MOA 2023-BLG-400

Event Parameters

Internal ID:gb21-R-9-6147
Discovery date:2023-08-25T21:56:17
RA:18:18:55.77
Dec:-21:47:09.75
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
146133 18:18:55.90 -21:47:09.23 18.34 ± 0.11 2.64
146185 18:18:55.82 -21:47:12.15 16.69 ± 0.06 2.29
146210 18:18:55.79 -21:47:14.92 20.24 ± 0.18 4.80
146231 18:18:55.74 -21:47:05.81 18.35 ± 0.06 4.69
146315 18:18:55.58 -21:47:08.32 16.43 ± 0.07 3.01
146372 18:18:55.47 -21:47:10.83 15.16 ± 0.07 3.78

Last 5 photometry measurements

Observation dateI magseeing
2460237.941 (2023-Oct-20.441) 18.80 ± 0.72 3.48
2460239.941 (2023-Oct-22.441) 19.87 ± 1.14 3.65
2460244.875 (2023-Oct-27.375) 21.34 ± 3.29 3.88
2460245.870 (2023-Oct-28.370) 20.37 ± 1.19 3.03
2460246.869 (2023-Oct-29.369) 22.11 ± 6.16 3.41

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

Single lens fit parameters

tmax =JD 2460186.85 ± 0.09 UT (2023-Aug-30.35)
tE =38.09 ± 4.26 days
u0 =0.1609 ± 0.0278
Ibase =19.17 ± 0.14

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice