MOA 2023-BLG-227

Event Parameters

Internal ID:gb3-R-5-53703
Discovery date:2023-06-06T15:49:18
RA:17:53:39.79
Dec:-33:28:19.89
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
54158 17:53:39.67 -33:28:22.28 19.58 ± 0.24 3.80
54173 17:53:39.67 -33:28:16.12 17.03 ± 0.05 3.98
54245 17:53:39.85 -33:28:18.19 16.87 ± 0.07 1.21
54256 17:53:39.92 -33:28:21.36 17.15 ± 0.04 2.43
54314 17:53:40.07 -33:28:17.32 18.27 ± 0.13 3.78
54352 17:53:40.12 -33:28:21.95 18.72 ± 0.09 4.65

Last 5 photometry measurements

Observation dateI magseeing
2460246.899 (2023-Oct-29.399) 16.69 ± 0.03 3.09
2460246.910 (2023-Oct-29.410) 16.72 ± 0.03 3.30
2460246.922 (2023-Oct-29.422) 16.72 ± 0.04 3.70
2460246.930 (2023-Oct-29.430) 16.74 ± 0.05 3.52
2460246.933 (2023-Oct-29.433) 16.67 ± 0.04 3.67

Calibration: I = 27.40 - 2.5 log10(ΔF + 16338.04)

Single lens fit parameters

tmax =JD 2460162.28 ± 0.01 UT (2023-Aug-5.78)
tE =185.52 ± 0.88 days
u0 =0.0428 ± 0.0002
Ibase =18.80 ± 0.15

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice