MOA 2018-BLG-258

Event Parameters

Internal ID:gb15-R-3-7549
Discovery date:2018-07-17T14:38:03
RA:18:05:57.08
Dec:-25:44:19.02
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
123124 18:05:56.90 -25:44:21.61 19.16 ± 0.12 4.54
123239 18:05:57.08 -25:44:17.22 19.18 ± 0.10 1.38
123264 18:05:57.16 -25:44:13.91 16.68 ± 0.07 4.68
123362 18:05:57.30 -25:44:18.88 19.71 ± 0.17 2.57
123389 18:05:57.36 -25:44:21.20 20.41 ± 0.29 4.34
123412 18:05:57.39 -25:44:15.57 18.26 ± 0.15 4.70

Last 5 photometry measurements

Observation dateI magseeing
2460244.911 (2023-Oct-27.411) 18.93 ± 0.29 3.57
2460245.866 (2023-Oct-28.366) 19.00 ± 0.40 3.22
2460245.909 (2023-Oct-28.409) 19.91 ± 1.15 3.26
2460246.865 (2023-Oct-29.365) 19.34 ± 0.74 3.44
2460246.912 (2023-Oct-29.412) 18.90 ± 0.70 3.56

Calibration: I = 27.40 - 2.5 log10(ΔF + 1948.05)

Single lens fit parameters

tmax =JD 2458317.16 ± 0.00 UT (2018-Jul-17.66)
tE =108.96 ± 74.03 days
u0 =0.0016 ± 0.0034
Ibase =24.22 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice