MOA 2021-BLG-291

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Event Parameters

Internal ID:	gb9-R-2-203544
Discovery date:	2021-07-28T11:04:09
RA:	17:58:22.82
Dec:	-28:52:58.16
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
64808	17:58:22.70	-28:52:58.64	15.76 ± 0.07	2.52
64871	17:58:22.91	-28:53:02.19	16.04 ± 0.08	4.87
64885	17:58:22.98	-28:52:59.54	17.31 ± 0.11	2.64
64924	17:58:23.11	-28:53:00.66	17.56 ± 0.12	4.70

Last 5 photometry measurements

Observation date	I mag	seeing
2460572.941 (2024-Sep-19.441)	99.99 ± 99.99	3.90
2460572.952 (2024-Sep-19.452)	23.92 ± 15.75	3.99
2460572.964 (2024-Sep-19.464)	99.99 ± 99.99	5.21
2460573.025 (2024-Sep-19.525)	21.50 ± 4.64	4.69
2460575.916 (2024-Sep-22.416)	18.30 ± 0.46	5.40

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 0.00)

Single lens fit parameters

t_max	=	JD 2459428.46	±	0.07 UT (2021-Aug-1.96)
t_E	=	43.52	±	2.87 days
u₀	=	0.1314	±	0.0113
I_base	=	19.17	±	0.31

External data

Gzipped FITS finder chart

All photometry data

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