GRB19991228 
00:42:52.087 
     13.1200000   7915.1038031
     15.6200000   9838.5412054
     18.1200000  13260.4160471
     20.6200000  13680.2076950
     23.1200000  13133.3327129
     25.6200000  10661.4578333
     28.1200000   9557.8120455
     30.6200000   8193.2287807
     33.1200000   7943.7496260
     35.6200000   6899.9996716
     38.1200000   6784.8955124
     40.6200000   5971.3538839
     43.1200000   5514.5830734
     45.6200000   4777.6039412
     48.1200000   4599.4789494
     50.6200000   4109.8956379
     53.1200000   3853.3852344
     55.6200000   3114.0623524
     60.6200000   2540.1040472
     65.6200000   2057.5519856
     70.6200000   1721.6145018
     75.6200000   1464.1926384
     80.6200000   1192.5780686
     85.6200000   1036.8489091
     90.6200000    842.7082943
     95.6200000    734.3749649
    100.6200000    592.6215000
    108.1200000    508.8541423
    115.6200000    412.9340083
    123.1200000    339.1492899
    130.6200000    246.3541550
    138.1200000    229.7742947
    145.6200000    209.8958234
    153.1200000    187.2395747
    160.6200000    156.1197845
    170.6200000    123.9583275
    180.6200000     97.7864536
    190.6200000     88.3463501
    200.6200000     75.7378438
    215.6200000     61.7187471
    230.6200000     54.2100669
    245.6200000     42.9687480
    260.6200000    109.3749949
    265.6200000     22.1874990
    290.6200000     30.2408840
    310.6200000     25.7812488
    330.6200000     22.0052073
    350.6200000     25.7161447
    370.6200000     18.6848950
    390.6200000     13.7239577
    415.6200000     12.1354161
    440.6200000     11.8749995
    465.6200000     10.2343746
    490.6200000      8.0208329
    515.6200000      7.7604163
    540.6200000      7.4479163
    565.6200000      7.7864580
    590.6200000      5.0260414
    615.6200000      6.0156247
    640.6200000      6.7274303
    670.6200000      3.4071179
    700.6200000      4.4270831
    730.6200000      3.1467012