2. Twenty years ago IRAS gave us what is still our best view of the mid  infrared sky.

3. WISE will map the entire sky with resolution comparable to the few square degrees shown here, achieving 500 times better sensitivity than IRAS.

4. WISE Sensitivity

5. WISE will be launched into a Sun-synchronous orbit in late 2009

6. WISE will have an 11-second data-taking exposure cycle synchronized with the orbit to provide total sky coverage with overlap between orbits in 6 months following launch. There will be 8 or more exposures at each position over more than 99% of the sky.

7. WISE will survey the sky in two near infrared channels: 3.3 and 4.7 μ m

8. WISE will survey the sky in two mid-infrared channels: 12 and 23 μ m

9. Galactic Science with WISE

10. WISE will detect most of the Main Belt asteroids larger than 3 km, providing reliable thermal IR diameters for them.

11. A simulated composite WISE image demonstrates how the motion of an asteroid will be easily detected Blue: 4.7 μm Green: 12 μm Red: 23 μm

12. Known Stars within 25 light-years

13. WISE Stars within 25 light-years

14. WISE will find the coolest and closest stars to the Sun

16. Extragalactic Science with WISE SDSS z = 6.3 Quasar Ultra-Luminous IR Galaxy (L bol = 5 x 10 13 L  at z = 3) L* Galaxy at z=0.35

17. The WISE survey will reach to z ~ 0.5 2MASS Large Scale Structure to z ~ 0.1

18. WISE will find the most luminous galaxies in the Universe: Ultra-luminous Infrared Galaxies (ULIRGs)

29. Reaction Wheel SCA MEB DEB RW Electronics IMU Reaction Wheels Magnetometer FEB Battery Panel S-Band Transceiver

37. Payload Status Engineering Unit electronics built and tested Engineering Unit beam splitter built and tested

38. Payload Status: Cryostat All primary and secondary tank parts are fabricated. Assembly underway Primary Tank Secondary Tank

39. Focal Planes 1024 2 Si:As Detector 1024 2 HgCdTe Detector in Focal Plane Mount Assembly Focal Plane Electronics BoxTest Station

40. Payload Status: Optics All flight mirrors completed, alignment underway Engineering model scanner fully tested, meets all requirements See Schwalm et al Poster 164.03 for additional information

41. The WISE End-to-End Optical System with Embedded Scanner

42. The Optics Separate into Two Independent Modules: The Aft Optics & Fore-Optics The Aft Optics module includes the scanner, a fold-flat, and a five mirror imager design. It also supports the Beamsplitter Assembly. The Afocal Fore-Optics module includes a five-mirror imager plus a fold mirror. It attaches to the WISE cryostat, and supports the Aft Optics

43. Aft Optics Module, Including Scanner

44. The Aft Optics Fit-Check (Structure Not Yet Painted) Scanner Beamsplitters & focal plane mount here

45. The Primary Mirror Mounted to the Fore-Optics Structure. (The Circular Ring Simulates the Cryostat Interface)

46. Back View of the Afocal Telescope and Structure

47. WISE End-to-End Optical System

48. WISE Telescope Note: the M2 and M1 baffle cones were not installed at time of photo

49. WISE Telescope

50. WISE will use a scan mirror to stabilize the line- of-sight while the spacecraft scans the sky.