South Ecliptic Pole (SEP) Mosaics

1. Single Band Mosaics

Below are links to JPEGs of mosaics at eight different bands, all mapped onto a common footprint. The size of the footprint is 1.5 × 1.5 deg2 centered at the SEP: R.A. = 90.0°, Dec = -66.5607° (J2000.0); galactic coordinates: l = 276.3840°, b = -29.8112°. Its orientation (CROTA2) is 287.79297°, chosen to be the average orientation of MIPS scans from Director's Discretionary Time (DDT) observations. The pixel scale is 1″ throughout. All coordinate grid overlays are in the ecliptic system.

Mosaics were made exclusively using modules proposed for the WISE Science Data processing System (WSDS): Bmatch for background (offset) matching; AWOD for temporal outlier detection and masking; AWAIC for frame co-addition. For the 2MASS mosaics, outlier masking was omitted due to insufficient depth-of-covarage, but throughput (gain) matching was performed to get all inputs on the same photometric calibration scale. IRAC and MIPS mosaics have pixel units of MJy/sr, while 2MASS mosaics are in counts (DN/pixel) with the photometric zeropoint (in magnitudes) given by MAGZP in their FITS headers. Please contact the author for actual FITS data.

  1. Combined 2MASS Atlas Images in J, H, K from nominal survey:

    2. • Coverage Map
    • J_Mosaic
    • H_Mosaic
    • K_Mosaic

  2. Spitzer-IRAC bands 1, 2, 3, 4 (3.6μm, 4.5μm, 5.8μm, 8μm respectively). Combines data from DDT observations (two epochs) and from the SAGE Legacy project. Warning: the median depth is ~4 frames, and hence outlier rejection may not have been reliable in some regions.

    3. • Coverage Map
    • Ch1_Mosaic
    • Ch2_Mosaic
    • Ch3_Mosaic
    • Ch4_Mosaic

  3. Spitzer-MIPS band 1 (24μm). Combines data from DDT observations and from the SAGE Legacy project.

    4. • Coverage Map
    • MIPS24μm_Mosaic

2. Multicolor Combinations

• J(blue)_H(green)_K(red)_Mosaic

• ZOOM_J(blue)_H(green)_K(red)_Mosaic

• J(blue)_3.6μm(green)_8μm(red)_Mosaic

• ZOOM_J(blue)_3.6μm(green)_8μm(red)_Mosaic

• 4.5μm(blue)_8μm(green)_24μm(red)_Mosaic

• ZOOM_4.5μm(blue)_8μm(green)_24μm(red)_Mosaic

Last update - 15 July 2008
F. Masci - IPAC