MOA 2021-BLG-227

Event Parameters

Internal ID:gb4-R-7-79812
Discovery date:2021-07-07T14:44:15
RA:17:56:41.95
Dec:-31:26:31.81
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
100072 17:56:41.90 -31:26:31.84 14.58 ± 0.04 0.60
100091 17:56:41.82 -31:26:28.19 15.49 ± 0.04 4.55

Last 5 photometry measurements

Observation dateI magseeing
2460611.899 (2024-Oct-28.399) 14.61 ± 0.01 4.60
2460611.911 (2024-Oct-28.411) 14.63 ± 0.02 4.86
2460611.921 (2024-Oct-28.421) 14.68 ± 0.02 5.15
2460611.930 (2024-Oct-28.430) 14.60 ± 0.01 4.55
2460614.875 (2024-Oct-31.375) 14.65 ± 0.02 5.09

Calibration: I = 27.40 - 2.5 log10(ΔF + 133782.71)

Single lens fit parameters

tmax =JD 2459414.40 ± 0.00 UT (2021-Jul-18.90)
tE =6.39 ± 0.01 days
u0 =0.0000 ± 0.0006
Ibase =14.02 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice