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
2460246.887 (2023-Oct-29.387) 22.04 ± 9.58 3.44
2460246.898 (2023-Oct-29.398) 99.99 ± 99.99 3.11
2460246.909 (2023-Oct-29.409) 22.42 ± 15.96 3.39
2460246.920 (2023-Oct-29.420) 99.99 ± 99.99 3.63
2460246.929 (2023-Oct-29.429) 99.99 ± 99.99 3.63

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