Mark Pottenger is the late Dr. Zipporah Dobyns’s son. He sells an Asteroid program that supplement your main astrology program. The website Serennu.com provides a limited listing for free, but to get all the active asteroids requires a membership of $69.00 per year.
Pottenger’s program version is $100.00 for 20G worth of asteroids that you never have to upgrade unless you are a real asteroid junkie. See information from Mark above, that is a copy of the letter he will send you.
If you contact him let him know we sent you; we could use the exposure. Other than that, we have no financial stake in this enterprise.