MOA 2017-BLG-397

Event Parameters

Internal ID:gb14-R-9-35385
Discovery date:2017-07-22T18:33:28
RA:18:07:19.88
Dec:-27:15:25.81
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
156736 18:07:20.17 -27:15:28.38 17.59 ± 0.15 5.00
156837 18:07:20.00 -27:15:25.86 17.47 ± 0.11 2.36
156945 18:07:19.81 -27:15:26.95 17.75 ± 0.15 0.70
156994 18:07:19.75 -27:15:31.04 17.76 ± 0.25 4.96
157050 18:07:19.69 -27:15:24.20 18.43 ± 0.15 3.06
157071 18:07:19.58 -27:15:22.94 17.29 ± 0.07 4.99
157072 18:07:19.56 -27:15:28.02 19.14 ± 0.23 4.14

Last 5 photometry measurements

Observation dateI magseeing
2460246.855 (2023-Oct-29.355) 17.78 ± 0.12 3.28
2460246.889 (2023-Oct-29.389) 17.82 ± 0.13 3.66
2460246.901 (2023-Oct-29.401) 17.59 ± 0.10 2.89
2460246.911 (2023-Oct-29.411) 17.71 ± 0.15 3.55
2460246.923 (2023-Oct-29.423) 17.75 ± 0.21 3.81

Calibration: I = 27.40 - 2.5 log10(ΔF + 7271.10)

Single lens fit parameters

tmax =JD 2457961.47 ± 0.00 UT (2017-Jul-26.97)
tE =12.67 ± 0.28 days
u0 =0.1126 ± 0.0042
Ibase =18.65 ± 0.23

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice