MOA 2021-BLG-087

Event Parameters

Internal ID:gb1-R-8-13913
Discovery date:2021-04-19T14:32:56
RA:17:49:52.45
Dec:-34:17:05.36
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
132049 17:49:52.71 -34:17:05.98 19.54 ± 0.29 3.95
132101 17:49:52.58 -34:17:03.17 17.17 ± 0.07 3.71
132102 17:49:52.61 -34:17:07.49 18.85 ± 0.21 3.15
132103 17:49:52.60 -34:17:09.87 16.67 ± 0.08 4.82
132204 17:49:52.39 -34:17:03.90 18.56 ± 0.10 2.12
132205 17:49:52.39 -34:17:06.07 17.29 ± 0.08 0.20
132370 17:49:52.10 -34:17:06.98 18.95 ± 0.14 3.98

Last 5 photometry measurements

Observation dateI magseeing
2460245.923 (2023-Oct-28.423) 17.59 ± 0.11 3.44
2460245.937 (2023-Oct-28.437) 17.17 ± 0.09 3.88
2460246.859 (2023-Oct-29.359) 17.15 ± 0.06 3.63
2460246.892 (2023-Oct-29.392) 17.24 ± 0.06 3.59
2460246.926 (2023-Oct-29.426) 17.24 ± 0.08 3.63

Calibration: I = 27.40 - 2.5 log10(ΔF + 11066.24)

Single lens fit parameters

tmax =JD 2459331.16 ± 0.00 UT (2021-Apr-26.66)
tE =27.25 ± 0.27 days
u0 =0.0216 ± 0.0002
Ibase =18.34 ± 0.20

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice