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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Fri 10 May 19 20:25:48 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900688
SRC_RA:          270.1106d {+18h 00m 27s} (J2000),
                 270.4156d {+18h 01m 40s} (current),
                 269.3194d {+17h 57m 17s} (1950)
SRC_DEC:         -28.4201d {-28d 25' 11"} (J2000),
                 -28.4196d {-28d 25' 10"} (current),
                 -28.4187d {-28d 25' 06"} (1950)
DISCOVERY_DATE:  18583 TJD;   100 DOY;   19/04/10 (yy/mm/dd)
DISCOVERY_TIME:  73548 SOD {20:25:48.00} UT
LEAD_TIME:       33.252 [days]
MAX_DATE:        18617 TJD;   134 DOY;   19/05/14 (yy/mm/dd)
MAX_TIME:        8899 SOD {02:28:19.20} UT
MAX_UNCERT:      1.050 [days]
CUSP_WIDTH:      12.15 +/- 0.72 [days]
u0:              0.66 +/- 0.04 [RingUnits]
MAX_MAG:         18.0 mag (estimated)
BASE_MAG:        18.65 +/- 0.00 [mag]
AMPLIFICATION:   1.74 +/- 0.07 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0688.html
SUN_POSTN:        47.45d {+03h 09m 48s}  +17.71d {+17d 42' 39"}
SUN_DIST:        139.27 [deg]   Sun_angle= 9.1 [hr] (West of Sun)
MOON_POSTN:      126.85d {+08h 27m 24s}  +20.50d {+20d 29' 43"}
MOON_DIST:       146.04 [deg]
GAL_COORDS:        2.10, -2.54 [deg] galactic lon,lat of the burst
ECL_COORDS:      270.10, -4.98 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.