MOA 2022-BLG-490

Event Parameters

Internal ID:gb14-R-6-50772
Discovery date:2022-09-09T19:32:33
RA:18:08:51.19
Dec:-28:04:44.05
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
6321 18:08:51.46 -28:04:44.20 17.36 ± 0.05 4.34
6368 18:08:51.36 -28:04:46.87 18.27 ± 0.12 3.81
6445 18:08:51.27 -28:04:48.52 17.13 ± 0.07 4.47
6492 18:08:51.13 -28:04:45.53 17.52 ± 0.12 0.95
6589 18:08:51.00 -28:04:41.96 17.22 ± 0.11 3.48
6636 18:08:50.91 -28:04:44.40 18.04 ± 0.13 3.29

Last 5 photometry measurements

Observation dateI magseeing
2460246.855 (2023-Oct-29.355) 17.31 ± 0.13 3.68
2460246.889 (2023-Oct-29.389) 17.45 ± 0.17 3.76
2460246.901 (2023-Oct-29.401) 17.64 ± 0.17 3.10
2460246.911 (2023-Oct-29.411) 16.60 ± 0.08 3.64
2460246.923 (2023-Oct-29.423) 16.25 ± 0.07 3.96

Calibration: I = 27.40 - 2.5 log10(ΔF + 8961.90)

Single lens fit parameters

tmax =JD 2459833.49 ± 0.05 UT (2022-Sep-10.99)
tE =11.00 ± 0.55 days
u0 =0.1867 ± 0.0140
Ibase =18.76 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice