MOA 2022-BLG-421

Event Parameters

Internal ID:gb14-R-7-125513
Discovery date:2022-07-27T10:48:55
RA:18:08:59.94
Dec:-27:58:35.12
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
109560 18:09:00.12 -27:58:32.75 17.59 ± 0.10 4.41
109561 18:09:00.10 -27:58:35.61 15.69 ± 0.02 2.91
109585 18:09:00.08 -27:58:39.20 19.21 ± 0.24 4.51
109687 18:08:59.87 -27:58:33.16 18.35 ± 0.08 2.68
109709 18:08:59.90 -27:58:36.30 18.27 ± 0.16 0.63
109777 18:08:59.69 -27:58:37.02 18.20 ± 0.09 3.07

Last 5 photometry measurements

Observation dateI magseeing
2460246.855 (2023-Oct-29.355) 17.76 ± 0.19 3.61
2460246.889 (2023-Oct-29.389) 17.59 ± 0.17 3.65
2460246.901 (2023-Oct-29.401) 17.98 ± 0.21 3.10
2460246.911 (2023-Oct-29.411) 17.72 ± 0.20 3.51
2460246.923 (2023-Oct-29.423) 17.98 ± 0.30 3.90

Calibration: I = 27.40 - 2.5 log10(ΔF + 4475.07)

Single lens fit parameters

tmax =JD 2459795.45 ± 0.04 UT (2022-Aug-3.95)
tE =18.39 ± 0.78 days
u0 =0.2962 ± 0.0222
Ibase =18.20 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice