MOA 2019-BLG-431

Event Parameters

Internal ID:gb3-R-3-35817
Discovery date:2019-09-21T03:27:56
RA:17:51:44.13
Dec:-32:41:22.51
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
108136 17:51:43.90 -32:41:22.79 19.89 ± 0.30 3.77
108222 17:51:44.09 -32:41:25.60 17.05 ± 0.12 3.97
108223 17:51:44.08 -32:41:18.47 19.02 ± 0.16 3.80
108266 17:51:44.19 -32:41:22.00 16.71 ± 0.04 0.19
108330 17:51:44.31 -32:41:25.18 16.87 ± 0.10 3.81
108399 17:51:44.53 -32:41:20.81 15.57 ± 0.09 4.68

Last 5 photometry measurements

Observation dateI magseeing
2460246.899 (2023-Oct-29.399) 16.52 ± 0.04 3.15
2460246.910 (2023-Oct-29.410) 16.65 ± 0.07 3.37
2460246.922 (2023-Oct-29.422) 16.58 ± 0.08 3.68
2460246.930 (2023-Oct-29.430) 16.51 ± 0.08 3.59
2460246.933 (2023-Oct-29.433) 16.38 ± 0.08 3.78

Calibration: I = 27.40 - 2.5 log10(ΔF + 18897.31)

Single lens fit parameters

tmax =JD 2458744.91 ± 0.14 UT (2019-Sep-18.41)
tE =40.08 ± 1.66 days
u0 =0.5694 ± 0.0379
Ibase =17.69 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice