MegaPrime/MegaCam calendar: QSO observing & Elixir run IDs
A QSO Run Identificator (ID) covers a contiguous set of observing nights. However an observing run can be cut into two QSO run IDs if it happens to fall on a semester boundary: semester A goes from Feb. 1 to Jul. 31 and the semester B goes from Aug. 1 to Jan. 31.

An Elixir Run ID has a different purpose: it is meant to track a given instrumental setup within a contiguous set of observing nights. It is not affected by the semester boundary. If there are changes within an observing run imposing the creation of a various set of master frames, Elixir has the internal logic to assign specific master detrending frames to given sub-periods of the observing run. With the arrival of WIRCAM in the pool of instruments ran by QSO, the QSO run IDs are now shared and MegaPrime run IDs won't be sequential as of the start of 2005B, but the Elixir run IDs (specific to MegaPrime) will continue being sequential.

As a result, it is common that a QSO Run ID (e.g. 03BQ02) does not match the Elixir Run ID (e.g. 03Bm01) for a given set of observations.

All times in these tables are in Hawaiian standard time (HST). The observing runs dates go from the start of the first night (evening HST) to the end of the last night (morning HST).

Semester 2013B
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
23 Jan. - 04 Feb.1213BQ1313Bm07Normal instrumental setup 01 Feb.
27 Dec. - 07 Jan.1113BQ1113Bm06Normal instrumental setup 02 Jan.
26 Nov. - 06 Dec.1013BQ0913Bm05Normal instrumental setup 02 Dec.
28 Oct. - 08 Nov.1113BQ0713Bm04Normal instrumental setup 03 Nov.
27 Sep. - 09 Oct.1213BQ1313Bm03Normal instrumental setup 03 Oct.
29 Aug. - 11 Sep.1313BQ0313Bm02Normal instrumental setup 04 Sep.
29 Jul. - 12 Aug.1413BQ0113Bm01Normal instrumental setup 06 Aug.
Semester 2013A
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
01 Jul. - 15 Jul.1413AQ1113Am06Normal instrumental setup 07 Jul.
31 May - 14 Jun.1413AQ0913Am05Normal instrumental setup 07 Jun.
01 May - 15 May 1413AQ0713Am04Normal instrumental setup08 May
01 Apr. - 19 Apr.1813AQ0513Am03Normal instrumental setup09 Apr.
04 Mar. - 19 Mar.1513AQ0313Am02Normal instrumental setup12 Mar.
29 Jan. - 19 Feb.2113AQ0113Am01Normal instrumental setup09 Feb.
Semester 2012B
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
03 Jan. - 22 Jan.1912BQ1212Bm05Normal instrumental setup11 Jan.
13 Nov. - 21 Nov.0812BQ0912Bm04Normal instrumental setup13 Nov.
15 Oct. - 25 Oct.1012BQ0712Bm03Normal instrumental setup14 Oct.
07 Sep. - 24 Sep.1712BQ0412Bm02Normal instrumental setup15 Sep.
14 Aug. - 28 Aug.1412BQ0212Bm01Normal instrumental setup16 Aug.
Semester 2012A
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
09 Jul. - 26 Jul.1712AQ1112Am06Normal instrumental setup18 Jul.
08 Jun. - 20 Jun.1212AQ0912Am05Dome out of service 18 Jun.
14 May - 29 May 1512AQ0812Am04Dome out of service 19 May
13 Apr. - 27 Apr.1412AQ0612Am03Dome out of service 20 Apr.
14 Mar. - 30 Mar.1612AQ0412Am02Normal instrumental setup21 Mar.
14 Feb. - 29 Feb.1512AQ0212Am01Normal instrumental setup20 Feb.
Semester 2011B
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
24 Jan. - 30 Jan.0711BQ1411Bm04Normal instrumental setup22 Jan.
23 Nov. - 01 Dec.0811BQ0811Bm03Normal instrumental setup24 Nov.
20 Oct. - 31 Oct.1111BQ0611Bm02Normal instrumental setup25 Oct.
28 Aug. - 06 Sep.0911BQ0411Bm01Normal instrumental setup28 Aug.
Semester 2011A
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
28 Jul. - 05 Aug.0811AQ1611Am06Normal instrumental setup29 Jul.
23 Jun - 30 Jun.0811AQ1311Am05Normal instrumental setup31 Jun.
23 May - 07 Jun.1511AQ1111Am04Normal instrumental setup01 Jun.
25 Apr. - 08 May 1411AQ0911Am03Normal instrumental setup02 May
24 Mar. - 10 Apr.1811AQ0711Am02Normal instrumental setup03 Apr.
24 Feb. - 10 Mar.1411AQ0411Am01Normal instrumental setup02 Mar.
Semester 2010B
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
26 Jan. - 09 Feb.1410BQ1410Bm06Normal instrumental setup03 Jan.
30 Dec. - 12 Jan.1410BQ1210Bm05Normal instrumental setup04 Dec.
30 Nov. - 12 Dec.1310BQ1010Bm04Normal instrumental setup05 Nov.
27 Oct. - 13 Nov.1910BQ0810Bm03Normal instrumental setup06 Oct.
30 Sep. - 14 Oct.1510BQ0510Bm02Normal instrumental setup07 Sep.
31 Aug. - 13 Aug.1410BQ0310Bm01Normal instrumental setup09 Aug.
Semester 2010A
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
06 Jul. - 16 Jul.1010AQ1310Am06Normal instrumental setup10 Jul.
04 Jun - 15 Jun.1210AQ1010Am05Normal instrumental setup11 Jun.
07 May - 19 May 1210AQ0710Am04Normal instrumental setup13 May
05 Apr. - 19 Apr.1510AQ0510Am03Normal instrumental setup13 Apr.
08 Mar. - 23 Mar.1510AQ0310Am02Normal instrumental setup14 Mar.
05 Feb. - 21 Feb.1710AQ0110Am01Normal instrumental setup12 Feb.
Semester 2009B
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
07 Jan. - 20 Jan.1309BQ1409Bm06Normal instrumental setup14 Jan.
10 Dec. - 21 Dec.1109BQ1109Bm05Normal instrumental setup15 Dec.
10 Nov. - 23 Nov.1309BQ0909Bm04Normal instrumental setup15 Nov.
10 Oct. - 23 Oct.1309BQ0709Bm03Normal instrumental setup17 Oct.
11 Sep. - 24 Sep.1309BQ0509Bm02Normal instrumental setup17 Sep.
15 Aug. - 24 Aug.0909BQ0209Bm01Normal instrumental setup20 Aug.
Semester 2009A
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
14 Jul. - 28 Jul.1409AQ1309Am06Normal instrumental setup21 Jul.
15 Jun. - 30 Jun.1509AQ1109Am05Normal instrumental setup21 Jun.
15 May - 01 Jun.1709AQ0909Am04Normal instrumental setup23 May
16 Apr. - 01 May 1509AQ0709Am03Normal instrumental setup24 Apr.
17 Mar. - 03 Apr.1709AQ0509Am02Normal instrumental setup25 Mar.
17 Feb. - 06 Mar.1709AQ0309Am01Normal instrumental setup23 Feb.
01 Feb. - 03 Feb.0209AQ0108Bm07Normal instrumental setup26 Jan.
Semester 2008B
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
23 Jan. - 01 Feb.0908BQ1608Bm07Normal instrumental setup25 Jan.
20 Dec. - 30 Dec.0908BQ1308Bm06Normal instrumental setup26 Dec.
17 Nov. - 04 Dec.1608BQ1108Bm05Normal instrumental setup26 Nov.
20 Oct. - 06 Nov.1708BQ0908Bm04Normal instrumental setup28 Oct.
20 Sep. - 07 Oct.1808BQ0608Bm03Normal instrumental setup28 Sep.
25 Aug. - 05 Sep.1108BQ0408Bm02Normal instrumental setup30 Aug.
30 Jul. - 08 Aug.0908BQ0108Bm01Normal instrumental setup31 Jul.
Semester 2008A
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
27 May - 12 Jun.1608AQ0908Am05Normal instrumental setup02 Jun.
30 Apr. - 14 May 1408AQ0708Am04Normal instrumental setup04 May
28 Mar. - 14 Apr.1708AQ0508Am03Normal instrumental setup05 Apr.
27 Feb. - 14 Mar.1608AQ0308Am02Normal instrumental setup05 Mar.
31 Jan. - 16 Feb.1608AQ0108Am01Normal instrumental setup06 Feb.
Semester 2007B
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
02 Jan. - 16 Jan.1407BQ1107Bm06Normal instrumental setup07 Jan.
03 Dec. - 17 Dec.1407BQ1007Bm05Normal instrumental setup08 Dec.
02 Nov. - 15 Nov.1307BQ0807Bm04Normal instrumental setup08 Nov.
04 Oct. - 19 Oct.1507BQ0607Bm03Normal instrumental setup10 Oct.
04 Sep. - 19 Sep.1507BQ0407Bm02Normal instrumental setup10 Sep.
06 Aug. - 20 Aug.1407BQ0207Bm01Normal instrumental setup11 Aug.
Semester 2007A
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
20 Jul. - 30 Jul.1007AQ1207Am06Normal instrumental setup13 Jul.
30 May - 18 Jun.1907AQ0907Am05Normal instrumental setup14 Jun.
08 May - 17 May 0907AQ0707Am04Normal instrumental setup15 May
06 Apr. - 24 Apr.1807AQ0507Am03Normal instrumental setup16 Apr.
11 Mar. - 27 Mar.1607AQ0307Am02Normal instrumental setup18 Mar.
08 Feb. - 22 Feb.1407AQ0207Am01Normal instrumental setup16 Feb.
Semester 2006B
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
11 Jan. - 25 Jan.1506BQ1006Bm06Normal instrumental setup18 Jan.
11 Dec. - 26 Dec.1606BQ0806Bm05Normal instrumental setup19 Dec.
13 Nov. - 29 Nov.1606BQ0706Bm04Normal instrumental setup20 Nov.
10 Oct. - 31 Oct.2106BQ0506Bm03Normal instrumental setup21 Oct.
13 Sep. - 28 Sep.1506BQ0306Bm02Normal instrumental setup21 Sep.
15 Aug. - 01 Sep.1706BQ0106Bm01Normal instrumental setup (but z' light leak)23 Aug.
Semester 2006A
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
18 Jul. - 01 Aug.1406AQ1106Am06Normal instrumental setup (but z' light leak)24 Jul.
19 Jun. - 05 Jul.1606AQ0906Am05Normal instrumental setup (but z' light leak)25 Jun.
19 May - 07 Jun.1906AQ0806Am04Normal instrumental setup (but z' light leak)26 May
21 Apr - 05 May 1406AQ0606Am03Normal instrumental setup26 Apr.
22 Mar. - 04 Apr.1306AQ0406Am02Normal instrumental setup/Run lost to weather27 Mar.
17 Feb. - 07 Mar.1806AQ0206Am01Normal instrumental setup28 Feb.
01 Feb. - 06 Feb.0506AQ0105Bm06Normal instrumental setup28 Jan.
Semester 2005B
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
20 Jan. - 31 Jan.1105BQ1305Bm06Normal instrumental setup29 Jan.
21 Dec. - 08 Jan.1805BQ1105Bm05Normal instrumental setup30 Dec.
23 Nov. - 07 Dec.1405BQ0905Bm04Normal instrumental setup30 Nov.
22 Oct. - 09 Nov.1805BQ0705Bm03Normal instrumental setup01 Nov.
25 Sep. - 12 Oct.1705BQ0505Bm02Normal instrumental setup02 Oct.
26 Aug. - 11 Sep.1505BQ0305Bm01Half-mosaic during 1 night + 1 night to Espadons03 Sep.
31 Jul. - 12 Aug.1205BQ0105Am07Normal instrumental setup04 Aug.
Semester 2005A
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
24 Jul. - 31 Jul.0705AQ0705Am07Normal instrumental setup04 Aug.
28 Jun. - 14 Jul.1604AQ0605Am06Normal instrumental setup05 Jul.
27 May - 15 Jun.1905AQ0505Am05Normal instrumental setup05 Jun.
03 May - 18 May 1505AQ0405Am04Normal instrumental setup07 May
30 Mar. - 16 Apr.1705AQ0305Am03Normal instrumental setup07 Apr.
10 Mar. - 21 Mar.1105AQ0205Am02Normal instrumental setup09 Mar.
31 Jan. - 18 Feb.1805AQ0105Am01Normal instrumental setup08 Feb.
Semester 2004B
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
31 Dec. - 19 Jan.1904BQ0604Bm06Normal instrumental setup10 Jan.
02 Dec. - 21 Dec.1904BQ0504Bm05Normal instrumental setup11 Dec.
01 Nov. - 22 Nov.2104BQ0404Bm04Normal instrumental setup11 Nov.
03 Oct. - 22 Oct.1904BQ0304Bm03Right amp. CCDs 27->35 saturate @ 32K ADUs13 Oct.
04 Sep. - 23 Sep.1904BQ0204Bm02Right amp. CCDs 27->35 saturate @ 32K ADUs13 Sep.
06 Aug. - 23 Aug.1704BQ0104Bm01Multiple amplifiers failure15 Aug.
Semester 2004A
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
06 Jul. - 26 Jul.2004AQ0704Am07Normal instrumental setup16 Jul.
08 Jun. - 26 Jun.1804AQ0604Am06Normal instrumental setup17 Jun.
19 May - 27 May 0804AQ0504Am05Normal instrumental setup18 May
07 May - 14 May 0704AQ0404Am04Normal instrumental setup18 May
09 Apr. - 01 May 2204AQ0304Am03Normal instrumental setup18 Apr.
12 Mar. - 31 Mar.1904AQ0204Am02Normal instrumental setup19 Mar.
16 Feb. - 05 Mar.1804AQ0104Am01Normal instrumental setup / Run lost to weather19 Feb.
Semester 2003B
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
10 Jan. - 30 Jan.2003BQ0703Bm06CCD03 non operational for the whole run20 Jan.
15 Dec. - 31 Dec.1603BQ0603Bm05CCD03 non operational for the whole run22 Dec.
16 Nov. - 03 Dec.1703BQ0503Bm04CCD03 non operational 28 Nov. to 03 Dec.22 Nov.
16 Oct. - 01 Nov.1603BQ0403Bm03CCD03 non operational 27 Oct. to 01 Nov.24 Oct.
17 Sep. - 04 Oct.1703BQ0303Bm02CCD03 non operational for the whole run25 Sep.
20 Aug. - 04 Sep.1503BQ0203Bm01Normal instrumental setup26 Aug.
01 Aug. - 05 Aug.0403BQ0103Am06Normal instrumental setup28 Jul.
Semester 2003A
Dates_________#NQSO IDElixir IDNote____________________________________New Moon
20 Jul. - 01 Aug.1203AQ0603Am06Normal instrumental setup28 Jul.
21 Jun. - 07 Jul.1603AQ0503Am05Normal instrumental setup28 Jun.
23 May - 09 Jun.1703AQ0403Am04MegaNorth: half mosaic from 21/05 to 29/0530 May
22 Apr. - 30 Apr.0803AQ0303Am03No guiding and i'-z' light leaks20 Apr.
21 Mar. - 01 Apr.1103AQ0203Am02No guiding and i'-z' light leaks31 Mar.
07 Mar. - 11 Mar.0403AQ0103Am01No guiding and i'-z' light leaks02 Mar.