Search Help
MODIS/Aqua Level 1A and Geolocation Data Products

[ Get Data ]

Abstract: This data set consists of satellite measurements of global data obtained by the
Moderate Resolution Imaging Spectroradiometer (MODIS), in orbit on the Aqua
(formerly EOS PM) platform. Level-1A products contain the raw radiance counts
from all bands as well as unpacked instrument telemetry. Level-1A data are
used as input for geolocation and calibration processing. These products are
used to ... View entire text
Related URL
Description: MODIS/Aqua Level 1A, and Geo-location data for the most-recent days. The files are organized by YYYYDDD in the following subdirectories:
/Quicklook - best-available ancillary data used for GEO and L2.
/Refined - optimal ancillary data used for GEO and L2 -or- 10-day wait period
for optimal data expired.
View entire list
Geographic Coverage
Spatial coordinates   
  N: 90.0   S: -90.0   E: 180.0   W: -180.0

Parent DIF
This description is a member of a collection. The collection is described in

Temporal Coverage
Start Date: 2002-07-04
Data Resolution
Latitude Resolution: 1 km
Longitude Resolution: 1 km
Horizontal Resolution Range: 1 km - < 10 km or approximately .01 degree - < .09 degree
Temporal Resolution: 144 daytime granules per day
Temporal Resolution Range: Daily - < Weekly
Access Constraints None
Use Constraints Publications of research results utilizing these data must acknowledge the
Ocean Biology Processing Group (OBPG) at the NASA Goddard Space Flight Center,
Greenbelt, MD, USA.
Ancillary Keywords
Data Set Progress
Originating Center
Data Center
Ocean Biology Processing Group (OBPG), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA Supplemental Info
Data Center URL:

Data Center Personnel
Phone: (301) 286-9428
Fax: (301) 286-0268
Email: gene.c.feldman at
Contact Address:
Data System Manager
NASA/Goddard Space Flight Center
Mailstop 614.8
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Distribution Media: FTP
Distribution Format: HDF
Email: gsfc-gcmduso at
View entire list
Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2004-05-18
Last DIF Revision Date: 2015-08-25