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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Mon 15 Apr 19 17:55:36 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900507
SRC_RA:          267.6443d {+17h 50m 35s} (J2000),
                 267.9377d {+17h 51m 45s} (current),
                 266.8806d {+17h 47m 31s} (1950)
SRC_DEC:         -23.9007d {-23d 54' 02"} (J2000),
                 -23.9048d {-23d 54' 16"} (current),
                 -23.8874d {-23d 53' 14"} (1950)
DISCOVERY_DATE:  18557 TJD;    74 DOY;   19/03/15 (yy/mm/dd)
DISCOVERY_TIME:  64536 SOD {17:55:36.00} UT
LEAD_TIME:       55.142 [days]
MAX_DATE:        18612 TJD;   129 DOY;   19/05/09 (yy/mm/dd)
MAX_TIME:        76809 SOD {21:20:09.59} UT
MAX_UNCERT:      19.020 [days]
CUSP_WIDTH:      40.44 +/- 10.54 [days]
u0:              0.61 +/- 0.33 [RingUnits]
MAX_MAG:         18.6 mag (estimated)
BASE_MAG:        19.24 +/- 0.00 [mag]
AMPLIFICATION:   1.85 +/- 0.78 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0507.html
SUN_POSTN:        23.62d {+01h 34m 28s}   +9.85d {+09d 51' 07"}
SUN_DIST:        117.37 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      158.01d {+10h 32m 02s}  +13.00d {+13d 00' 18"}
MOON_DIST:       113.26 [deg]
GAL_COORDS:        4.89,  1.65 [deg] galactic lon,lat of the burst
ECL_COORDS:      267.85, -0.48 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.