MOA 2020-BLG-031

Event Parameters

Internal ID:gb10-R-4-47615
Discovery date:2020-02-29T19:34:05
RA:17:58:21.80
Dec:-27:53:10.34
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
37032 17:58:21.64 -27:53:10.91 17.10 ± 0.04 3.02
37033 17:58:21.63 -27:53:08.51 18.59 ± 0.20 3.16
37113 17:58:21.84 -27:53:09.52 16.54 ± 0.17 0.26
37237 17:58:22.04 -27:53:11.54 19.89 ± 0.33 3.27

Last 5 photometry measurements

Observation dateI magseeing
2460246.852 (2023-Oct-29.352) 16.46 ± 0.03 3.54
2460246.886 (2023-Oct-29.386) 16.52 ± 0.04 3.64
2460246.897 (2023-Oct-29.397) 16.49 ± 0.03 3.17
2460246.908 (2023-Oct-29.408) 16.53 ± 0.04 3.54
2460246.919 (2023-Oct-29.419) 16.63 ± 0.06 3.81

Calibration: I = 27.40 - 2.5 log10(ΔF + 22161.54)

Single lens fit parameters

tmax =JD 2458920.11 ± 0.00 UT (2020-Mar-11.61)
tE =10.17 ± 0.05 days
u0 =0.1600 ± 0.0010
Ibase =16.33 ± 0.21

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice