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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Sat 20 Apr 19 19:21:55 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900537
SRC_RA:          269.3926d {+17h 57m 34s} (J2000),
                 269.6961d {+17h 58m 47s} (current),
                 268.6031d {+17h 54m 25s} (1950)
SRC_DEC:         -28.1643d {-28d 09' 50"} (J2000),
                 -28.1652d {-28d 09' 54"} (current),
                 -28.1594d {-28d 09' 33"} (1950)
DISCOVERY_DATE:  18562 TJD;    79 DOY;   19/03/20 (yy/mm/dd)
DISCOVERY_TIME:  69715 SOD {19:21:55.00} UT
LEAD_TIME:       54.435 [days]
MAX_DATE:        18617 TJD;   134 DOY;   19/05/14 (yy/mm/dd)
MAX_TIME:        20908 SOD {05:48:28.80} UT
MAX_UNCERT:      4.330 [days]
CUSP_WIDTH:      56.46 +/- 4.89 [days]
u0:              0.16 +/- 0.07 [RingUnits]
MAX_MAG:         13.0 mag (estimated)
BASE_MAG:        14.97 +/- 0.00 [mag]
AMPLIFICATION:   6.10 +/- 2.85 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0537.html
SUN_POSTN:        28.32d {+01h 53m 17s}  +11.62d {+11d 37' 14"}
SUN_DIST:        120.58 [deg]   Sun_angle= 7.9 [hr] (West of Sun)
MOON_POSTN:      227.04d {+15h 08m 09s}  -13.00d {-13d 00' 16"}
MOON_DIST:        42.45 [deg]
GAL_COORDS:        2.00, -1.86 [deg] galactic lon,lat of the burst
ECL_COORDS:      269.46, -4.73 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.