MOA 2019-BLG-171

Event Parameters

Internal ID:gb17-R-2-18426
Discovery date:2019-04-22T13:01:01
RA:18:11:14.81
Dec:-27:12:18.36
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
41898 18:11:14.57 -27:12:16.57 16.51 ± 0.05 4.12
41980 18:11:14.78 -27:12:19.49 18.43 ± 0.08 2.05
42000 18:11:14.85 -27:12:17.84 17.85 ± 0.06 0.08
42001 18:11:14.84 -27:12:14.58 17.93 ± 0.13 3.31
42076 18:11:15.02 -27:12:18.63 18.30 ± 0.11 2.56
42077 18:11:15.04 -27:12:16.75 18.11 ± 0.15 2.86

Last 5 photometry measurements

Observation dateI magseeing
2460570.962 (2024-Sep-17.462) 17.72 ± 0.05 3.41
2460571.002 (2024-Sep-17.502) 17.85 ± 0.10 4.27
2460571.035 (2024-Sep-17.535) 17.80 ± 0.13 4.23
2460572.901 (2024-Sep-19.401) 17.65 ± 0.04 3.91
2460572.948 (2024-Sep-19.448) 17.62 ± 0.04 3.81

Calibration: I = 27.40 - 2.5 log10(ΔF + 6631.32)

Single lens fit parameters

tmax =JD 2458592.13 ± 0.00 UT (2019-Apr-18.63)
tE =0.03 ± 0.21 days
u0 =6.6398 ± 6.1506
Ibase =9.46 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice