MOA 2021-BLG-253

Event Parameters

Internal ID:gb8-R-4-21930
Discovery date:2021-07-11T17:45:52
RA:17:59:28.36
Dec:-31:28:22.29
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
66883 17:59:28.05 -31:28:23.27 18.85 ± 0.16 4.89
66903 17:59:28.10 -31:28:19.43 18.86 ± 0.18 4.71
66958 17:59:28.19 -31:28:25.67 17.52 ± 0.10 4.98
67072 17:59:28.40 -31:28:19.72 17.38 ± 0.09 2.06
67073 17:59:28.43 -31:28:17.33 18.58 ± 0.08 4.56
67110 17:59:28.49 -31:28:24.94 19.17 ± 0.15 3.55
67136 17:59:28.56 -31:28:20.62 17.91 ± 0.15 2.36

Last 5 photometry measurements

Observation dateI magseeing
2460572.897 (2024-Sep-19.397) 99.99 ± 99.99 4.08
2460572.937 (2024-Sep-19.437) 24.34 ± 38.55 3.89
2460573.022 (2024-Sep-19.522) 18.27 ± 0.28 4.45
2460574.033 (2024-Sep-20.533) 22.26 ± 13.82 4.73
2460575.923 (2024-Sep-22.423) 17.23 ± 0.55 4.82

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

Single lens fit parameters

tmax =JD 2459422.95 ± 0.03 UT (2021-Jul-27.45)
tE =62.06 ± 2.20 days
u0 =0.0952 ± 0.0042
Ibase =19.36 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice