MOA 2020-BLG-138

Event Parameters

Internal ID:gb9-R-4-83976
Discovery date:2020-07-09T12:57:27
RA:17:58:41.97
Dec:-29:45:21.76
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
50779 17:58:41.67 -29:45:19.59 18.21 ± 0.12 4.85
50857 17:58:41.79 -29:45:20.49 18.20 ± 0.20 3.08
50959 17:58:42.04 -29:45:21.27 18.68 ± 0.24 0.41
50985 17:58:42.09 -29:45:25.42 15.20 ± 0.05 4.52
51014 17:58:42.14 -29:45:18.45 18.62 ± 0.17 3.35
51068 17:58:42.28 -29:45:23.89 17.17 ± 0.12 4.53
51069 17:58:42.26 -29:45:20.44 18.72 ± 0.27 3.38
51119 17:58:42.34 -29:45:20.79 19.06 ± 0.42 4.49

Last 5 photometry measurements

Observation dateI magseeing
2460246.884 (2023-Oct-29.384) 18.62 ± 0.29 3.41
2460246.896 (2023-Oct-29.396) 18.31 ± 0.22 3.10
2460246.906 (2023-Oct-29.406) 18.79 ± 0.35 3.30
2460246.918 (2023-Oct-29.418) 19.01 ± 0.60 3.38
2460246.927 (2023-Oct-29.427) 18.90 ± 0.52 3.46

Calibration: I = 27.40 - 2.5 log10(ΔF + 3073.26)

Single lens fit parameters

tmax =JD 2459041.45 ± 0.01 UT (2020-Jul-10.95)
tE =16.93 ± 1.04 days
u0 =0.0386 ± 0.0029
Ibase =19.87 ± 0.29

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice