==== Front Innov Aging Innov Aging innovateage Innovation in Aging 2399-5300 Oxford University Press US 10.1093/geroni/igaa057.2081 igaa057.2081 Abstracts Session 5715 (Symposium) AcademicSubjects/SOC02600 Momentary Successful Aging Indicators and Their Short-Term and Long-Term Covariates Tse Dwight 1 Finley Kelsey 2 Vrooman Katherine 2 1 The Chinese University of Hong Kong, Hong Kong, China 2 Claremont Graduate University, Claremont, California, United States 2020 16 12 2020 16 12 2020 4 Suppl 1 Program Abstracts from The GSA 2020 Annual Scientific Meeting “Turning 75: Why Age Matters”614 614 © The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America.2020This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.Abstract Studies on successful aging have conceptualized it as a between-person construct, meaning that people’s aging process is seen as more or less successful than others’ across contexts. This study examines within-person, moment-to-moment successful aging indicators, such as (absence of) physical pain, good physical and cognitive functioning, and active engagement in social and productive activities, and their relations to one-time well-being indicators (affective balance, psychological needs satisfaction, meaning in life, and satisfaction with life) at the time and one year after. Multilevel modeling on experience sampling data revealed that successful aging varied substantially (over 50% total variances) within-person and was positively associated with well-being. This study illustrates the utility of momentary successful aging indicators and advocates for a more nuanced understanding besides a simple classification of older adults undergoing “successful” or “normal” aging processes.