MOA 2021-BLG-317

Event Parameters

Internal ID:gb4-R-1-185168
Discovery date:2021-08-09T13:07:52
RA:17:51:42.27
Dec:-30:22:19.81
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
12598 17:51:41.99 -30:22:17.39 16.58 ± 0.03 4.86
12642 17:51:42.15 -30:22:18.81 17.83 ± 0.06 2.34
12643 17:51:42.13 -30:22:15.58 17.27 ± 0.06 4.65
12667 17:51:42.20 -30:22:21.04 18.39 ± 0.09 2.48
12770 17:51:42.54 -30:22:16.58 18.05 ± 0.09 4.07

Last 5 photometry measurements

Observation dateI magseeing
2460246.887 (2023-Oct-29.387) 99.99 ± 99.99 3.81
2460246.898 (2023-Oct-29.398) 99.99 ± 99.99 3.61
2460246.909 (2023-Oct-29.409) 99.99 ± 99.99 3.85
2460246.920 (2023-Oct-29.420) 99.99 ± 99.99 4.15
2460246.929 (2023-Oct-29.429) 99.99 ± 99.99 3.99

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

Single lens fit parameters

tmax =JD 2459436.40 ± 0.02 UT (2021-Aug-9.90)
tE =3.79 ± 0.34 days
u0 =0.2349 ± 0.0369
Ibase =18.70 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice