MOA 2017-BLG-458

Event Parameters

Internal ID:gb20-R-1-11364
Discovery date:2017-09-04T01:03:25
RA:18:17:43.04
Dec:-23:08:41.57
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
70606 18:17:42.88 -23:08:43.36 17.64 ± 0.10 3.81
70607 18:17:42.91 -23:08:39.81 17.95 ± 0.07 2.79
70683 18:17:43.07 -23:08:41.21 17.63 ± 0.06 0.30
70711 18:17:43.11 -23:08:37.98 17.96 ± 0.05 3.18
70796 18:17:43.29 -23:08:42.77 18.27 ± 0.04 3.46
70816 18:17:43.31 -23:08:38.03 19.39 ± 0.09 4.49

Last 5 photometry measurements

Observation dateI magseeing
2460239.942 (2023-Oct-22.442) 17.50 ± 0.08 3.70
2460244.877 (2023-Oct-27.377) 17.56 ± 0.11 4.52
2460245.871 (2023-Oct-28.371) 17.61 ± 0.06 3.58
2460246.850 (2023-Oct-29.350) 17.66 ± 0.11 3.73
2460246.871 (2023-Oct-29.371) 17.59 ± 0.06 3.65

Calibration: I = 27.40 - 2.5 log10(ΔF + 8113.35)

Single lens fit parameters

tmax =JD 2458000.69 ± 0.01 UT (2017-Sep-4.19)
tE =14.33 ± 0.39 days
u0 =0.0769 ± 0.0033
Ibase =18.53 ± 0.15

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice