MOA 2021-BLG-109

Event Parameters

Internal ID:gb11-R-1-32807
Discovery date:2021-05-03T11:40:35
RA:18:04:30.60
Dec:-31:58:18.05
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
98649 18:04:30.56 -31:58:16.77 15.42 ± 0.06 1.39
98685 18:04:30.75 -31:58:21.04 18.24 ± 0.12 4.05
98706 18:04:30.78 -31:58:13.63 18.06 ± 0.06 4.45
98769 18:04:30.95 -31:58:18.14 18.49 ± 0.05 4.04
98801 18:04:31.01 -31:58:16.22 17.96 ± 0.03 5.00

Last 5 photometry measurements

Observation dateI magseeing
2460246.873 (2023-Oct-29.373) 15.35 ± 0.02 3.99
2460246.934 (2023-Oct-29.434) 15.31 ± 0.02 3.77
2460246.940 (2023-Oct-29.440) 15.34 ± 0.03 4.06
2460246.941 (2023-Oct-29.441) 15.36 ± 0.03 4.15
2460246.943 (2023-Oct-29.443) 15.31 ± 0.03 4.19

Calibration: I = 27.40 - 2.5 log10(ΔF + 61887.08)

Single lens fit parameters

tmax =JD 2459377.42 ± 0.30 UT (2021-Jun-11.92)
tE =35.31 ± 1.96 days
u0 =0.0256 ± 0.0008
Ibase =15.58 ± 0.14

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice