//////////////////////////////////////////////////////////////////////
TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Thu 02 May 19 18:49:32 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900638
SRC_RA:          263.5794d {+17h 34m 19s} (J2000),
                 263.8752d {+17h 35m 30s} (current),
                 262.8114d {+17h 31m 15s} (1950)
SRC_DEC:         -24.7739d {-24d 46' 25"} (J2000),
                 -24.7856d {-24d 47' 07"} (current),
                 -24.7409d {-24d 44' 26"} (1950)
DISCOVERY_DATE:  18575 TJD;    92 DOY;   19/04/02 (yy/mm/dd)
DISCOVERY_TIME:  67772 SOD {18:49:32.00} UT
LEAD_TIME:       31.115 [days]
MAX_DATE:        18606 TJD;   123 DOY;   19/05/03 (yy/mm/dd)
MAX_TIME:        77673 SOD {21:34:33.60} UT
MAX_UNCERT:      3.260 [days]
CUSP_WIDTH:      23.34 +/- 3.98 [days]
u0:              0.48 +/- 0.04 [RingUnits]
MAX_MAG:         19.5 mag (estimated)
BASE_MAG:        20.39 +/- 0.00 [mag]
AMPLIFICATION:   2.23 +/- 0.15 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0638.html
SUN_POSTN:        39.64d {+02h 38m 34s}  +15.46d {+15d 27' 36"}
SUN_DIST:        137.62 [deg]   Sun_angle= 9.1 [hr] (West of Sun)
MOON_POSTN:       17.24d {+01h 08m 58s}   +1.92d {+01d 55' 24"}
MOON_DIST:       111.96 [deg]
GAL_COORDS:        2.19,  4.34 [deg] galactic lon,lat of the burst
ECL_COORDS:      264.17, -1.46 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.