MOA 2022-BLG-398

Event Parameters

Internal ID:gb12-R-3-6825
Discovery date:2022-07-21T11:59:20
RA:18:03:44.95
Dec:-30:58:57.58
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
118684 18:03:44.73 -30:58:56.14 17.79 ± 0.06 3.64
118727 18:03:44.85 -30:58:52.98 19.20 ± 0.21 4.55
118751 18:03:44.88 -30:59:00.23 18.10 ± 0.07 3.67
118808 18:03:45.02 -30:58:57.30 18.00 ± 0.13 0.46
118896 18:03:45.20 -30:59:00.93 17.70 ± 0.06 4.90
118897 18:03:45.19 -30:58:53.21 16.41 ± 0.04 4.73
118939 18:03:45.27 -30:58:58.64 19.39 ± 0.18 4.10

Last 5 photometry measurements

Observation dateI magseeing
2460244.915 (2023-Oct-27.415) 17.78 ± 0.19 4.19
2460245.869 (2023-Oct-28.369) 17.60 ± 0.08 3.17
2460245.912 (2023-Oct-28.412) 17.85 ± 0.16 3.30
2460246.868 (2023-Oct-29.368) 17.95 ± 0.14 3.49
2460246.916 (2023-Oct-29.416) 18.05 ± 0.20 3.25

Calibration: I = 27.40 - 2.5 log10(ΔF + 5743.81)

Single lens fit parameters

tmax =JD 2459786.13 ± 0.00 UT (2022-Jul-25.63)
tE =27.35 ± 1.12 days
u0 =0.0113 ± 0.0021
Ibase =19.70 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice