MOA 2019-BLG-438

Event Parameters

Internal ID:gb16-R-8-8772
Discovery date:2019-10-05T20:15:19
RA:18:12:30.57
Dec:-29:11:45.04
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
80174 18:12:30.85 -29:11:44.48 17.64 ± 0.09 4.54
80281 18:12:30.60 -29:11:43.70 17.44 ± 0.07 2.24
80282 18:12:30.60 -29:11:49.17 18.80 ± 0.14 3.82
80320 18:12:30.52 -29:11:45.49 17.55 ± 0.09 0.17
80429 18:12:30.30 -29:11:44.90 18.77 ± 0.17 3.07
80430 18:12:30.30 -29:11:47.74 16.45 ± 0.04 3.68

Last 5 photometry measurements

Observation dateI magseeing
2460245.910 (2023-Oct-28.410) 17.58 ± 0.07 2.98
2460245.939 (2023-Oct-28.439) 17.41 ± 0.10 3.52
2460246.866 (2023-Oct-29.366) 17.63 ± 0.07 3.41
2460246.913 (2023-Oct-29.413) 17.55 ± 0.08 3.21
2460246.937 (2023-Oct-29.437) 17.47 ± 0.11 3.84

Calibration: I = 27.40 - 2.5 log10(ΔF + 8701.62)

Single lens fit parameters

tmax =JD 2458766.14 ± 0.03 UT (2019-Oct-9.64)
tE =18.45 ± 0.58 days
u0 =0.3836 ± 0.0216
Ibase =16.79 ± 0.21

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice