MOA 2021-BLG-438

Event Parameters

Internal ID:gb20-R-5-10266
Discovery date:2021-10-15T15:02:38
RA:18:15:51.08
Dec:-24:20:55.94
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
99709 18:15:50.92 -24:20:58.90 18.44 ± 0.06 4.75
99745 18:15:51.02 -24:20:51.11 15.76 ± 0.04 4.71
99763 18:15:51.04 -24:20:55.30 16.40 ± 0.03 1.13
99917 18:15:51.35 -24:20:56.46 18.63 ± 0.08 3.42
99935 18:15:51.44 -24:20:54.27 18.16 ± 0.05 4.64

Last 5 photometry measurements

Observation dateI magseeing
2460567.989 (2024-Sep-14.489) 16.43 ± 0.05 4.32
2460570.825 (2024-Sep-17.325) 16.39 ± 0.03 3.69
2460570.901 (2024-Sep-17.401) 16.36 ± 0.03 3.91
2460570.972 (2024-Sep-17.472) 16.40 ± 0.05 4.29
2460572.926 (2024-Sep-19.426) 16.34 ± 0.03 4.41

Calibration: I = 27.40 - 2.5 log10(ΔF + 25142.01)

Single lens fit parameters

tmax =JD 2459502.81 ± 0.11 UT (2021-Oct-15.31)
tE =39.12 ± 4.94 days
u0 =0.0796 ± 0.0143
Ibase =19.70 ± 0.11

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice