MOA 2019-BLG-428

Event Parameters

Internal ID:gb15-R-9-12027
Discovery date:2019-09-20T13:59:48
RA:18:07:42.42
Dec:-25:24:19.35
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
121077 18:07:42.70 -25:24:21.58 16.85 ± 0.14 4.87
121175 18:07:42.52 -25:24:23.62 17.32 ± 0.06 4.33
121266 18:07:42.34 -25:24:19.93 15.53 ± 0.03 0.53
121267 18:07:42.38 -25:24:23.00 18.48 ± 0.18 3.18
121297 18:07:42.30 -25:24:15.35 18.93 ± 0.14 4.87
121344 18:07:42.21 -25:24:21.66 17.97 ± 0.08 2.91

Last 5 photometry measurements

Observation dateI magseeing
2460570.866 (2024-Sep-17.366) 15.53 ± 0.01 3.42
2460570.937 (2024-Sep-17.437) 15.52 ± 0.01 3.10
2460571.012 (2024-Sep-17.512) 15.56 ± 0.02 3.76
2460572.904 (2024-Sep-19.404) 15.56 ± 0.01 4.14
2460572.958 (2024-Sep-19.458) 15.61 ± 0.03 5.13

Calibration: I = 27.40 - 2.5 log10(ΔF + 55821.31)

Single lens fit parameters

tmax =JD 2458762.71 ± 0.01 UT (2019-Oct-6.21)
tE =48.72 ± 0.79 days
u0 =0.0110 ± 0.0002
Ibase =18.19 ± 0.19

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice