MOA 2022-BLG-397

Event Parameters

Internal ID:gb7-R-5-39406
Discovery date:2022-07-21T09:11:36
RA:17:58:30.24
Dec:-33:31:38.23
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
37515 17:58:30.08 -33:31:34.63 17.37 ± 0.05 4.15
37547 17:58:30.16 -33:31:37.39 17.84 ± 0.07 1.64
37567 17:58:30.21 -33:31:41.50 18.55 ± 0.07 4.22
37635 17:58:30.43 -33:31:39.68 18.12 ± 0.05 2.83
37728 17:58:30.61 -33:31:37.65 18.72 ± 0.09 4.26

Last 5 photometry measurements

Observation dateI magseeing
2460245.911 (2023-Oct-28.411) 99.99 ± 99.99 3.50
2460245.940 (2023-Oct-28.440) 19.51 ± 0.81 3.71
2460246.867 (2023-Oct-29.367) 99.99 ± 99.99 3.64
2460246.915 (2023-Oct-29.415) 19.27 ± 0.45 3.49
2460246.938 (2023-Oct-29.438) 18.48 ± 0.34 4.05

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

Single lens fit parameters

tmax =JD 2459785.36 ± 0.02 UT (2022-Jul-24.86)
tE =70.82 ± 3.80 days
u0 =0.0256 ± 0.0016
Ibase =20.33 ± 0.17

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice