MOA 2021-BLG-387

Event Parameters

Internal ID:gb1-R-7-27445
Discovery date:2021-09-15T14:48:08
RA:17:50:14.34
Dec:-34:32:44.08
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
16085 17:50:14.66 -34:32:44.45 18.17 ± 0.07 4.75
16106 17:50:14.63 -34:32:46.37 18.36 ± 0.09 4.69
16161 17:50:14.53 -34:32:43.14 18.61 ± 0.08 3.49
16162 17:50:14.51 -34:32:45.18 18.32 ± 0.10 2.92
16302 17:50:14.26 -34:32:43.63 17.67 ± 0.09 1.19
16382 17:50:14.06 -34:32:41.20 16.47 ± 0.06 4.68
16383 17:50:14.05 -34:32:45.93 17.07 ± 0.05 3.35

Last 5 photometry measurements

Observation dateI magseeing
2460245.923 (2023-Oct-28.423) 17.15 ± 0.18 3.51
2460245.937 (2023-Oct-28.437) 16.87 ± 0.17 4.02
2460246.859 (2023-Oct-29.359) 17.95 ± 0.28 3.81
2460246.892 (2023-Oct-29.392) 17.14 ± 0.16 3.74
2460246.926 (2023-Oct-29.426) 16.98 ± 0.14 3.76

Calibration: I = 27.40 - 2.5 log10(ΔF + 7791.12)

Single lens fit parameters

tmax =JD 2459477.48 ± 0.06 UT (2021-Sep-19.98)
tE =16.17 ± 1.43 days
u0 =0.4741 ± 0.0790
Ibase =17.81 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice