MOA 2021-BLG-307

Event Parameters

Internal ID:gb18-R-3-25095
Discovery date:2021-08-03T12:20:31
RA:18:09:04.82
Dec:-25:39:04.17
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
97757 18:09:04.84 -25:39:03.49 18.23 ± 0.07 0.29
97773 18:09:04.90 -25:38:59.80 18.77 ± 0.10 3.97
97804 18:09:05.06 -25:38:59.86 18.12 ± 0.10 4.81
97839 18:09:05.06 -25:39:07.53 17.94 ± 0.06 4.99
97856 18:09:05.12 -25:39:02.44 17.15 ± 0.11 3.85

Last 5 photometry measurements

Observation dateI magseeing
2460610.878 (2024-Oct-27.378) 20.92 ± 9.46 5.33
2460610.915 (2024-Oct-27.415) 20.34 ± 4.09 5.05
2460611.890 (2024-Oct-28.390) 18.59 ± 0.34 4.44
2460611.925 (2024-Oct-28.425) 99.99 ± 99.99 5.65
2460614.883 (2024-Oct-31.383) 99.99 ± 99.99 5.50

Calibration: I = 27.40 - 2.5 log10(ΔF + 4660.15)

Single lens fit parameters

tmax =JD 2459442.76 ± 0.02 UT (2021-Aug-16.26)
tE =31.72 ± 0.62 days
u0 =0.1212 ± 0.0034
Ibase =18.39 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice