MOA 2017-BLG-441

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Event Parameters

Internal ID:	gb17-R-4-18808
Discovery date:	2017-08-30T14:12:49
RA:	18:09:31.83
Dec:	-27:43:20.63
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
118157	18:09:31.70	-27:43:20.61	17.83 ± 0.06	2.43
118218	18:09:31.83	-27:43:23.86	19.13 ± 0.17	4.02
118219	18:09:31.84	-27:43:15.47	16.97 ± 0.10	4.77
118246	18:09:31.87	-27:43:20.28	19.00 ± 0.22	0.25

Last 5 photometry measurements

Observation date	I mag	seeing
2460245.899 (2023-Oct-28.399)	18.83 ± 0.26	3.20
2460245.931 (2023-Oct-28.431)	18.80 ± 0.34	3.39
2460246.862 (2023-Oct-29.362)	18.69 ± 0.19	3.58
2460246.903 (2023-Oct-29.403)	19.05 ± 0.41	3.40
2460246.931 (2023-Oct-29.431)	18.85 ± 0.43	3.74

Calibration: I = 27.40 - 2.5 log₁₀(ΔF + 2280.34)

Single lens fit parameters

t_max	=	JD 2458000.94	±	0.00 UT (2017-Sep-4.44)
t_E	=	24.05	±	0.22 days
u₀	=	0.0159	±	0.0002
I_base	=	18.41	±	0.21

External data

Gzipped FITS finder chart

All photometry data

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