MOA 2021-BLG-229

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Event Parameters

Internal ID:	gb8-R-9-30440
Discovery date:	2021-07-07T16:42:41
RA:	18:02:32.50
Dec:	-30:36:18.34
Current assessment:	microlensing

A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starID	RA	Dec	mag	separation
14503	18:02:32.65	-30:36:21.69	18.25 ± 0.11	3.92
14550	18:02:32.53	-30:36:16.27	18.25 ± 0.09	2.97
14611	18:02:32.42	-30:36:22.95	17.73 ± 0.11	4.24
14704	18:02:32.27	-30:36:21.56	17.10 ± 0.09	3.71

Last 5 photometry measurements

Observation date	I mag	seeing
2460245.888 (2023-Oct-28.388)	18.44 ± 0.45	3.64
2460245.921 (2023-Oct-28.421)	20.05 ± 2.69	3.82
2460246.858 (2023-Oct-29.358)	18.78 ± 0.84	3.65
2460246.891 (2023-Oct-29.391)	21.70 ± 10.41	3.71
2460246.925 (2023-Oct-29.425)	99.99 ± 99.99	3.47

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

Single lens fit parameters

t_max	=	JD 2459402.58	±	0.05 UT (2021-Jul-7.08)
t_E	=	78.15	±	13.04 days
u₀	=	0.0039	±	0.0002
I_base	=	22.99	±	0.16

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice