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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Sun 28 Apr 19 21:40:01 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201900561
SRC_RA:          268.6738d {+17h 54m 42s} (J2000),
                 268.9790d {+17h 55m 55s} (current),
                 267.8808d {+17h 51m 31s} (1950)
SRC_DEC:         -28.7291d {-28d 43' 44"} (J2000),
                 -28.7313d {-28d 43' 52"} (current),
                 -28.7207d {-28d 43' 14"} (1950)
DISCOVERY_DATE:  18570 TJD;    87 DOY;   19/03/28 (yy/mm/dd)
DISCOVERY_TIME:  78001 SOD {21:40:01.00} UT
LEAD_TIME:       41.636 [days]
MAX_DATE:        18612 TJD;   129 DOY;   19/05/09 (yy/mm/dd)
MAX_TIME:        46569 SOD {12:56:09.59} UT
MAX_UNCERT:      3.300 [days]
CUSP_WIDTH:      27.33 +/- 2.17 [days]
u0:              0.77 +/- 0.05 [RingUnits]
MAX_MAG:         18.3 mag (estimated)
BASE_MAG:        18.81 +/- 0.00 [mag]
AMPLIFICATION:   1.56 +/- 0.07 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0561.html
SUN_POSTN:        35.94d {+02h 23m 46s}  +14.28d {+14d 16' 32"}
SUN_DIST:        129.01 [deg]   Sun_angle= 8.5 [hr] (West of Sun)
MOON_POSTN:      332.88d {+22h 11m 31s}  -14.55d {-14d 32' 47"}
MOON_DIST:        60.39 [deg]
GAL_COORDS:        1.20, -1.60 [deg] galactic lon,lat of the burst
ECL_COORDS:      268.83, -5.30 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.