MOA 2023-BLG-257

Event Parameters

Internal ID:gb5-R-10-162127
Discovery date:2023-06-10T12:54:22
RA:17:55:15.16
Dec:-28:36:42.88
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
100063 17:55:15.31 -28:36:41.24 17.10 ± 0.06 3.58
100080 17:55:15.28 -28:36:42.84 16.71 ± 0.04 2.40
100129 17:55:15.15 -28:36:39.94 16.15 ± 0.11 3.74
100167 17:55:15.11 -28:36:46.66 19.25 ± 0.31 3.36
100220 17:55:14.96 -28:36:42.32 18.30 ± 0.12 2.45

Last 5 photometry measurements

Observation dateI magseeing
2460611.893 (2024-Oct-28.393) 19.89 ± 0.78 4.67
2460611.907 (2024-Oct-28.407) 20.51 ± 2.08 5.12
2460614.862 (2024-Oct-31.362) 99.99 ± 99.99 5.57
2460614.868 (2024-Oct-31.368) 99.99 ± 99.99 5.25
2460614.872 (2024-Oct-31.372) 99.99 ± 99.99 4.88

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

Single lens fit parameters

tmax =JD 2460107.01 ± 0.00 UT (2023-Jun-11.51)
tE =7.40 ± 0.20 days
u0 =0.0337 ± 0.0010
Ibase =19.20 ± 0.19

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice