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10,000 year old remnant of size approximately 6 degrees diameter. Several hundred counts/sec in PSPC and kT 0.13 keV. Contains an X-ray pulsar embedded in an extended synchrotron nebula. X-ray pulsations are found only in the lowest PSPC channels (below 0.85 keV). The spectrum of the pulsar is complex, with an underlying power-law of , a black body from the pulsar, and thermal emission from the SNR. The synchrotron nebula has a power-law of also. The column density to the pulsar is very low ( cm ).
Pulsar is 2 UFU with a power-law spectrum. There is a 1' nebula surrounding the pulsar.