MOA 2023-BLG-397

Event Parameters

Internal ID:gb4-R-3-97049
Discovery date:2023-08-23T07:40:16
RA:17:52:34.56
Dec:-30:59:27.17
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
116170 17:52:34.52 -30:59:25.14 17.81 ± 0.09 1.89
116237 17:52:34.67 -30:59:23.48 16.85 ± 0.09 3.32
40251 17:52:34.50 -30:59:30.82 18.78 ± 0.13 4.62
40343 17:52:34.66 -30:59:28.56 18.52 ± 0.14 2.32

Last 5 photometry measurements

Observation dateI magseeing
2460246.887 (2023-Oct-29.387) 99.99 ± 99.99 3.36
2460246.898 (2023-Oct-29.398) 99.99 ± 99.99 2.84
2460246.909 (2023-Oct-29.409) 19.94 ± 1.31 3.27
2460246.920 (2023-Oct-29.420) 99.99 ± 99.99 3.58
2460246.929 (2023-Oct-29.429) 21.29 ± 5.48 3.56

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

Single lens fit parameters

tmax =JD 2460181.80 ± 0.01 UT (2023-Aug-25.30)
tE =59.83 ± 1.70 days
u0 =0.0154 ± 0.0005
Ibase =21.13 ± 0.21

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice