MOA 2021-BLG-442

Event Parameters

Internal ID:gb1-R-8-16102
Discovery date:2021-10-20T20:51:47
RA:17:49:41.33
Dec:-34:23:51.49
Current assessment:microlensing/cv
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
138271 17:49:41.48 -34:23:55.94 18.65 ± 0.12 4.78
138364 17:49:41.27 -34:23:49.13 15.99 ± 0.04 3.05
138390 17:49:41.25 -34:23:56.22 18.66 ± 0.18 4.30
138451 17:49:41.17 -34:23:52.06 18.55 ± 0.12 1.46
138509 17:49:41.04 -34:23:55.12 18.36 ± 0.14 4.41
138592 17:49:40.90 -34:23:51.03 16.66 ± 0.06 4.95

Last 5 photometry measurements

Observation dateI magseeing
2460245.923 (2023-Oct-28.423) 18.51 ± 0.21 3.36
2460245.937 (2023-Oct-28.437) 18.41 ± 0.28 3.90
2460246.859 (2023-Oct-29.359) 18.50 ± 0.20 3.71
2460246.892 (2023-Oct-29.392) 18.46 ± 0.20 3.60
2460246.926 (2023-Oct-29.426) 18.85 ± 0.34 3.51

Calibration: I = 27.40 - 2.5 log10(ΔF + 3464.18)

Single lens fit parameters

tmax =JD 2459507.66 ± 0.02 UT (2021-Oct-20.16)
tE =0.47 ± 1.16 days
u0 =7.1406 ± 5.4510
Ibase =8.73 ± 0.20

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice