Raytheon had healthy growth expectations for its satellite ground control and software office in Aurora, but the expectations weren’t high enough. Defense budgets and the company’s expansion in satellite-related software development likely makes the Waltham, Massachusetts-based company’s previous projection of adding up to 300 jobs in Aurora conservative. “Honestly, I think that’s a little on the low end,” said David Wajsgras, president of the Raytheon IIS division of which the Aurora office is part.