Aitoff projection of the sky in J2000 equatorial coordinates showing the 2MASS Tiles observed as of the effective date shown above. A 2MASS survey tile is a 6 degree long by 8.5 arcminute wide strip that runs roughly north-south. The sky has been divided into 59,650 such tiles. All 59,650 survey tiles have now been observed under conditions suitable for catalog quality.

For a more detailed description of 2MASS Sky Coverage, please see the Current 2MASS Sky Coverage page at UMASS. For a description of the 2MASS tile design and Survey strategy, please see the 2MASS Survey Strategy Document . Also see the 2MASS Survey Strategy Web Page at UMASS.

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