Observing Statistics

The following table summarises time spent observing at Great Shefford each month:

	[A]	[B]	[C]	[D]	[E]	[F]	[G]	[H]	[I]
Month	Nights used	Hours spent imaging	Time CCD exposing	Avg. session (hours)	Images acquired	Avg. time between exposures	Average exposure length	Efficiency [G]/[F]	Comments []
2024-Sep	12	52.9	1d 10h	4.4	15677	12s	8s	63.6
2024-Aug	14	62.2	1d 17h	4.4	15495	14s	9s	65.7	[3]
2024-Jul	13	37.2	1d 01h	2.9	10824	12s	8s	67.2
2024-Jun	16	45.1	1d 06h	2.8	12667	13s	9s	66.9	[2]
2024-May	9	24.9	16h 27m	2.8	6439	14s	9s	66.2	[4] Continued poor weather, worst May since 2015, lowest hours spent imaging [B] since 2002
2024-Apr	8	31.9	22h 16m	4.0	7401	16s	11s	69.8	[3] Joint worst April with 2019 for nights used [A], hours spent imaging [B]
2024-Mar	14	62.3	1d 17h	4.5	17103	13s	9s	66.4
2024-Feb	9	33.9	19h 51m	3.8	9861	12s	7s	58.5	Record wettest Feb in parts of UK
2024-Jan	11	62.0	1d 16h	5.6	18575	12s	8s	65.2
2023 total	152	562.4	14d 23h	3.7	156024	13s	8s	63.9%	Available on 358/365 nights.
2023-Dec	6	26.3	16h 45m	4.4	7748	12s	8s	63.8	[5] Poor weather, lowest time CCD exposing [C] for a Dec. since 2002
2023-Nov	11	55.8	1d 10h	5.1	14338	14s	8s	60.6
2023-Oct	12	58.1	1d 08h	4.8	19043	11s	6s	55.1
2023-Sep	13	42.1	1d 04h	3.2	11778	13s	9s	66.8
2023-Aug	15	47.2	1d 08h	3.1	12960	13s	9s	68.6	[3]
2023-Jul	11	27.3	18h 54m	2.5	6251	16s	11s	69.2	Poor weather, lowest hours spent imaging [B] for a July since 2010
2023-Jun	16	48.1	1d 09h	3.0	15258	11s	8s	69.2
2023-May	17	63.3	1d 17h	3.7	18532	12s	8s	64.8
2023-Apr	13	45.5	1d 05h	3.5	13707	12s	8s	64.7
2023-Mar	5	8.9	6h 13m	1.8	2190	15s	10s	69.9	Wettest Mar since 1981. 2nd worst month 2003-2023 (worst 2016 Jun)
2023-Feb	15	58.2	1d 12h	3.9	14825	14s	9s	61.1
2023-Jan	18	81.7	2d 04h	4.5	19394	15s	10s	63.7
2022 total	160	689.8	18d 21h	4.3	201082	12s	8s	65.6%	Available on 356/365 nights.
2022-Dec	11	55.6	1d 12h	5.1	14674	14s	9s	66.4	[4]
2022-Nov	15	47.0	1d 04h	3.1	11691	14s	9s	60.4
2022-Oct	10	39.1	1d 02h	3.9	11371	12s	8s	67.7	Lowest hours spent imaging [B] for an Oct. since 2002
2022-Sep	10	43.5	1d 03h	4.4	12913	12s	8s	62.1	Lowest time CCD exposing [C] for a Sept. since 2002
2022-Aug	16	57.7	1d 11h	3.6	17437	12s	7s	61.1
2022-Jul	11	30.2	20h 26m	2.7	9099	12s	8s	67.7	[3]
2022-Jun	14	40.2	1d 04h	2.9	12644	11s	8s	69.7	[2]
2022-May	13	43.8	1d 07h	3.4	12449	13s	9s	71.5
2022-Apr	18	77.9	2d 06h	4.3	21925	13s	9s	69.5
2022-Mar	15	84.6	2d 07h	5.6	28190	11s	7s	64.5
2022-Feb	12	72.1	1d 23h	6.0	22243	12s	8s	65.1
2022-Jan	15	98.1	2d 16h	6.5	26391	13s	9s	65.4	Best [C] and [E] Jan stats since 2002
2021 total	148	594.7	16d 09h	4.0	191926	11s	7s	66.0%	Available on 360/365 nights.
2021-Dec	7	23.2	16h 47m	3.3	6204	13s	10s	72.4	[3] Worst Dec stats since 2002. UK least Dec sunshine since 1956
2021-Nov	13	56.6	1d 11h	4.4	19668	10s	6s	62.1
2021-Oct	14	63.8	1d 15h	4.6	21719	11s	6s	61.2
2021-Sep	11	52.3	1d 11h	4.8	16673	11s	8s	67.3	[2]
2021-Aug	12	32.9	1d 01h	2.7	7640	16s	12s	75.3
2021-Jul	12	33.7	23h 01m	2.8	10466	12s	8s	68.2
2021-Jun	10	31.0	21h 04m	3.1	9642	12s	8s	68.0
2021-May	15	48.1	1d 07h	3.2	16734	10s	7s	64.9
2021-Apr	18	87.9	2d 09h	4.9	29580	11s	7s	64.3
2021-Mar	17	66.6	1d 18h	3.9	20619	12s	7s	63.7
2021-Feb	11	67.4	2d 00h	6.1	19703	12s	9s	70.9
2021-Jan	8	31.3	19h 44m	3.9	13278	8s	5s	63.1	Worst Jan stats since 2013
2020 total	188	828.2	22d 12h	4.4	220307	14s	9s	65.2%	Available on 366/366 nights. Best yearly stats since 2009
2020-Dec	13	47.9	1d 09h	3.7	12263	14s	10s	68.6
2020-Nov	15	66.2	1d 16h	4.4	17788	13s	8s	60.5
2020-Oct	11	55.2	1d 15h	5.0	15325	13s	9s	70.6
2020-Sep	19	93.7	2d 14h	4.9	26907	13s	8s	66.4	Best Sep stats since operations began in 2002
2020-Aug	14	40.6	1d 03h	2.9	11987	12s	8s	67.2
2020-Jul	15	58.4	1d 16h	3.9	16433	13s	9s	69.0
2020-Jun	11	34.4	22h 35m	3.1	10875	11s	7s	65.7
2020-May	23	89.6	2d 13h	3.9	24928	13s	9s	67.6	Best May stats since operations began in 2002
2020-Apr	22	104.4	2d 22h	4.7	29259	13s	9s	67.0	Best Apr stats since operations began in 2002
2020-Mar	17	97.2	2d 16h	5.7	21730	16s	11s	65.4	Best Mar stats since 2009
2020-Feb	16	71.6	1d 18h	4.5	18140	14s	8s	59.0
2020-Jan	12	69.2	1d 15h	5.8	14672	17s	10s	57.1
2019 total	156	630.2	16d 13h	4.0	139634	16s	10s	63.0%	Available on 354/365 nights.
2019-Dec	9	34.7	21h 55m	3.9	8974	14s	9s	63.2
2019-Nov	9	49.8	1d 02h	5.5	11043	16s	8s	52.0
2019-Oct	10	43.4	1d 06h	4.3	10413	15s	10s	69.2
2019-Sep	17	89.6	2d 07h	5.3	20240	16s	10s	61.9
2019-Aug	16	53.2	1d 12h	3.3	11498	17s	11s	67.5
2019-Jul	18	49.3	1d 11h	2.7	10975	16s	11s	70.0
2019-Jun	12	33.1	23h 08m	2.8	7587	16s	11s	69.9
2019-May	16	54.3	1d 08h	3.4	12709	15s	9s	59.5
2019-Apr	8	31.9	20h 12m	4.0	6731	17s	11s	63.5	[11] Out of operation 07-17 Apr due to GPS rollover bug
2019-Mar	14	58.6	1d 07h	4.2	11886	18s	10s	53.6
2019-Feb	14	62.6	1d 16h	4.5	13561	17s	11s	64.2
2019-Jan	13	69.8	1d 22h	5.4	14017	18s	12s	65.8
2018 total	175	712.9	20d 04h	4.1	194228	13s	9s	67.9%	Available on 364/365 nights. Best yearly stats since 2009
2018-Dec	12	38.9	1d 02h	3.2	10209	14s	9s	66.4
2018-Nov	14	62.2	1d 13h	4.4	16153	14s	8s	58.8
2018-Oct	18	94.5	2d 18h	5.3	25076	14s	10s	70.3	Best Oct stats since 2008
2018-Sep	19	83.2	2d 06h	4.4	25709	12s	8s	65.1	Best Sep stats since 2009. Most images acquired in a month to date (prev. high 2018-Feb) [1]
2018-Aug	17	68.4	2d 02h	4.0	16737	15s	11s	72.4	Best Aug stats since 2009
2018-Jul	21	67.6	1d 23h	3.2	15398	16s	11s	68.8	Best July stats since operations began in 2002
2018-Jun	17	49.4	1d 13h	2.9	11489	15s	12s	74.8	Best June stats since 2011
2018-May	17	72.0	2d 03h	4.2	20683	13s	9s	70.3	Best May stats since 2009
2018-Apr	8	38.1	1d 01h	4.8	12484	11s	7s	65.4
2018-Mar	8	19.7	12h 57m	2.5	6051	12s	8s	65.9	Worst Mar since operations began in 2002
2018-Feb	15	80.3	2d 05h	5.4	23050	13s	8s	65.7	Most images acquired in a month to date (prev. high 2009-Mar)
2018-Jan	9	38.6	1d 03h	4.3	11189	12s	9s	70.0
2017 total	138	585.6	15d 21h	4.2	130532	16s	11s	65.1%	Available on 365/365 nights.
2017-Dec	9	54.9	1d 15h	6.1	16645	12s	9s	71.9
2017-Nov	13	65.1	2d 01h	5.0	13983	17s	13s	75.7
2017-Oct	9	55.1	1d 12h	6.1	16512	12s	8s	65.3
2017-Sep	9	43.3	1d 04h	4.8	10361	15s	10s	63.9
2017-Aug	13	47.5	1d 07h	3.7	9636	18s	12s	65.7
2017-Jul	14	32.3	21h 01m	2.3	7801	15s	10s	65.1
2017-Jun	10	35.7	1d 02h	3.6	9606	13s	10s	73.1
2017-May	14	40.6	1d 04h	2.9	10029	15s	10s	68.8
2017-Apr	16	63.2	1d 11h	4.0	11558	20s	11s	55.5
2017-Mar	11	37.8	21h 34m	3.4	6458	21s	12s	57.1
2017-Feb	6	29.6	16h 40m	4.9	5817	18s	10s	56.4
2017-Jan	14	80.5	2d 01h	5.8	12123	24s	15s	61.3
2016 total	139	605.0	15d 06h	4.4	97721	22s	13s	60.4%	Available on 366/366 nights.
2016-Dec	9	39.5	1d 04h	4.4	6012	24s	17s	70.0
2016-Nov	16	79.1	2d 00h	4.9	13204	22s	13s	60.1	Best Nov stats since 2009
2016-Oct	20	88.1	2d 00h	4.4	13099	24s	13s	54.8	Best stats since 2012-Mar
2016-Sep	14	67.0	1d 12h	4.8	10328	23s	12s	53.1
2016-Aug	14	58.0	1d 14h	4.1	8613	24s	16s	65.2
2016-Jul	9	31.5	20h 58m	3.5	5275	22s	14s	66.5
2016-Jun	4	7.8	4h 58m	2.0	1435	20s	12s	63.5	Low pressure stuck over UK, worst stats since 2002
2016-May	14	45.4	1d 03h	3.2	7538	22s	13s	58.6
2016-Apr	11	50.0	1d 08h	4.5	7910	23s	15s	64.0
2016-Mar	10	49.3	1d 05h	4.9	8927	20s	12s	59.5
2016-Feb	9	41.4	1d 02h	4.6	7327	20s	13s	63.2
2016-Jan	9	48.0	1d 05h	5.3	8053	21s	13s	59.8
2015 total	131	495.7	12d 07h	3.8	87490	20s	12s	59.6%	Available on 363/365 nights.
2015-Dec	8	36.6	20h 13m	4.6	5852	22s	12s	55.4
2015-Nov	7	27.1	15h 40m	3.9	5500	18s	10s	57.8
2015-Oct	11	41.9	1d 01h	3.8	7033	21s	13s	59.0
2015-Sep	18	60.3	1d 10h	3.4	10306	21s	12s	56.7
2015-Aug	8	24.8	15h 17m	3.1	3570	25s	15s	61.7
2015-Jul	9	30.2	18h 02m	3.4	4580	24s	14s	59.8
2015-Jun	9	27.4	17h 16m	3.0	5556	18s	11s	63.1
2015-May	8	25.0	15h 03m	3.1	4179	22s	13s	60.2
2015-Apr	16	74.3	1d 17h	4.6	15194	18s	10s	55.5	[2]
2015-Mar	14	52.7	1d 07h	3.8	9364	20s	12s	59.0
2015-Feb	11	47.8	1d 07h	4.3	8373	21s	13s	64.3
2015-Jan	12	47.7	1d 08h	4.0	7983	22s	14s	66.4
2014 total	146	596.8	13d 00h	4.1	84802	25s	13s	52.2%	Available on 361/365 nights.
2014-Dec	11	76.2	1d 17h	6.9	12330	22s	12s	54.4
2014-Nov	9	29.4	16h 15m	3.3	3605	29s	16s	55.4	[2]
2014-Oct	14	55.9	1d 05h	4.0	7864	26s	13s	51.3
2014-Sep	15	61.7	1d 08h	4.1	8352	27s	14s	51.9
2014-Aug	10	40.3	20h 28m	4.0	4926	29s	15s	50.8
2014-July	15	44.6	23h 07m	3.0	6368	25s	13s	51.8
2014-June	14	33.7	16h 30m	2.4	5259	23s	11s	49.1
2014-May	11	36.8	17h 34m	3.3	5476	24s	12s	47.8	Worst May conditions since 2003
2014-Apr	14	51.6	1d 01h	3.7	7433	25s	12s	47.9
2014-Mar	13	71.7	1d 13h	5.5	9392	27s	14s	51.5	[2]
2014-Feb	10	37.4	21h 59m	3.7	5319	25s	15s	58.8	Wettest winter (Dec-Feb) since records began in 1766
2014-Jan	10	57.6	1d 08h	5.8	8478	24s	14s	55.4	Wettest January since records began in 1766
2013 total	147	592.1	13d 12h	4.0	79576	27s	15s	54.7%	Available on 354/365 nights. Worst full year stats 2003-2013
2013-Dec	12	56.8	1d 08h	4.7	7474	27s	15s	56.0
2013-Nov	11	48.9	1d 02h	4.4	5923	30s	16s	53.4
2013-Oct	15	70.4	1d 11h	4.7	9908	26s	13s	49.2
2013-Sep	15	62.5	1d 06h	4.2	8650	26s	12s	47.2
2013-Aug	17	58.5	1d 10h	3.4	7429	28s	17s	58.4
2013-Jul	15	44.3	1d 03h	3.0	5884	27s	17s	61.9
2013-Jun	9	33.4	18h 12m	3.7	3850	31s	17s	54.6	[2]
2013-May	12	44.4	1d 01h	3.7	6681	24s	13s	55.5	[8]
2013-Apr	17	69.5	1d 15h	4.1	10750	23s	13s	56.0	[2]
2013-Mar	7	32.1	17h 20m	4.6	4297	27s	15s	54.0	Worst Mar since 2002
2013-Feb	10	47.2	1d 02h	4.7	5580	30s	17s	56.0	Worst Feb since 2002 other than 2011
2013-Jan	7	24.0	14h 19m	3.4	3150	27s	16s	59.6	Worst Jan since 2002
2012 total	161	740.5	15d 19h	4.6	101543	26s	13s	51.2%	Available on 334/366 nights. Wettest year since records began in 1910 for England
2012-Dec	14	55.0	1d 05h	3.9	9396	21s	10s	52.7
2012-Nov	13	58.1	1d 05h	4.5	9150	23s	11s	50.1
2012-Oct	12	41.7	18h 08m	3.5	5657	27s	12s	43.5
2012-Sep	20	83.3	1d 21h	4.2	9882	30s	16s	53.8
2012-Aug	13	40.8	20h 28m	3.1	4039	36s	18s	50.2	[1] Poor weather continues. Jun-Jul-Aug wettest for 100 years in England
2012-Jul	9	30.1	16h 12m	3.3	3882	28s	15s	53.9	[2] Poor weather continued until 16th July
2012-Jun	7	18.1	9h 42m	2.6	3153	21s	11s	53.5	[9] V. poor weather. Equal-wettest June in England since records began in 1766
2012-May	13	55.5	1d 05h	4.3	7475	27s	14s	52.6	[4]
2012-Apr	11	50.1	1d 03h	4.6	6824	26s	14s	54.1	Worst Apr since operations began in 2002 [3]
2012-Mar	19	113.3	2d 09h	6.0	16498	25s	12s	50.4%	[2]
2012-Feb	10	85.1	1d 22h	8.5	9833	31s	17s	53.9%	[8]
2012-Jan	20	109.3	2d 05h	5.5	15754	25s	12s	48.1%	[2]
2011 total	157	714.2	16d 15h	4.5	96026	27s	15s	55.8%	Available on 306/365 nights
2011-Dec	14	80.8	2d 00h	5.8	10320	28s	17s	59.5%	[5]
2011-Nov	9	51.3	1d 07h	5.7	5868	31s	19s	60.9%	[5]
2011-Oct	6	40.1	18h 58m	6.7	3622	40s	19s	47.3%	[16]
2011-Sep	17	85.3	1d 23h	5.0	10594	29s	16s	54.7%	[5]
2011-Aug	11	36.4	20h 43m	3.3	3845	34s	19s	59.9%	[3] Worst Aug since 2002
2011-Jul	13	34.3	21h 18m	2.6	3978	31s	19s	62.2%
2011-Jun	18	61.2	1d 08h	3.4	8852	25s	13s	52.9%
2011-May	16	67.5	1d 14h	4.2	8659	28s	16s	56.9%
2011-Apr	21	107.4	2d 12h	5.1	15508	25s	14s	55.4%	[3]
2011-Mar	16	81.8	1d 15h	5.1	14722	20s	10s	48.2%	[6]
2011-Feb	7	26.0	15h 06m	3.7	4067	23s	13s	58.1%	[6] Worst Feb since 2002
2011-Jan	9	42.1	1d 03h	4.7	5991	25s	16s	63.9%	[5] Worst Jan since 2002
2010 total	169	702.3	15d 15h	4.2	112657	22s	12s	53.4%	Available on 347/365 nights
2010-Dec	10	48.9	1d 03h	4.9	7615	23s	13s	55.6%	Worst Dec since 2002
2010-Nov	13	41.7	17h 02m	3.2	6473	23s	9s	40.9%	Unusually poor conditions for Nov, worst since 2003
2010-Oct	17	69.3	1d 14h	4.1	11415	22s	12s	54.6%
2010-Sep	17	85.4	1d 13h	5.0	12441	25s	11s	43.7%
2010-Aug	14	61.5	1d 10h	4.4	6473	34s	19s	55.9%
2010-Jul	10	21.3	12h 36m	2.1	3074	25s	15s	59.4%	Worst conditions since 2007-Jun
2010-Jun	17	53.7	1d 06h	3.2	8089	24s	13s	55.1%
2010-May	14	56.9	1d 04h	4.1	11618	18s	9s	48.6%
2010-Apr	19	70.6	1d 11h	3.7	14279	18s	9s	48.9%
2010-Mar	14	77.6	1d 16h	5.5	11501	24s	13s	52.1%
2010-Feb	12	50.9	1d 09h	4.2	8347	22s	14s	64.6%
2010-Jan	12	64.7	1d 20h	5.4	11332	21s	14s	67.7%
2009 total	202	938.2	24d 00h	4.6	148361	23s	14s	61.4%	Available on 353/365 nights
2009-Dec	15	77.6	2d 04h	5.2	11455	24s	8s	66.5%
2009-Nov	18	87.2	1d 20h	4.8	15481	20s	10s	50.8%
2009-Oct	13	69.9	1d 20h	5.4	15994	16s	10s	62.8%
2009-Sep	19	103.6	2d 11h	5.5	13615	27s	15s	56.6%
2009-Aug	18	96.3	2d 05h	5.3	18278	19s	11s	55.5%
2009-Jul	16	48.4	1d 14h	3.0	5241	33s	26s	78.7%
2009-Jun	18	49.0	1d 07h	2.7	9473	19s	12s	64.1%
2009-May	23	84.0	2d 04h	3.7	11327	27s	17s	62.3%
2009-Apr	17	71.8	2d 03h	4.2	10405	25s	18s	71.2%
2009-Mar	19	114.5	2d 16h	6.0	19191	21s	12s	56.2%
2009-Feb	12	54.6	1d 09h	4.5	6351	31s	19s	61.1%
2009-Jan	14	81.4	2d 05h	5.8	11550	25s	17s	65.6%
2008 total	171	753.8	21d 13h	4.4	91715	30s	20s	68.6%	Available on 348/366 nights
2008-Dec	15	76.4	2d 02h	5.1	9121	30s	20s	65.7%
2008-Nov	11	52.7	1d 11h	4.8	5608	34s	23s	66.8%
2008-Oct	20	125.3	3d 22h	6.3	14971	30s	23s	75.0%
2008-Sep	14	70.6	1d 21h	5.0	7498	34s	22s	63.5%
2008-Aug	14	50.6	1d 10h	3.6	5946	31s	20s	66.5%
2008-Jul	13	25.0	17h 24m	1.9	2672	34s	23s	69.7%
2008-Jun	16	47.4	1d 10h	3.0	7321	23s	16s	70.7%
2008-May	10	30.2	22h 21m	3.0	4086	27s	20s	74.0%
2008-Apr	15	62.2	1d 19h	4.1	8110	28s	19s	68.7%
2008-Mar	16	58.7	1d 10h	3.7	6779	31s	18s	58.6%	[7] Out of operation 7 nights transformer failure
2008-Feb	15	101.8	2d 22h	6.8	13810	27s	18s	69.2%
2008-Jan	12	53.0	1d 14h	4.4	5793	33s	24s	72.7%
2007 total	178	819.7	22d 03h	4.6	92025	32s	21s	64.8%	Available on 347/365 nights
2007-Dec	15	82.5	2d 09h	5.5	7034	42s	29s	69.2%
2007-Nov	14	72.9	2d 00h	5.2	9979	26s	17s	66.1%
2007-Oct	13	52.5	1d 09h	4.0	6206	30s	19s	62.5%
2007-Sep	17	96.3	2d 13h	5.7	10615	33s	21s	63.6%
2007-Aug	15	71.0	1d 21h	4.7	7286	35s	22s	63.8%
2007-Jul	16	49.9	23h 38m	3.1	4578	39s	19s	47.4%	Poor weather continued, flooding on 20 July.
2007-Jun	8	20.4	12h 34m	2.5	3292	22s	14s	61.8%	Very poor weather across the UK in May & especially June, which was the cloudiest month since 2002 Dec.
2007-May	14	40.8	1d 03h	2.9	4343	34s	22s	65.5%
2007-Apr	20	98.7	2d 13h	4.9	12123	29s	18s	61.6%
2007-Mar	16	98.1	2d 12h	6.1	12030	29s	18s	61.6%
2007-Feb	12	52.4	1d 14h	4.4	5884	32s	24s	73.4%
2007-Jan	18	84.3	2d 16h	4.7	8655	35s	26s	75.4%
2006 total	169	798.5	21d 03h	4.7	80515	36s	23s	63.5%	Available on 350/365 nights
2006-Dec	10	59.2	1d 20h	5.9	6583	32s	24s	74.3%
2006-Nov	16	105.1	2d 15h	6.6	9553	40s	24s	59.6%
2006-Oct	14	94.0	2d 12h	6.7	8989	38s	24s	64.2%
2006-Sep	14	70.2	1d 17h	5.0	7805	32s	19s	58.4%
2006-Aug	16	51.4	1d 07h	3.2	4282	43s	26s	60.7%
2006-Jul	16	61.6	1d 18h	3.9	5680	39s	27s	68.0%
2006-Jun	13	37.3	23h 49h	2.9	4473	30s	19s	63.9%
2006-May	13	38.9	22h 00h	3.0	4693	30s	17s	56.5%
2006-Apr	19	87.9	2d 12h	4.6	8056	39s	27s	68.2%
2006-Mar	11	67.0	1d 18h	6.1	6112	39s	25s	62.8%
2006-Feb	14	53.5	1d 09h	3.8	5520	35s	22s	62.0%
2006-Jan	13	72.3	1d 21h	5.6	8769	30s	18s	62.3%
2005 total	181	841.5	18d 06h	4.7	69239	44s	23s	52.1%	Available on 332/365 nights
2005-Dec	17	101.5	2d 16h	6.0	9124	40s	25s	62.9%
2005-Nov	16	112.3	3d 03h	7.0	11225	36s	24s	66.8%
2005-Oct	14	60.5	1d 15h	4.3	6792	32s	21s	64.5%
2005-Sep	12 (9th-30th)	50.0	1d 06h	4.2	4297	42s	26s	63.5%	Sep [9] Aug[17] Out of operation from 15Aug-09Sep (CCD being upgraded)
2005-Aug	11 (1st-14th)	42.1	19h 11m	3.8	2800	54s	25s	45.6%
2005-Jul	18	61.0	1d 01h	3.4	4267	51s	21s	40.3%
2005-Jun	11	35.5	15h 40m	3.2	2802	46s	20s	44.2%	[7] Out of operation 7 nights (Telescope being upgraded)
2005-May	21	66.6	1d 07h	3.2	5787	41s	19s	45.8%
2005-Apr	18	79.7	1d 14h	4.4	6014	48s	23s	48.2%
2005-Mar	15	74.2	1d 08h	4.9	5281	51s	22s	43.4%
2005-Feb	13	55.0	1d 00h	4.2	3604	55s	24s	43.7%
2005-Jan	15	103.2	1d 21h	6.9	7246	51s	22s	43.4%
2004 total	182	774.6	12d 15h	4.3	53725	52s	20s	39.1%	Available on 361/366 nights
2004-Dec	17	97.1	1d 13h	5.7	7005	50s	19s	38.4%
2004-Nov	14	62.5	1d 03h	4.5	4235	53s	23s	43.9%
2004-Oct	15	57.6	1d 01h	3.8	4226	49s	22s	44.5%
2004-Sep	17	93.4	1d 18h	5.5	7402	45s	21s	46.0%
2004-Aug	18	67.6	1d 06h	3.8	5184	47s	21s	44.8%
2004-Jul	15	30.4	14h 43m	2.0	2173	50s	24s	48.5%
2004-Jun	17	41.4	17h 38m	2.4	3395	44s	19s	42.6%
2004-May	13	46.0	18h 05m	3.5	3872	43s	17s	39.3%
2004-Apr	13	63.2	21h 37m	4.9	4964	46s	16s	34.2%
2004-Mar	16	70.3	23h 31m	4.4	4492	56s	19s	33.5%
2004-Feb	16	75.7	1d 00h	4.7	3592	1m16s	24s	32.0%
2004-Jan	11	69.6	19h 47m	6.3	3185	1m19s	22s	28.4%
2003 total	183	701.1	7d 13h	3.8	28090	1m30s	23s	25.8%	Available on 347/365 nights
2003-Dec	13	83.6	1d 01h	6.4	3965	1m16s	23s	30.8%
2003-Nov	10	36.2	8h 48m	3.6	1539	1m25s	21s	24.3%
2003-Oct	15	77.7	23h 46m	5.2	3713	1m15s	23s	30.6%
2003-Sep	23	110.7	1d 03h	4.8	4334	1m32s	22s	24.4%
2003-Aug	18	61.6	16h 22m	3.4	2146	1m43s	27s	26.6%
2003-Jul	16	42.7	9h 39m	2.7	1619	1m35s	21s	22.6%
2003-Jun	7	20.9	7h 06m	3.0	967	1m18s	26s	34.0%
2003-May	13	30.9	8h 47m	2.4	1242	1m29s	25s	28.5%
2003-Apr	17	52.5	12h 03m	3.1	1992	1m35s	22s	23.0%
2003-Mar	18	68.9	13h 35m	3.8	2674	1m33s	18s	19.7%
2003-Feb	16	58.5	13h 31m	3.7	1983	1m46s	25s	23.1%
2003-Jan	17	57.0	14h 37m	3.4	1916	1m47s	27s	25.7%
2002 total	87	164.3	1d 02h	1.9	3042	3m14s	31s	15.8%	Available on 230/365 nights
2002-Dec	5	11.6	2h 38m	2.3	323	2m09s	29s	22.8%
2002-Nov	13	16.3	3h 27m	1.3	419	2m20s	30s	21.2%
2002-Oct	9	35.6	4h 03m	4.0	506	4m13s	29s	11.4%
2002-Sep	15	24.1	4h 14m	1.6	509	2m51s	30s	17.6%
2002-Aug	18	34.7	5h 05m	1.9	645	3m14s	28s	14.7%
2002-Jul	15	26.0	3h 40m	1.7	411	3m48s	32s	14.1%
2002-Jun	8	12.7	2h 11m	1.6	169	4m30s	47s	17.3%
2002-May	4	3.4	35m	0.8	60	3m21s	36s	17.7%	First light 26th May