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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Mon 15 Apr 19 17:55:28 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900504
SRC_RA:          270.6941d {+18h 02m 47s} (J2000),
                 270.9969d {+18h 03m 59s} (current),
                 269.9056d {+17h 59m 37s} (1950)
SRC_DEC:         -27.9921d {-27d 59' 31"} (J2000),
                 -27.9905d {-27d 59' 25"} (current),
                 -27.9936d {-27d 59' 36"} (1950)
DISCOVERY_DATE:  18557 TJD;    74 DOY;   19/03/15 (yy/mm/dd)
DISCOVERY_TIME:  64528 SOD {17:55:28.00} UT
LEAD_TIME:       31.835 [days]
MAX_DATE:        18589 TJD;   106 DOY;   19/04/16 (yy/mm/dd)
MAX_TIME:        50284 SOD {13:58:04.79} UT
MAX_UNCERT:      0.930 [days]
CUSP_WIDTH:      3.72 +/- 0.53 [days]
u0:              1.59 +/- 0.05 [RingUnits]
MAX_MAG:         17.5 mag (estimated)
BASE_MAG:        17.65 +/- 0.00 [mag]
AMPLIFICATION:   1.11 +/- 0.01 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0504.html
SUN_POSTN:        23.62d {+01h 34m 28s}   +9.85d {+09d 51' 07"}
SUN_DIST:        114.51 [deg]   Sun_angle= 7.5 [hr] (West of Sun)
MOON_POSTN:      158.01d {+10h 32m 02s}  +13.01d {+13d 00' 19"}
MOON_DIST:       116.21 [deg]
GAL_COORDS:        2.72, -2.77 [deg] galactic lon,lat of the burst
ECL_COORDS:      270.61, -4.55 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.