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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Thu 02 May 19 18:49:30 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900637
SRC_RA:          267.7782d {+17h 51m 07s} (J2000),
                 268.0729d {+17h 52m 17s} (current),
                 267.0131d {+17h 48m 03s} (1950)
SRC_DEC:         -24.1360d {-24d 08' 09"} (J2000),
                 -24.1399d {-24d 08' 23"} (current),
                 -24.1233d {-24d 07' 23"} (1950)
DISCOVERY_DATE:  18575 TJD;    92 DOY;   19/04/02 (yy/mm/dd)
DISCOVERY_TIME:  67770 SOD {18:49:30.00} UT
LEAD_TIME:       142.579 [days]
MAX_DATE:        18718 TJD;   235 DOY;   19/08/23 (yy/mm/dd)
MAX_TIME:        31363 SOD {08:42:43.19} UT
MAX_UNCERT:      56.490 [days]
CUSP_WIDTH:      104.00 +/- 22.05 [days]
u0:              0.61 +/- 0.60 [RingUnits]
MAX_MAG:         17.7 mag (estimated)
BASE_MAG:        18.41 +/- 0.00 [mag]
AMPLIFICATION:   1.84 +/- 1.40 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0637.html
SUN_POSTN:        39.64d {+02h 38m 34s}  +15.46d {+15d 27' 36"}
SUN_DIST:        133.84 [deg]   Sun_angle= 8.8 [hr] (West of Sun)
MOON_POSTN:       17.24d {+01h 08m 58s}   +1.92d {+01d 55' 23"}
MOON_DIST:       108.25 [deg]
GAL_COORDS:        4.75,  1.42 [deg] galactic lon,lat of the burst
ECL_COORDS:      267.97, -0.71 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.