MOA 2017-BLG-446

Event Parameters

Internal ID:gb8-R-4-18216
Discovery date:2017-09-02T09:48:05
RA:17:59:44.83
Dec:-31:16:40.80
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
161193 17:59:44.75 -31:16:38.50 18.99 ± 0.20 2.40
161283 17:59:44.91 -31:16:40.07 18.56 ± 0.14 0.47
161284 17:59:44.88 -31:16:35.71 17.85 ± 0.12 4.66
161307 17:59:44.93 -31:16:43.30 16.46 ± 0.17 3.26
161363 17:59:45.02 -31:16:41.04 17.58 ± 0.06 2.07
161388 17:59:45.06 -31:16:38.74 16.05 ± 0.07 2.91
161460 17:59:45.20 -31:16:39.79 17.06 ± 0.06 4.36

Last 5 photometry measurements

Observation dateI magseeing
2460610.904 (2024-Oct-27.404) 20.25 ± 1.93 4.93
2460610.934 (2024-Oct-27.434) 18.71 ± 0.43 4.72
2460611.879 (2024-Oct-28.379) 18.78 ± 0.36 4.01
2460611.916 (2024-Oct-28.416) 99.99 ± 99.99 5.68
2460614.880 (2024-Oct-31.380) 23.05 ± 32.45 5.12

Calibration: I = 27.40 - 2.5 log10(ΔF + 3445.09)

Single lens fit parameters

tmax =JD 2458006.52 ± 0.08 UT (2017-Sep-10.02)
tE =29.99 ± 1.73 days
u0 =0.3001 ± 0.0219
Ibase =18.38 ± 0.23

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice