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TITLE:           GCN/OGLE NOTICE
NOTICE_DATE:     Sat 07 Apr 12 21:24:32 UT
NOTICE_TYPE:     OGLE Lensing Event
SRC_ID_NUM:      201200420
SRC_RA:          258.5271d {+17h 14m 07s} (J2000),
                 258.7215d {+17h 14m 53s} (current),
                 257.7298d {+17h 10m 55s} (1950)
SRC_DEC:         -29.9393d {-29d 56' 20"} (J2000),
                 -29.9527d {-29d 57' 09"} (current),
                 -29.8820d {-29d 52' 54"} (1950)
DISCOVERY_DATE:  15993 TJD;    67 DOY;   12/03/07 (yy/mm/dd)
DISCOVERY_TIME:  77072 SOD {21:24:32.00} UT
LEAD_TIME:       42.276 [days]
MAX_DATE:        16036 TJD;   110 DOY;   12/04/19 (yy/mm/dd)
MAX_TIME:        14515 SOD {04:01:55.20} UT
MAX_UNCERT:      9.920 [days]
CUSP_WIDTH:      22.58 +/- 5.81 [days]
u0:              0.60 +/- 0.30 [RingUnits]
MAX_MAG:         18.7 mag (estimated)
BASE_MAG:        19.36 +/- 0.00 [mag]
AMPLIFICATION:   1.86 +/- 0.71 factor
LC_URL:          http://www.astrouw.edu.pl/~ogle/ogle4/ews/blg-0420.html
SUN_POSTN:        17.03d {+01h 08m 06s}   +7.23d {+07d 14' 01"}
SUN_DIST:        118.06 [deg]   Sun_angle= 7.9 [hr] (West of Sun)
MOON_POSTN:      210.65d {+14h 02m 36s}  -15.43d {-15d 25' 30"}
MOON_DIST:        46.30 [deg]
GAL_COORDS:      355.38,  5.17 [deg] galactic lon,lat of the burst
ECL_COORDS:      260.00, -6.90 [deg] ecliptic lon,lat of the burst
COMMENTS:        OGLE Gravitational Lensing Event.