MOA 2017-BLG-087

Event Parameters

Internal ID:gb4-R-6-44959
Discovery date:2017-03-15T16:19:57
RA:17:54:37.78
Dec:-31:50:15.89
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
138985 17:54:37.99 -31:50:19.60 16.47 ± 0.05 4.69
139068 17:54:37.73 -31:50:16.50 18.33 ± 0.13 0.08
139077 17:54:37.72 -31:50:13.24 16.74 ± 0.06 3.44
139110 17:54:37.63 -31:50:20.16 17.71 ± 0.09 4.15
139178 17:54:37.42 -31:50:18.64 19.16 ± 0.26 4.75

Last 5 photometry measurements

Observation dateI magseeing
2460611.899 (2024-Oct-28.399) 18.44 ± 0.22 4.77
2460611.911 (2024-Oct-28.411) 17.94 ± 0.17 4.91
2460611.921 (2024-Oct-28.421) 19.74 ± 1.17 5.16
2460611.930 (2024-Oct-28.430) 18.70 ± 0.27 4.65
2460614.875 (2024-Oct-31.375) 19.95 ± 1.21 5.15

Calibration: I = 27.40 - 2.5 log10(ΔF + 4261.87)

Single lens fit parameters

tmax =JD 2457826.38 ± 0.12 UT (2017-Mar-13.88)
tE =8.35 ± 0.75 days
u0 =0.1923 ± 0.0242
Ibase =18.52 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice