All-sky imager (ASI) observations from Sondrestrom are available on the web at http://isr.sri.com/instruments/allsky. The imager operates whenever the solar zenith angle is greater than 105 degrees and the moon is down, regardless of the weather. A complete listing for operational UT hours and sky conditions, as observed in 630.0 nm emission, is summarized in on-line catalogs for each winter since 1999/2000. The URL listed above also archives JPEG renderings of all available raw images, as well as summary MPEG movie loops.

Prior to mid-November 2001, the five position filter wheel was configured to acquire images at (a) 427.8 nm (N2+), (b) 486.2 nm (H-beta protons), (c) 489.5 nm (H-beta background), (d) 630.0 nm (OI), and (e) 732/3 (OII). Most archived patrol data for a given night correspond to 427.8 nm and 630.0 nm images. Subsequent to this date, the H-beta filter was replaced by a wideband red-glass filter to record prompt emission longward of 645 nm and after mid-January 2002, the H-beta background filter was replaced by a 777.4 nm (OI) filter.

The typical patrol operation integrates at 630.0 nm for 15 s, to enhance visibility of polar cap patches and arcs, followed by a 15 to 30 s 427.8 nm integration. This summary list provides UT daynumbers which span the on-line archive of available 630.0 nm images. For further Sondrestrom ASI details, photometric processing, and image interpretation contact Rick Doe (doe@sri.com).

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1999-2000	257-261	269-270	341-354	360-015	017-018	026-029	031-044	053-054	059-072
cont.	084-084	097-097
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2000-2001	270-286	291-315	319-327	331-344	348-348	003-007	011-035	040-049	070-077
cont.	080-089
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2001-2002	256-271	281-302	311-331	339-358	001-025	031-053	059-087	090-099
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2002-2003	247-263	272-285	287-290	292-293	300-322	328-351	356-010	014-015	020-042
cont.	049-070	079-096
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2003-2004	252-252	264-282	290-297	300-311	318-340	346-001	003-004	010-029	031-032
cont.	039-048
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2004-2005	254-260	262-271	280-300	308-317	320-329	336-358	364-020	027-032
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2005-2006	326-343	352-358	016-016	028-030	032-032	034-034	036-036	044-048
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2006-2007	260-278	286-293	296-307	314-336	342-359	361-365	005-013	015-028	034-041
cont.	043-047	050-055
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