MOA 2021-BLG-448

Event Parameters

Internal ID:gb4-R-3-83278
Discovery date:2021-10-20T20:52:10
RA:17:51:51.15
Dec:-30:58:21.96
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
98444 17:51:50.90 -30:58:20.33 17.69 ± 0.07 4.15
98473 17:51:50.99 -30:58:24.07 19.26 ± 0.24 3.94
98494 17:51:51.03 -30:58:21.12 18.02 ± 0.10 2.27
98529 17:51:51.11 -30:58:20.29 18.10 ± 0.13 1.64
98591 17:51:51.24 -30:58:24.07 18.29 ± 0.11 2.86
98639 17:51:51.37 -30:58:24.72 17.59 ± 0.10 4.20

Last 5 photometry measurements

Observation dateI magseeing
2460572.944 (2024-Sep-19.444) 99.99 ± 99.99 4.06
2460572.954 (2024-Sep-19.454) 22.21 ± 5.88 3.54
2460572.966 (2024-Sep-19.466) 17.92 ± 3.36 4.85
2460574.031 (2024-Sep-20.531) 19.84 ± 1.39 4.79
2460575.919 (2024-Sep-22.419) 18.67 ± 0.67 4.53

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

Single lens fit parameters

tmax =JD 2459507.19 ± 0.03 UT (2021-Oct-19.69)
tE =5.46 ± 0.72 days
u0 =0.2023 ± 0.0352
Ibase =18.35 ± 0.21

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice