MOA 2022-BLG-309

Event Parameters

Internal ID:gb4-R-3-85976
Discovery date:2022-06-18T10:34:10
RA:17:52:05.05
Dec:-31:01:08.87
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
27348 17:52:04.80 -31:01:06.61 17.42 ± 0.09 4.31
27441 17:52:05.01 -31:01:10.08 16.60 ± 0.08 2.17
27485 17:52:05.09 -31:01:07.83 16.90 ± 0.07 0.47
27572 17:52:05.37 -31:01:10.03 16.69 ± 0.07 4.06
27573 17:52:05.33 -31:01:05.65 16.41 ± 0.13 4.21

Last 5 photometry measurements

Observation dateI magseeing
2460537.087 (2024-Aug-14.587) 16.87 ± 0.15 4.53
2460537.102 (2024-Aug-14.602) 16.43 ± 0.15 4.53
2460537.114 (2024-Aug-14.614) 17.19 ± 0.41 4.82
2460537.124 (2024-Aug-14.624) 15.71 ± 0.33 5.95
2460537.134 (2024-Aug-14.634) 17.76 ± 1.02 4.99

Calibration: I = 27.40 - 2.5 log10(ΔF + 15819.76)

Single lens fit parameters

tmax =JD 2459764.44 ± 0.17 UT (2022-Jul-3.94)
tE =39.14 ± 2.71 days
u0 =0.6830 ± 0.0663
Ibase =17.84 ± 0.25

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice