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!!!Volume
!!Typical volume allocation
Since moving to Hinode's S-band antenna for downlinks, EIS typically can downlink something like 600 Mb[2] per 24 hours. This is worked out by the total contact time at all ground-stations, in the coming OP Period, multiplied by the bandwidth to the ground[4]. Typical HOPs should be targeted to something like 250 Mb per day. __However__ , this is a rough guideline only, because the amount of telemetry that it's possible to downlink per day downlinked is quite variable, due to a number of practical factors.
For the most recent daily allocations, you should visit the [Hinode Daily Events|http://www.isas.jaxa.jp/home/solar/hinode_op/hinode_daily_events.php] webpages, where operations are documented, and check the typical allocation for EIS over the last few weeks. (Remember to halve this number to get a rough idea of the volume you should limit yourself to).
!!Do you have examples of what kind of observations are best suited for EIS?
Yes :-)
Go over to the [Study4LowDataVolume] page on this Wiki for examples of programmes recently developed for EIS.
!!!Hinode Operation Plans (HOPs)
This is the typical banner under which joint observations with Hinode are planned. HOPs are recommended by the Science Schedule Co-ordinators for [these types of observations|http://www.isas.jaxa.jp/home/solar/guidance/node5.html].
!!ISAS site guidance
We warmly encourage you to use Hinode in achieving your scientific objectives.
The [ISAS Hinode Operations website|http://www.isas.jaxa.jp/home/solar/hinode_op/] has a link to a new section on [Guidance for Hinode Observations|http://www.isas.jaxa.jp/home/solar/guidance/guidance.html], which is worth reading through in preparation for making a proposal.
!!Why can my old HOP no longer be run?
For background on the switch from X-band to S-band telemetering of data by Hinode, take a look at the [Hinode Science Schedule Co-ordinators' announcement|http://www.isas.jaxa.jp/home/solar/guidance/node1.html], first released in SolarNews.
!!How is the HOP process different?
In short, the answer to this is: not very much :-)
Eighteen months of post-commisioning experience has given the Hinode team time to work out the kind of information and lead time that proposers and team personnel need in order to run observations successfully. So now, this information has been made available as [''Guidance for proposal observations (HOP)''|http://www.isas.jaxa.jp/home/solar/guidance/node2.html] on the ISAS Hinode website.
!!!Extras
!Nomenclature
;__OP__:[1|#1]''Operation Programme''
;__S-band antenna__:[4|#4] ''Hinode's secondary antenna, with a bandwidth of 262 kb/s.''
;__Eclipse Season__:[5|#5] ''The portion of the year where the sun is occluded by the Earth's atmosphere for a fraction of each orbit. It lasts from late April until early September.''
;__AOCS__:[6|#6] ''Attitude and Orbit Control System''
;__s/c__:[7|#7] ''abbreviation of'' spacecraft
----
__Other Notes__
[2|#2]: Remember, Mb stands for mega__bits__ (1024 × 1024 bits), as distinct from MB (for mega__bytes__). 1 MB = 8Mb.
[3|#3]: Is this correct? I know it's approximately true, since we start in late April, and come out of eclipse season in early September.
[8|#8]: Hinode's orbital period is 98.5 minutes
This page (revision-20) was last changed on 02-Feb-2017 13:19 by JianSunTop