(a) "Notification date." In this section, "notification date" means the earlier of the date on which:
(1) A secured party sends to the debtor and any secondary obligor an authenticated notification of disposition; or
(a) "Notification date." In this section, "notification date" means the earlier of the date on which:
(1) A secured party sends to the debtor and any secondary obligor an authenticated notification of disposition; or