MOA 2017-BLG-222

Event Parameters

Internal ID:gb4-R-2-87789
Discovery date:2017-05-04T21:28:51
RA:17:53:15.11
Dec:-30:32:30.66
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
83067 17:53:15.05 -30:32:27.31 13.67 ± 0.03 3.17
83113 17:53:15.20 -30:32:33.15 16.49 ± 0.06 3.26
83148 17:53:15.25 -30:32:27.73 16.26 ± 0.03 2.73
83149 17:53:15.27 -30:32:25.49 17.90 ± 0.11 4.99

Last 5 photometry measurements

Observation dateI magseeing
2460246.887 (2023-Oct-29.387) 99.99 ± 99.99 3.46
2460246.898 (2023-Oct-29.398) 99.99 ± 99.99 3.19
2460246.909 (2023-Oct-29.409) 99.99 ± 99.99 3.48
2460246.920 (2023-Oct-29.420) 99.99 ± 99.99 3.60
2460246.929 (2023-Oct-29.429) 99.99 ± 99.99 3.68

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

Single lens fit parameters

tmax =JD 2457877.21 ± 0.02 UT (2017-May-3.71)
tE =58.01 ± 1.66 days
u0 =0.0793 ± 0.0030
Ibase =18.92 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice