MOA 2021-BLG-022

Event Parameters

Internal ID:gb18-R-8-13037
Discovery date:2021-03-12T21:31:47
RA:18:12:19.17
Dec:-25:47:40.82
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
186637 18:12:19.42 -25:47:39.29 19.00 ± 0.16 4.72
186718 18:12:19.29 -25:47:38.30 19.44 ± 0.12 3.96
186801 18:12:19.16 -25:47:38.00 19.58 ± 0.12 3.56
186802 18:12:19.16 -25:47:45.71 17.90 ± 0.15 4.46
186820 18:12:19.13 -25:47:41.12 18.58 ± 0.11 0.32
186879 18:12:18.99 -25:47:44.49 19.05 ± 0.16 3.67
186994 18:12:18.83 -25:47:40.06 16.99 ± 0.20 4.32

Last 5 photometry measurements

Observation dateI magseeing
2460244.901 (2023-Oct-27.401) 18.70 ± 0.18 3.50
2460245.862 (2023-Oct-28.362) 18.82 ± 0.27 3.55
2460245.898 (2023-Oct-28.398) 18.43 ± 0.15 3.19
2460246.861 (2023-Oct-29.361) 18.64 ± 0.22 3.94
2460246.902 (2023-Oct-29.402) 18.69 ± 0.21 3.37

Calibration: I = 27.40 - 2.5 log10(ΔF + 3375.98)

Single lens fit parameters

tmax =JD 2459280.85 ± 0.25 UT (2021-Mar-7.35)
tE =104.45 ± 3.71 days
u0 =0.2174 ± 0.0114
Ibase =19.13 ± 0.18

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice