979156
    515.6200000     20.8072907
    540.6200000     19.0624991
    565.6200000     15.4166659
    590.6200000     14.9218743
    615.6200000     12.4999994
    640.6200000     10.5685758
    670.6200000     10.4383675
    700.6200000      8.9409718
    730.6200000      6.8142358