| | 1 | [[PageOutline]] |
| | 2 | |
| | 3 | = Heather's PS1 Seminar = |
| | 4 | |
| | 5 | Introduction to PanSTARRS Data products |
| | 6 | ---- |
| | 7 | == Outline == |
| | 8 | |
| | 9 | The talk is on the wiki, please click on interesting links, please play with your computers (as long as it involves ps1), please ask questions! I will cover: |
| | 10 | |
| | 11 | * Computer Resources |
| | 12 | * Help! |
| | 13 | * How to get to the Pixels |
| | 14 | * How to get to the Catalogs |
| | 15 | |
| | 16 | ---- |
| | 17 | == Computer Resources == |
| | 18 | |
| | 19 | Advertisement: we have a machine, called 'ifaps1' which is mostly unused. It has access to various ps1 machines, it has access to various ipp tools. |
| | 20 | |
| | 21 | * Who can access it: anyone with a galileo account |
| | 22 | * How to set it up: Follow instructions here: http://svn.pan-starrs.ifa.hawaii.edu/trac/ipp/wiki/IPP_on_ifaps1 |
| | 23 | * we also have an idl license for it |
| | 24 | * useful to use our tools (and cfitsio) - useful for running psphot, or for funpack (to unzip the compressed files) |
| | 25 | * warning: you have to access it from within the ifa network (ie, not from home) |
| | 26 | |
| | 27 | == Where to get help == |
| | 28 | |
| | 29 | First step look at the wikis, if need more information ask people |
| | 30 | |
| | 31 | === Wikis === |
| | 32 | |
| | 33 | * ps1sc wiki http://ps1sc.ifa.hawaii.edu/PS1wiki/index.php/Main_Page |
| | 34 | * ipp wiki main page (and this page): http://svn.pan-starrs.ifa.hawaii.edu/trac/ipp/ , specifically the part for 'IPP users' |
| | 35 | * psps wiki http://web01.psps.ifa.hawaii.edu/psps-trac/wiki/PSPSNews |
| | 36 | |
| | 37 | === People === |
| | 38 | |
| | 39 | These are the people in ipp/psps, (heather) has labeled them: |
| | 40 | |
| | 41 | * ken - psvo |
| | 42 | * gene - dvo / 3pi |
| | 43 | * mark - md |
| | 44 | * bill - postmaster (postage stamp server) |
| | 45 | * chris - grand reprocessing |
| | 46 | * serge - mops czar |
| | 47 | * heather - psps / skyprobe |
| | 48 | * conrad - psps |
| | 49 | * thomas - psps |
| | 50 | |
| | 51 | Ask any of us questions. If we don't know we probably know who to ask :) |
| | 52 | |
| | 53 | ---- |
| | 54 | == Surveys == |
| | 55 | |
| | 56 | Most in this room will likely use one of 2 surveys: |
| | 57 | |
| | 58 | === 3pi survey === |
| | 59 | |
| | 60 | Three Pi has covered everything north of dec = -30 in grizy |
| | 61 | |
| | 62 | === Medium Deep (MD) survey === |
| | 63 | |
| | 64 | Medium Deep survey is ~ 12 spots in the sky with a lot of coverage in time: |
| | 65 | |
| | 66 | ||Field #||Name||Alt Name||RA (J2000)||RA (deg)||Dec (J2000)||Dec (deg)||Comment|| |
| | 67 | ||00||PS1MD00||M31||00 42 42||010.6750||+41 16 00||+41.2667||M31. No change from original pointing|| |
| | 68 | ||01||PS1MD01||XMM-LSS-DXS/VVDS-02h||02 24 50||036.2074||-04 35 00||-04.5833||Multi-wavelength Survey Field. Shift 1 SC S-E to avoid Mira and improve VVDS coverage|| |
| | 69 | ||02||PS1MD02||CDFS/GOODS/GEMS||03 32 24||053.1000||-28 08 00||-28.1333||Multi-wavelength Survey Field. Shift 1 SC S to move CDFS off-centre and improve coverage|| |
| | 70 | ||03||PS1MD03||IFA/Lynx||08 42 22||130.5917||+44 19 00||+44.3167||Radio Survey Field. No change from original pointing|| |
| | 71 | ||04||PS1MD04||COSMOS||10 00 00||150.0000||+02 12 00||+02.2000||Multi-wavelength Survey Field. No change from original pointing|| |
| | 72 | ||05||PS1MD05||Lockman-DXS||10 47 40||161.9167||+58 05 00||+58.0833||Multi-wavelength Survey Field|| |
| | 73 | ||06||PS1MD06||NGC 4258||12 20 00||185.0000||+47 07 00||+47.1167||H20 Maser. No change from previous table|| |
| | 74 | ||07||PS1MD07||DEEP2 Field 1/Extended Groth Strip||14 14 49||213.7051||+53 05 00||+53.0834||Multi-wavelength Survey Field. Shift 1 SC S-E to lose M101 and improve EGS overlap|| |
| | 75 | ||08||PS1MD08||EliasN1-DXS||16 11 09||242.7875||+54 57 00||+54.9500||Multi-wavelength Survey Field. No change from original pointing|| |
| | 76 | ||09||PS1MD09||SA22-DXS/VVDS-22h||22 16 45||334.1875||+00 17 00||+00.2833||Multi-wavelength Survey Field. Shift 1.5 SC E to improve coverage with VVDS|| |
| | 77 | ||10||PS1MD10||DEEP2-Field3||23 29 15||352.3125||-00 26 00||-00.4333||Multi-wavelength Survey Field. Shift 1 SC E to improve DEEP2 coverage|| |
| | 78 | ||11||PS1MD11||NEP||18 00 00||270.0000||+66 34 00||+66.56||North Celestial Pole|| |
| | 79 | |
| | 80 | === Other === |
| | 81 | |
| | 82 | There are other surveys, if you need access please ask |
| | 83 | |
| | 84 | ||PS1 surveys || filters || percent time || |
| | 85 | || 3pi steradian survey || grizy || 56 || |
| | 86 | || calibration fields || grizy || 2 || |
| | 87 | || medium deep survey || grizy || 25|| |
| | 88 | || solar system "sweet spot" survey || r ||5 || |
| | 89 | || stellar transit survey || i || 4 || |
| | 90 | || M31 Survey || grizy ||2 || |
| | 91 | ||PI time || grizy ||6 || |
| | 92 | |
| | 93 | |
| | 94 | ---- |
| | 95 | == How to access the Pixels == |
| | 96 | |
| | 97 | === Which survey? === |
| | 98 | |
| | 99 | For a generic 'can I see my favorite patch of the sky', you want the 3pi database |
| | 100 | |
| | 101 | For time domain stuff you likely want a 'Medium Deep Field', but this covers only a small area of sky |
| | 102 | |
| | 103 | === Different stages (depends on what you want) === |
| | 104 | |
| | 105 | * chip - detrended data by chip (there are 60 per exposure) |
| | 106 | * cam - the chips 'glued' together |
| | 107 | * warp - warped to have .25" pixels |
| | 108 | * stack - stacks of images - may not cover all of 3pi sky yet (be careful) |
| | 109 | * diff - difference images (only for MD fields) |
| | 110 | |
| | 111 | Best bet is to try stack, if nothing there then try warp. This is just a generic guess, other stages may suit your needs better. |
| | 112 | |
| | 113 | === Different ways to get pixels === |
| | 114 | |
| | 115 | * Postage Stamp Server |
| | 116 | * good to grab your specific patch of sky |
| | 117 | * access here: http://pstamp.ipp.ifa.hawaii.edu/request.php |
| | 118 | * wiki here: http://svn.pan-starrs.ifa.hawaii.edu/trac/ipp/wiki/PostageStampServer |
| | 119 | * warning - might not work from home (might need to be from within ifa network) |
| | 120 | |
| | 121 | * Datastore |
| | 122 | * good to grab stuff automatically (we put data on there as we process it) |
| | 123 | |
| | 124 | * Ask |
| | 125 | * good for skyprobe |
| | 126 | * good if you need data that the postage stamp server doesn't have (ie, detrends? other stuff?) |
| | 127 | |
| | 128 | ---- |
| | 129 | == How to access the catalogs == |
| | 130 | |
| | 131 | Different ways, depends on your needs: |
| | 132 | |
| | 133 | * PSPS |
| | 134 | * access through http://web01.psps.ifa.hawaii.edu/PSI/login.php |
| | 135 | * preferred way because it's easy |
| | 136 | * can use PSVO |
| | 137 | * information on the flags: http://svn.pan-starrs.ifa.hawaii.edu/trac/ipp/wiki/PSPSFlags_SAS10 |
| | 138 | * general psps information: http://web01.psps.ifa.hawaii.edu/psps-trac/wiki/PSPSNews |
| | 139 | * con: limited data in it now (will have more soon) |
| | 140 | |
| | 141 | * Postage stamp Server |
| | 142 | * grab catalogs or images of individual exposures |
| | 143 | * easy to use |
| | 144 | * not good for searches |
| | 145 | * access here: http://pstamp.ipp.ifa.hawaii.edu/request.php (from within ifa network) |
| | 146 | * wiki here: http://svn.pan-starrs.ifa.hawaii.edu/trac/ipp/wiki/PostageStampServer |
| | 147 | |
| | 148 | * dvo (see Gene) |
| | 149 | * covers the whole sky |
| | 150 | * hard to use |
| | 151 | |
| | 152 | ---- |
| | 153 | == Other PS1 stuff == |
| | 154 | |
| | 155 | * skyprobe - sees everything that ps1 sees, but with a smaller less sensitive camera (this is good for bright stars) - filters grizy |
| | 156 | * UIP - sees everything that ps1 sees, but in u band (Not yet) |
| | 157 | * spectroscopic sky probe (ask John Tonry) |
| | 158 | |
| | 159 | |
| | 160 | |
