Night Report 2015-02-18

Observers : Laurent Le Guillou, Sylvain Baumont, Ayan Mitra

Support team : Nicolas Chotard, Pierre-François Leget

TAT : L. Galbany, M. Fraser

We did only follow-up observations with EFOSC.

Clear sky, stable wind 5m/s, 70% to 30% humidity.

Photometric night.

(times are in UT)

CALIBRATIONS :

- Evening : EFOSC_bias, EFOSC_FlatSpec, EFOSC_SpecArc

- 23:50 : EFOSC_SkyFlat grz

- Morning : EFOSC_SkyFlat UBVRi

SCIENCE OBSERVATIONS :

--- EFOSC ---

- 00:25 SN2013hx Follow-up, 15x200s i dithered

Bright sky background, airmass 1.55-1.85, seeing 0.8-1".

- 01:35 image analysis

- 01:50 Photometric Standard Field RU152, UBVRigrz

59% humidity, temperature 12.7º, airmass 1.13, seeing 1.06"

- 02:10 OGLE-2014-SN-073 Follow-up, 3x300s V, 2x250s Ri

- 02:50 Photometric Standard Field RU149, UBVRigrz

70% humidity, temperature 11.6º, airmass 1.155, seeing 1.14"

- 03:05 ASASSN-14hu Follow-up, 3x2700s Gr13

- 05:28 STD L745a, Gr11 Gr13 Gr16, airmass 1.37

- 05:45 PSNJ10544216-2104138 Follow-up, 2x1800s Gr11 & Gr16

- 08:00 STD LTT3864, Gr11 Gr13 Gr16, airmass 1.21

- 08:16 PSNJ14095513+1731556 Follow-up, 2x1500s Gr11 & Gr16

- 09:20 STD EG274, Gr11 Gr13 Gr16

CONCLUSIONS :

Follow-up of

* SN2013hx

* OGLE-2014-SN-073

* ASASSN-14hu

* PSNJ10544216-2104138

* PSNJ14095513+1731556