WISE Preliminary Release Level 1b Frames

SIA query base URL	<root>/sia/wise/prelim/p1bm_frm
SIA metadata query URL	<root>/sia/wise/prelim/p1bm_frm?FORMAT=METADATA
Query base URL	<root>/search/wise/prelim/p1bm_frm
Column listing	<root>/search/wise/prelim/p1bm_frm?FORMAT=METADATA&ct=html
Browse data	<root>/data/wise/prelim/p1bm_frm/

Overview

The wise/prelim/p1bm_frm catalog contains metadata for WISE Preliminary Release Level 1b frames. Each row in the catalog consists of metadata for a single frame, and is uniquely identified by the scan_id, frame_num, and band columns. This page documents the URL structure of the WISE Preliminary Release Level 1b Frames, and how one goes about mapping the results of a query like <root>/search/wise/prelim/p1bm_frm?POS=70,20 to associated data product URLs.

Data Products

Intensity FITS images
Uncertainty FITS images
Mask FITS images
Positions of spurious sources from diffraction spikes and halos
Positions of spurious sources from optical ghosts
Positions of spurious sources from latents

Generating URLs for data products

WISE Preliminary Release Level 1b data product URLs are built using the values of the scangrp, scan_id, frame_num, and band columns. Note that the last 2 characters of a scan_id yields the corresponding scangrp, so the latter column is not strictly necessary when building URLs.

Note: MD5 checksums for all data products are stored. Checksum URLs are obtained by simply appending ".md5" to the data product URL.

Intensity FITS images

These are located at:

<server><root>/data/wise/prelim/p1bm_frm/{scangrp:s}/{scan_id:s}/{frame_num:03d}/{scan_id:s}{frame_num:03d}-w{band:1d}-int-1b.fits

Examples:

By appending center and size parameters (e.g <root>/data/wise/prelim/p1bm_frm/6a/02206a/149/02206a149-w1-int-1b.fits?center=70,20&size=200pix), one can also download cutouts (see the detailed documentation).

Python code to build a URL:

params = { 'scan_id': '02206a',
           'frame_num': 149,
           'band': 3,
         }
params['scangrp'] = params['scan_id'][-2:]
path = str.format(
    '{scangrp:s}/{scan_id:s}/{frame_num:03d}/{scan_id:s}{frame_num:03d}-w{band:1d}-int-1b.fits',
    **params)
url = 'serverroot/data/wise/prelim/p1bm_frm/' + path

C code to build a URL:

char url[256];
const char *scan_id = "02206a";
const char *server = "serverroot";
int frame_num = 149;
int band = 3;
snprintf(url, sizeof(url),
         "%s/data/wise/prelim/p1bm_frm/%s/%s/%03d/%s%03d-w%1d-int-1b.fits",
         server, scan_id + (strlen(scan_id) - 2), scan_id, frame_num,
         scan_id, frame_num, band);

Java code to build a URL:

String scan_id = "02206a";
String server = "serverroot";
int frame_num = 149;
int band = 3;
String url = String.format("%1$s/data/wise/prelim/p1bm_frm/%2$s/%3$s/%4$03d/%3$s%4$03d-w%5$1d-int-1b.fits",
                           server, scan_id.substring(scan_id.length() - 2), scan_id, frame_num, band);

Uncertainty FITS images

These are located at:

<server><root>/data/wise/prelim/p1bm_frm/{scangrp:s}/{scan_id:s}/{frame_num:03d}/{scan_id:s}{frame_num:03d}-w{band:1d}-unc-1b.fits.gz

Examples:

Append center and size parameters to these URLs to download a cutout instead of a full image (see the cutouts documentation).