MOA 2021-BLG-397

Event Parameters

Internal ID:gb8-R-6-10474
Discovery date:2021-09-18T19:38:15
RA:18:02:23.07
Dec:-31:47:29.76
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
93719 18:02:23.28 -31:47:32.36 17.39 ± 0.15 4.12
93799 18:02:23.07 -31:47:31.04 18.56 ± 0.07 1.01
93850 18:02:22.95 -31:47:26.91 15.21 ± 0.08 3.82
93851 18:02:23.01 -31:47:34.03 17.37 ± 0.16 3.92

Last 5 photometry measurements

Observation dateI magseeing
2460572.897 (2024-Sep-19.397) 18.47 ± 0.23 4.19
2460572.937 (2024-Sep-19.437) 18.98 ± 0.34 4.09
2460573.022 (2024-Sep-19.522) 18.84 ± 0.55 4.78
2460574.033 (2024-Sep-20.533) 18.58 ± 0.41 4.93
2460575.923 (2024-Sep-22.423) 99.99 ± 99.99 4.72

Calibration: I = 27.40 - 2.5 log10(ΔF + 3422.95)

Single lens fit parameters

tmax =JD 2459476.03 ± 0.02 UT (2021-Sep-18.53)
tE =8.95 ± 1.18 days
u0 =0.0441 ± 0.0079
Ibase =19.61 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice