PLANET Anomaly Alerts

If you would like to be included in the distribution, please provide your e-mail address to planet at iap.fr. If you have not received any subsequent alert listed below, your proper details are most likely not included in our list.

Alerts in 2007

Alert 2007 #2 (5-Jul, 18:55 UT):   MOA 2007-BLG-197: Sudden rise and fall

Alerts in 2006

Alert 2006 #1 (30-Apr, 9:00 UT):   Start of 2006 Season
Alert 2006 #2 (6-May, 7:25 UT):   OGLE 2006-BLG-207: suspected caustic entry
Update 2006 #2-1 (7-May, 6:55 UT):   Source has left caustic after two peaks
Alert 2006 #3 (22-May, 18:55 UT):   OGLE 2006-BLG-238: short anomaly? / planetary origin?
Alert 2006 #4 (7-Jun, 22:00 UT):   MOA 2006-BLG-003: Possible caustic entry
Update 2006 #4-1 (8-Jun, 8:30 UT):   Caustic entry caught
Update 2006 #4-2 (13-Jun, 9:00 UT):   Fold-caustic exit to be completed within next 18 hrs
Update 2006 #4-3 (14-Jun, 21:15 UT):   PLANET collaboration catches caustic exit
Alert 2006 #5 (17-Jun, 8:35 UT):   OGLE 2006-BLG-304 near end of fold-caustic exit

Update 2006 #5-1 (17-Jun, 9:15 UT):   Caustic exit completed
Alert 2006 #6 (29-Jun, 12:50 UT):   Suspected planetary deviation in OGLE 2006-BLG-335
Update 2006 #6-1 (1-Jul, 23:20 UT):   Suspected deviation
Update 2006 #6-2 (2-Jul, 2:25 UT):   Large deviation
Update 2006 #6-3 (5-Jul, 7:50 UT):   Rising, caustic exit expected
Update 2006 #6-4 (5-Jul, 14:45 UT):   Caustic exit in progress
Update 2006 #6-5 (5-Jul, 17:10 UT):   Caustic exit completed
Alert 2006 #7 (6-Jul, 8:40 UT):   Suspected deviation in OGLE 2006-BLG-355
Update 2006 #7-1 (6-Jul, 10:30 UT):   OGLE 2006-BLG-355 rising and falling rapidly

Alert 2006 #8 (9-Jul, 7:00 UT):   High magnification in OGLE 2006-BLG-359
Alert 2006 #9 (16-Jul, 15:15 UT):   Possible caustic entry in OGLE 2006-BLG-277
Update 2006 #9-1 (16-Jul, 19:25 UT):   Source likely to exit caustic within 5 hrs
Update 2006 #9-2 (17-Jul, 5:35 UT):   Event brightened by 1.7 mag during fold-caustic entry and is approaching plateau
Update 2006 #9-3 (3-Aug, 14:30 UT):   Caustic exit
Alert 2006 #10 (18-Jul, 13:45 UT):   OGLE 2006-BLG-398 underwent caustic exit
Alert 2006 #11 (21-Jul, 11:20 UT):   Source star in OGLE 2006-BLG-375 entered caustic
Update 2006 #11-1 (22-Jul, 14:50 UT):   Rising to caustic exit
Alert 2006 #12 (4-Aug, 15:15 UT):   OGLE 2006-BLG-435 = MOA 2006-BLG-126 underwent a very quick caustic exit
Alert 2006 #13 (15-Aug, 7:30 UT):   Anomaly near expected peak of MOA 2006-BLG-132
Alert 2006 #14 (17-Aug, 7:00 UT):   Smooth rise in MOA 2006-BLG-450
Update 2006 #14-1 (17-Aug, 14:05 UT):   OGLE 2006-BLG-450 falling
Update 2006 #14-2 (18-Aug, 6:15 UT):   Flat data prefer caustic exit

Alerts in 2005

Alert 2005 #0 (9-May, 23:15 UT):   OGLE 2005-BLG-018 expected to undergo fold-caustic entry
Update 2005 #0-1 (18-May, 18:10 UT):   Cusp approach expected prior to pair of fold-caustic passages
Update 2005 #0-2 (21-May, 8:10 UT):   Cusp passage in progress
Update 2005 #0-3 (21-May, 13:45 UT):   Cusp passage duration about 1.8 days ?
Update 2005 #0-4 (23-May, 16:25 UT):   Peak expected to be passed and event on decrease
Update 2005 #0-5 (25-May, 10:20 UT):   Caustic exit approaching / Further long caustic passage expected
Update 2005 #0-6 (1-Jun, 9:15 UT):   Caustic re-entry expected soon
Update 2005 #0-7 (3-Jun, 1:00 UT):   Source has re-entered caustic
Update 2005 #0-8 (5-Jun, 14:30 UT):   Further progress of the second caustic passage
Update 2005 #0-9 (13-Jun, 11:10 UT):   Final caustic exit passed
Alert 2005 #1 (15-May, 7:40 UT):   Start of 2005 Season
Alert 2005 #2 (20-May, 7:20 UT):   OGLE 2005-BLG-158 / MOA 2005-BLG-17 peaks at A > 90
Update 2005 #2-1 (20-May, 14:40 UT):   PLANET observations over peak reveal finite-source effects
Alert 2005 #3 (22-May, 8:50 UT):   Anomaly near expected peak in OGLE 2005-BLG-216
Alert 2005 #4 (19-Jun, 6:40 UT):   Caustic exit in OGLE 2005-BLG-128 expected within the next few hours
Update 2005 #4-1 (21-Jun, 12:50 UT):   Source has exited caustic - light curve now flat
Alert 2005 #5 (29-Jun, 21:40 UT):   OGLE 2005-BLG-333 has passed A_0 ~ 60 peak and might show anomaly
Alert 2005 #6 (2-Jul, 11:55 UT):   OGLE 2005-BLG-331 likely to undergo caustic entry
Update 2005 #6-1 (4-Jul, 4:45 UT):   Binary-source-binary-lens or triple lens?
Update 2005 #6-2 (18-Jul, 0:05 UT):   Caustic exit(s) likely to have passed
Alert 2005 #7 (3-Jul, 18:15 UT):   OGLE 2005-BLG-153/MOA 2005-BLG-23 possible caustic entry
Update 2005 #7-1 (4-Jul, 11:50 UT):   Long-duration caustic entry in progress
Update 2005 #7-2 (8-Jul, 9:15 UT):   Rise to caustic exit peak
Update 2005 #7-3 (9-Jul, 12:15 UT):   On the decrease from exit peak and leaving caustic in about 18 hrs
Alert 2005 #8 (19-Jul, 8:45 UT):   OGLE 2005-BLG-377 shows further rise after first peak
Update 2005 #8-1 (20-Jul, 5:55 UT):   Normal event
Alert 2005 #9 (22-Jul, 3:25 UT):   OGLE 2005-BLG-226 shows significant peak anomaly
Update 2005 #9-1 (22-Jul, 12:20 UT):   Caustic passage of finite source
Update 2005 #9-2 (23-Jul, 7:50 UT):   Caustic exited
Alert 2005 #10 (22-Jul, 6:20 UT):   OGLE 2005-BLG-327 risen ~1.5 mag above single-lens model
Update 2005 #10-1 (23-Jul, 8:20 UT):   Anomaly persists with roughly flat curve
Update 2005 #10-2 (26-Jul, 8:55 UT):   Rise observed - Caustic exit in progress?
Update 2005 #10-3 (28-Jul, 18:05 UT):   Caustic exit now underway - Planetary origin?
Update 2005 #10-4 (29-Jul, 8:15 UT):   Caustic exit monitored - Probably not a planet
Update 2005 #10-5 (30-Jul, 8:35 UT):   Source has left caustic - now decreasing
Update 2005 #10-6 (15-Aug, 7:40 UT):   Another caustic entry suspected
Alert 2005 #11 (11-Aug, 13:45 UT):   OGLE 2005-BLG-436 reveals finite source size
Alert 2005 #12 (12-Aug, 14:30 UT):   OGLE 2005-BLG-434 shows short duration anomaly near peak

Alerts in 2004

Alert 2004 #1 (27-May, 8:00 UT):   Start of 2004 Season
Alert 2004 #2 (1-Jun, 13:45 UT):   2004 Observing Season now underway
Alert 2004 #3 (2-Jun, 13:40 UT):   OGLE 2004-BLG-273 undergoing caustic exit
Update 2004 #3-1 (5-Jun, 14:05 UT):   OGLE 2004-BLG-273 to show further anomalies
Update 2004 #3-2 (6-Jun, 15:35 UT):   OGLE 2004-BLG-273 shows strong rise
Alert 2004 #4 (3-Jun, 20:45 UT):   Possible caustic passages in OGLE 2004-BLG-159
Update 2004 #4-1 (4-Jun, 13:25 UT):   No evidence for suspected caustic entry
Alert 2004 #5 (9-Jun, 20:50 UT):   OGLE 2004-BLG-254: High-magnification peak expected
Update 2004 #5-1 (10-Jun, 4:10 UT):   OGLE 2004-BLG-254 update: Finite source apparent
Update 2004 #5-2 (10-Jun, 12:45 UT):   Ongoing finite source effects after high-magnification peak
Update 2004 #5-3 (10-Jun, 21:40 UT):   Finite source has exited caustic

Alert 2004 #6 (11-Jun, 12:10 UT):   OGLE 2004-BLG-274 Anomaly Detected
Update 2004 #6-1 (11-Jun, 14:00 UT):   OGLE 2004-BLG-274 Anomaly Interpretation Retracted
Alert 2004 #7 (17-Jun, 9:40 UT):   OGLE 2004-BLG-250 probably approaching caustic exit
Update 2004 #7-1 (17-Jun, 14:30 UT):   Sudden and short caustic exit in OGLE 2004-BLG-250
Alert 2004 #8 (24-Jun, 10:45 UT):   Anomalous high-magnification event MOA-2004-BLG-33 / OGLE 2004-BLG-367
Update 2004 #8-1 (26-Jun, 04:00 UT) New decline from 'plateau' in event MOA-2004-BLG-33 / OGLE 2004-BLG-367
Alert 2004 #9 (28-Jun, 15:35 UT):   OGLE 2004-BLG-280 anomaly: Planetary caustic crossed?
Alert 2004 #10 (28-Jun, 23:55 UT):   OGLE 2004-BLG-368 anomaly: possible planetary caustics
Update 2004 #10-1 (29-Jun, 9:30 UT):   Observation of second peak
Update 2004 #10-2 (30-Jun, 9:40 UT):   Source has exited caustic
Update 2004 #10-3 (5-Jul, 8:30 UT):   More information about caustic passage
Alert 2004 #11 (15-Jul, 8:30 UT):   Caustic exit in OGLE 2004-BLG-373 now?
Update 2004 #11-1 (16-Jul, 7:20 UT):   Caustic exit to come soon
Update 2004 #11-2 (16-Jul, 23:30 UT):   Caustic exit ocuured
Alert 2004 #12 (17-Jul, 21:35 UT):   Caustic exit in OGLE 2004-BLG-379
Alert 2004 #13 (19-Jul, 23:13 UT):   Caustic exit in OGLE 2004-BLG-309
Update 2004 #13-1 (26-Jul, 14:20 UT):   PLANET observations reveal limb darkening
Alert 2004 #14 (31-Jul, 8:05 UT):   OGLE 2004-BLG-347 rises to second peak
Update 2004 #14-1 (6-Aug, 7:45 UT):   Smooth second peak observed
Alert 2004 #15 (16-Aug, 16:05 UT):   OGLE 2004-BLG-482 rising to high magnification
Update 2004 #15-1 (17-Aug, 13:30 UT):   Finite source effects in progress?
Update 2004 #15-2 (18-Aug, 9:30 UT):   Trailing limb caustic exit in about 24h
Update 2004 #15-3 (20-Aug, 7:30 UT):   Caustic passage over
Alert 2004 #16 (1-Oct, 14:15 UT):   End of PLANET 2004 observing season