MOA 2017-BLG-238

Event Parameters

Internal ID:gb10-R-4-36586
Discovery date:2017-05-07T16:31:02
RA:17:59:38.17
Dec:-27:59:28.98
Current assessment:microlensing
A transient event found by MOA.

Lightcurve

Finder chart

Nearest catalogued stars

starIDRADecmagseparation
80010 17:59:37.93 -27:59:29.59 17.93 ± 0.24 4.05
80090 17:59:38.08 -27:59:32.31 16.61 ± 0.10 4.48
80091 17:59:38.09 -27:59:26.40 14.40 ± 0.04 2.68
80138 17:59:38.18 -27:59:30.43 19.62 ± 0.31 2.16
80169 17:59:38.24 -27:59:24.14 15.43 ± 0.09 4.43
80215 17:59:38.31 -27:59:30.92 19.64 ± 0.30 2.91
80216 17:59:38.31 -27:59:28.54 18.16 ± 0.16 1.31
80307 17:59:38.43 -27:59:29.61 17.25 ± 0.09 3.16
80308 17:59:38.46 -27:59:27.05 19.10 ± 0.23 3.65
80387 17:59:38.58 -27:59:27.96 17.80 ± 0.19 4.97

Last 5 photometry measurements

Observation dateI magseeing
2460246.852 (2023-Oct-29.352) 18.26 ± 0.26 3.47
2460246.886 (2023-Oct-29.386) 17.67 ± 0.13 3.58
2460246.897 (2023-Oct-29.397) 17.92 ± 0.19 3.11
2460246.908 (2023-Oct-29.408) 17.32 ± 0.17 3.85
2460246.919 (2023-Oct-29.419) 17.32 ± 0.17 3.94

Calibration: I = 27.40 - 2.5 log10(ΔF + 4984.25)

Single lens fit parameters

tmax =JD 2457883.28 ± 0.02 UT (2017-May-9.78)
tE =0.58 ± 1.12 days
u0 =9.7377 ± 6.6444
Ibase =8.97 ± 0.31

External data

Gzipped FITS finder chart

All photometry data

Machine readable VOEvent notice