Lowell Observatory Cometary Data Base - Observations

Status: Archived

This volume contains observations made primarily at Lowell observatory using conventional photoelectric photometers over the period August 1976 - October 1991 by A'Hearn and Millis. Narrowband photometry of 85 comets is presented.

• ZIP file of entire volume (92Kb zipped, 552Kb unzipped), for downloading

Catalog Files

Catalog files contain the overview information and parameters used in loading the PDS central catalog, specifically, or for developing other interfaces to the data outside of PDS. The information they contain, particularly in their descriptive text fields, should be clear, complete, and understandable to a research user who is not necessarily a mission or instrument specialist.

These files are located in the catalog/ subdirectory. The directory contents are described by the catinfo.txt file.

• Support Archives Mission File
• Lowell Observatory Instrument Host File
• Photometer Instrument File
• Data Set File
• Comet Target File
• References File

Data Files

The data are presented in three ASCII table files with separate PDS labels:

• Flux measurement (PDS label)
• Observing parameters (PDS label)
• Production rates (PDS label)