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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Sun 21 Apr 19 19:42:17 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900542
SRC_RA:          269.1534d {+17h 56m 37s} (J2000),
                 269.4689d {+17h 57m 53s} (current),
                 268.3326d {+17h 53m 20s} (1950)
SRC_DEC:         -32.9314d {-32d 55' 52"} (J2000),
                 -32.9327d {-32d 55' 57"} (current),
                 -32.9253d {-32d 55' 30"} (1950)
DISCOVERY_DATE:  18563 TJD;    80 DOY;   19/03/21 (yy/mm/dd)
DISCOVERY_TIME:  70937 SOD {19:42:17.00} UT
LEAD_TIME:       42.039 [days]
MAX_DATE:        18605 TJD;   122 DOY;   19/05/02 (yy/mm/dd)
MAX_TIME:        74303 SOD {20:38:23.99} UT
MAX_UNCERT:      6.230 [days]
CUSP_WIDTH:      21.77 +/- 3.92 [days]
u0:              0.34 +/- 0.32 [RingUnits]
MAX_MAG:         18.7 mag (estimated)
BASE_MAG:        19.92 +/- 0.00 [mag]
AMPLIFICATION:   3.01 +/- 2.57 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0542.html
SUN_POSTN:        29.27d {+01h 57m 04s}  +11.97d {+11d 57' 56"}
SUN_DIST:        121.38 [deg]   Sun_angle= 8.0 [hr] (West of Sun)
MOON_POSTN:      240.87d {+16h 03m 30s}  -16.92d {-16d 55' 10"}
MOON_DIST:        30.32 [deg]
GAL_COORDS:      357.77, -4.07 [deg] galactic lon,lat of the burst
ECL_COORDS:      269.28, -9.49 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.