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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Mon 07 Aug 17 19:53:10 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201701521
SRC_RA:          270.6499d {+18h 02m 36s} (J2000),
                 270.9254d {+18h 03m 42s} (current),
                 269.8634d {+17h 59m 27s} (1950)
SRC_DEC:         -27.6657d {-27d 39' 56"} (J2000),
                 -27.6644d {-27d 39' 51"} (current),
                 -27.6669d {-27d 40' 00"} (1950)
DISCOVERY_DATE:  17941 TJD;   188 DOY;   17/07/07 (yy/mm/dd)
DISCOVERY_TIME:  71590 SOD {19:53:10.00} UT
LEAD_TIME:       32.047 [days]
MAX_DATE:        17973 TJD;   220 DOY;   17/08/08 (yy/mm/dd)
MAX_TIME:        75686 SOD {21:01:26.40} UT
MAX_UNCERT:      0.710 [days]
CUSP_WIDTH:      66.12 +/- 13.05 [days]
u0:              0.05 +/- 0.01 [RingUnits]
MAX_MAG:         15.1 mag (estimated)
BASE_MAG:        18.23 +/- 0.00 [mag]
AMPLIFICATION:   17.19 +/- 4.12 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-1521.html
SUN_POSTN:       137.96d {+09h 11m 49s}  +16.19d {+16d 11' 21"}
SUN_DIST:        135.17 [deg]   Sun_angle= -8.9 [hr] (East of Sun)
MOON_POSTN:      318.63d {+21h 14m 32s}  -15.13d {-15d 07' 53"}
MOON_DIST:        45.85 [deg]
GAL_COORDS:        2.99, -2.58 [deg] galactic lon,lat of the burst
ECL_COORDS:      270.58, -4.23 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.