Search Help
Atmospheric Drag Density Data from AD-A, AD-B, and AD-C
Entry ID: AD-ABC

Abstract: This experiment was designed to determine nonsystematic changes of upper
atmospheric density by conducting studies of the drag on a 3.6-m diameter,
low-density sphere caused by short-term variations in solar activity. Density
values near perigee were deduced from sequential observations of the spacecraft
position using optical (Baker-Nunn camera network) and radio/radar tracking
techniques. The ... View entire text
Geographic Coverage
Spatial coordinates   
  N: 90.0   S: -90.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: NASA/GSFC/NSSDC
Dataset Title: Atmospheric Drag Density Data from AD-A, AD-B, and AD-C
Version: Not provided
Online Resource:
Temporal Coverage
Start Date: 1963-12-19
Stop Date: 1973-01-13
Ancillary Keywords
Data Center
National Space Science Data Center Coordinated Archive, Space Science Data Operation Office, Goddard Space Flight Center, NASA Supplemental Info
Data Center URL:

Data Center Personnel
Email: nssdc-request at
Contact Address:
National Space Science Data Center
NSSDC/Code 633.4
NASA/Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 1970-01-01
Last DIF Revision Date: 2018-08-29