Work on the joint NASA-Japan Aerospace Exploration Agency (JAXA) Astro-H mission could be slowed as a result of the earthquake and subsequent tsunami that devastated parts of northern Japan in March, according to NASA Astrophysics Division chief Jon Morse.

โ€œVarious facilities experienced different levels of damage, and โ€ฆ there is the infrastructure that was disrupted, and of course some places were very hard hit,โ€ Morse said during an April 7 conference call with members of the NASA Advisory Councilโ€™s astrophysics subcommittee.

Astro-H is the sixth in a series of X-ray astronomy missions developed by JAXA. It was expected to launch on a Japanese H-2A launch vehicle from Japanโ€™s Tanegashima Space Center in 2013, carrying the NASA-built Soft X-Ray Spectrometer, a $44 million telescope in development at NASAโ€™s Goddard Space Flight Center in Greenbelt, Md.

Morse said the Soft X-Ray Spectrometer team members are โ€œracing to try to beat their delivery dates on a number of items in the near-term,โ€ including completion of engineering units that will be integrated and tested in Japan prior to launch, which Morse said is now slated for early 2014. He said the X-ray telescope is scheduled to undergo a critical design review, a programmatic milestone in which a systemโ€™s design is finalized, in late June.

Morse is expected to meet with his JAXA counterparts at the end of April to discuss the path forward on Astro-H, with additional discussions planned later this summer, he told the subcommittee.

โ€œAt this time JAXA has asked NASA to maintain our existing schedule and interfaces, and we hope that Astro-H moves forward unabated but we have to be prepared for some possible adjustments that they may need to make,โ€ Morse said.