MOA 2021-BLG-240

Event Parameters

Internal ID:gb18-R-7-18744
Discovery date:2021-07-10T17:37:22
RA:18:13:12.50
Dec:-25:57:15.64
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
62201 18:13:12.62 -25:57:14.52 19.23 ± 0.18 2.89
62248 18:13:12.55 -25:57:19.70 15.26 ± 0.03 3.82
62305 18:13:12.42 -25:57:13.06 19.82 ± 0.18 3.34
62360 18:13:12.37 -25:57:14.32 19.57 ± 0.13 2.35
62386 18:13:12.32 -25:57:17.02 20.35 ± 0.51 2.14
62495 18:13:12.13 -25:57:14.89 17.27 ± 0.03 4.84

Last 5 photometry measurements

Observation dateI magseeing
2460244.901 (2023-Oct-27.401) 99.99 ± 99.99 3.33
2460245.862 (2023-Oct-28.362) 20.19 ± 1.35 3.46
2460245.898 (2023-Oct-28.398) 18.89 ± 0.40 3.15
2460246.861 (2023-Oct-29.361) 20.19 ± 1.26 3.73
2460246.902 (2023-Oct-29.402) 20.12 ± 1.37 3.27

Calibration: I = 27.40 - 2.5 log10(ΔF + 0.00)

Single lens fit parameters

tmax =JD 2459409.13 ± 0.06 UT (2021-Jul-13.63)
tE =33.68 ± 2.90 days
u0 =0.0775 ± 0.0089
Ibase =20.29 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice