European Space Agency

Royal Belgian Institute for Space Aeronomy

FAQs

General Questions:

• G.01 - What is the purpose of the library?
• G.02 - Where to find the UNILIB library and documentation ?
• G.03 - Deprecated.
• G.04 - (OLD) How to install the IRI model?
• G.05 - What are the coordinates and units used ?
• G.06 - How to start using the UNILIB library ?
• G.07 - Does a similar software or library exist ?
• G.08 - How is a drift shell defined ?
• G.09 - How to quickly evaluate the capabilities of the UNILIB library ?
• G.10 - Are the Tsyganenko Models included?

Technical Questions:

• T.01 - How to build the UNILIB library?
• T.02 - (OLD) Why is the object IRIS12 not resolved ?
• T.03 - How to customize the magnetic field model used by the library ?
• T.04 - Why are Roederer’s L* and McIlwain’s L parameters different ?
• T.05 - How to pass correctly the subroutine arguments in IDL ?
• T.06 - What is the precision of the field line tracing algorithm ?
• T.07 - Which subroutines are mandatory?
• T.08 - (OLD) How to link the library in IDL/PV-WAVE ?
• T.09 - (OLD) What about a Linux version of the library ?
• T.10 - (OLD) How to call the library from a Win32 application ?

Reported bugs

Bugs are reported and tracked via UNILIB/TRAC

Historical bugs:

• 26-Aug-97, v1.05, R.01 - Anomalous return of subroutine ud310() with error code -41108

• 27-Aug-97, v1.05, ut985(): Malfunction when field line extended to foot points

• 10-Sep-97, v1.06, R.02 - Erroneous behaviour of most of the external magnetic field models

• 24-Oct-97, v1.07, ut550(): Erroneous behaviour of the coordinate transformations relative to GSM and MAG coordinate systems

• 18-Dec-97, v1.11, R.03 - Malfunction of subroutine uf426()

• 14-Dec-98, v2.00, ul242(): Lack of accuracy for low values of I

• 20-Jan-98, v2.00, ud315() and ud327(): Error in the interpolation algorithm and inaccurate evaluation of the point with the lowest altitude

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UNILIB/trunk/