GuentherWuchterl: Die Seite wurde neu angelegt: „The Sun reflecting in the es_Montsec Lightmeter on the roof of the COU during the May 2016 COST-LoNNe campaign. G. Wuchterl = Montsec Lightmeters = Lightmeters controlled by a lightrouter run at the [http://www.parcastronomic.cat/ Parc Astronòmic Montsec (PAM)] at the ''serra del Montsec''. Stations details coming soon. ==''es_montsec'' at the Centre d'Observació de l'…“

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Die Seite wurde neu angelegt: „thumbnail|The Sun reflecting in the es_Montsec Lightmeter on the roof of the COU during the May 2016 COST-LoNNe campaign. G. Wuchterl = Montsec Lightmeters = Lightmeters controlled by a lightrouter run at the [http://www.parcastronomic.cat/ Parc Astronòmic Montsec (PAM)] at the ''serra del Montsec''. Stations details coming soon. ==''es_montsec'' at the Centre d'Observació de l'…“

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[[File:Sun-reflecting-in es montsec during-May2016-COST-campaign.jpg|thumbnail|The Sun reflecting in the es_Montsec Lightmeter on the roof of the COU during the May 2016 COST-LoNNe campaign. G. Wuchterl]]

= Montsec Lightmeters =

Lightmeters controlled by a lightrouter run at the [http://www.parcastronomic.cat/ Parc Astronòmic Montsec (PAM)] at the ''serra del Montsec''.

Stations details coming soon.

==''es_montsec'' at the Centre d'Observació de l'Univers (COU) ==

[[File:Es montsec during-May2016-COST-campaign.jpg|thumbnail|The es_montsec Lightmeter on the roof of the COU during the intercomparison campaign. Guest lightmeters in the background. G. Wuchterl]]

Coordinates: 0:44:12.6 E, 42:01:28.8.0 N , 450 m
Running since 2014-07-16 11:48:04
Sensor ID: 918076

The lightmeter is installed on an approximately 50 cm high stone wall running around the roof of the COU and thus about 4m above the ground on the northern end of the COU main building.

The (dark) planetarium dome is about 20m to the S in its "closed" position and about 5m to the S in the opened position.

Some reflected light may be present due to the nearby white housings SQMs, at least during the COST campaign in May 2016.

The cielometer, a 1.5m high blue box is about 6m to the W. It should cast shadows on the lightmeter in the late afternoons a few days before the vernal equinox and after the autumn equinox.

[http://www.parcastronomic.cat/#!cou/cr1x Centre d'Observació de l'Univers (COU)]

==''es_montsecb'' at the Observatori Astronòmic del Montsec (OAdM)==

[[File:ES montsecb lightmeter May2016.jpg|thumbnail|The Lightmeter (on the outrigger at the lower centre) at the Montsec Observatoriy near Àger]]

The lightmeter is installed on an approximately 2m arm to avoid shadows and reflections from the rich instrumnentation on roof of the "environmental" container.

Maintenance visit during the COST-LoNNe inter-comparison campaign. Shielded USB-Ethernet extension cable installed after unstable USB-connection was diagnosed. The lightmeter is back up an running since 11:52 UTC on May 5th 2016.

Coordinates
0° 43' 47,3"E, 42° 03' 06,8"N Elevation 1560 m (from OSM Hike and Bike)

[http://www.parcastronomic.cat/#!oam/c5wd Observatori Astronòmic del Montsec (OAdM)]

===Calibration===

TBD: weather data for campaign needed.

====Preliminary Calibration====

Rohdaten:

In [301]: SJD1=(X.JD > mx.DateTime.DateTime(2016,5,5,11,52,0).jdn ) & (X.JD < mx.DateTime.DateTime(2016,5,6,0,0,0).jdn )
In [302]: SSH=(X.Sunheight_deg_from_JD(X.JD)>30.0)|((X.Sunheight_deg_from_JD(X.JD)<-4)&(X.Sunheight_deg_from_JD(X.JD)>-18))
In [303]: SJD= SJD1 & SSH

kali_2_r=X.fit_em1_to_natLight(Lux_range=[0.0001, 2.E5], type='em1c0T',JD_select=SJD, time_correction_seconds=0)
Fit: a,b,c,x0,d,: 1.680e+05,1.374e-03,1.825e-06,-3.236e-03,4.518e-03, (res2/(N-n-1))^1/2 = 0.0575 ,N=34077,n= 5

a 1.6804e+05 +/- 7.8113e+01
b 1.3738e-03 +/- 7.6956e-06
c 1.8248e-06 +/- 1.8765e-09
x0 -3.2358e-03 +/- 4.9124e-05
d 4.5179e-03 +/- 9.4022e-06

60s running mean to remove the short-frequency signal

kali_2_60=X.fit_em1_to_natLight(Lux_range=[0.0001, 2.E5], type='em1c0T',JD_select=SJD, time_correction_seconds=0)
Fit: a,b,c,x0,d,: 1.681e+05,1.376e-03,1.825e-06,-3.245e-03,4.518e-03, (res2/(N-n-1))^1/2 = 0.0567 ,N=34077,n= 5

a 1.6806e+05 +/- 7.7115e+01
b 1.3760e-03 +/- 7.6083e-06
c 1.8246e-06 +/- 1.8525e-09
x0 -3.2453e-03 +/- 4.8507e-05
d 4.5176e-03 +/- 9.2813e-06

Versuch:

SSH=(X.Sunheight_deg_from_JD(X.JD)>30.0)|((X.Sunheight_deg_from_JD(X.JD)<-4)&(X.Sunheight_deg_from_JD(X.JD)>-18))
(X.JD > mx.DateTime.DateTime(2016,5,20,10,0,0).jdn ) & (X.JD < mx.DateTime.DateTime(2016,5,21,8,30,0).jdn )
SJD = SSH & SJD2

a,b,c,x0,d= 1.740e+05,2.104e-03,1.718e-06,-1.218e-03,5.121e-03
f = 110 (+/- 5)
(res2/(N-n-1))^1/2 = 0.0782 ,N=2581,n= 5 es_montsecb 20/21.Mai 2016 mit Mond

Final calibration needs clear daytime and a stretch of moonless sky.--[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 14:39, 24 May 2016 (CEST)

== Quicklook at the data ==

Approximately daily update
http://lightdata.at.vu/

--[[User:GuentherWuchterl|GW]] ([[User talk:GuentherWuchterl|talk]]) 12:21, 24 May 2016 (CEST)

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