Todd Deckard
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Todd Deckard's Discussions

HP41 ASTRO*ROM documentation

Started this discussion. Last reply by CHARLIE B. AYCOCK, III Oct 18, 2017. 7 Replies

Greetings, is there any online documentation for the HP41 ASTRO*ROM package from Elgin, Knowles & Senne?I recently acquired one to entertain my navigation math hobby.  I am not a surveyor and…Read more →

Subject Tags: documentation, ASTRO*ROM, HP41

 

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CHARLIE B. AYCOCK, III replied to Todd Deckard's discussion HP41 ASTRO*ROM documentation
"I don't know anything about the ASTRO ROM but the old HP 41 had a program to calculate azmuths from star shots & sun shots. GPS has added another dimension & made the associated calculations & corrections more complicated but not…"
Oct 18, 2017
Todd Deckard replied to Todd Deckard's discussion HP41 ASTRO*ROM documentation
"diving into "Selected Observations ..."  I had not seen that one.   Thanks!"
Oct 15, 2017
Todd Deckard replied to Todd Deckard's discussion HP41 ASTRO*ROM documentation
"Excellent link.  I am very familiar with Warren's database.  If you check out my HP41 ROM SLANTR, its a collection of routines to update an airman's ded reckoning position and refine it with radio fixes.  Perhaps not…"
Oct 15, 2017
Billy Brooks replied to Todd Deckard's discussion HP41 ASTRO*ROM documentation
"Hi Todd, You can join hp 41.org to see anything HP 41. Warren Furlow runs it,tons of info on the HP41. There have been several discussion here,  on Sun and Star shots,mine I discuss using a Hp 41 CX and programming for it. I also started a HP…"
Oct 15, 2017
Bernie J. Marocco replied to Todd Deckard's discussion HP41 ASTRO*ROM documentation
"Hi Todd; Here's an archive link giving a synopsis and technical notes to one of BLM's Training manuals 'Selected Computations of Astronomical Observations'  circa 1971. The document is archived at the…"
Oct 14, 2017
Todd Deckard replied to Todd Deckard's discussion HP41 ASTRO*ROM documentation
"Greetings Bernie, Excellent suggestion. I did reach out to them via the website earlier and just now received a response from Dr. Elgin offering to send me a copy by post!  I will ask him if I may digitize it to share it electronically. …"
Oct 14, 2017
Bernie J. Marocco replied to Todd Deckard's discussion HP41 ASTRO*ROM documentation
"Greetings Todd; Have you tried contacting Elgin, Knowles, and Senne Inc. in Rolla, MO? I checked their 'Previous Software Products'  tab at their web site and was not able to find a link to their early software manuals. In…"
Oct 14, 2017
Todd Deckard posted a discussion

HP41 ASTRO*ROM documentation

Greetings, is there any online documentation for the HP41 ASTRO*ROM package from Elgin, Knowles & Senne?I recently acquired one to entertain my navigation math hobby.  I am not a surveyor and would not use the application for any practical purpose.  I am intrigued to learn more about old school surveying techniques and look forward to lurking on the forum. Best RegardsTodd DeckardSee More
Oct 14, 2017

Welcome to the Surveying CommunityThis marks the beginning of a surveying legacy for our new Land Surveyors United member, Todd Deckard. Welcome Todd Deckard Your legacy in surveying will forever be remembered starting here. If it weren't for this member, we may have never known surveying culture in their corner of earth.

Oct 8, 2017

Profile Information

I am here because I am a.
Just Curious
Surveyor Bio:
Navigation math is a hobby, I recently procured a vintage ASTRO*ROM for my HP41 and many of the web links in hour angle method link here.

I am not a surveyor but I am self studied in celestial navigation, avigation, and orbital mechanics. My masters work (in robotics) included coordinate transformation mathematics.
Company
NA
Licenses Certifications or Awards
NA
I have experience with the following
GPS, Software Development, Aerial, i am a software developer
How many years have you been surveying?
0
Most comfortable with the following types of instrumentation
GPS

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