gstreamer - Attempting to determine astronomy values in a parameter file -


recently inherited quite few old quickbasic programs perform various astronomical calculations. i'm attempting understand these programs , rewrite of them in python. not have deep background in astronomy.

a number of programs take parameter file input, year.dat. below 5 years of these files (each column represents 1 file). need in figuring out various data values.

year.dat

year        2001         2008         2009         2010         2011  delta t      66           65           66           66           67  tilt         23.43909     23.43818     23.43805     23.43799     23.43786  dow           1            2            4            5            6  gst           6.71430      6.66860      6.71839      6.702509     6.68659  x1          105.690      330.340      310.959      291.631      272.303  bs           84           90           88           87           86  fs          301          300          298          304          303  x2          357.765      356.959      357.689      357.433      357.177  x3          354.289      193.159      335.720      105.105      234.489  jd      2451910.5    2454466.5    2454832.5    2455197.5    2455562.5

i believe values time dependent 0:00 hours on jan. 1 of year given.

here values think i've figured out:

tilt obilquity of ecliptic dow day of week, monday day 1 bs number of day of year when british summer time (bst) begins fs number of day of year when bst ends jd julian day number (of 0:00 hours jan. 1)

values i'm unsure about:

delta t sort of time delta, don't know gst seems greenwich mean sidereal time, moment? x1, x2, , x3 i'm clueless

here questions:

  1. what might delta t be?
  2. is gst in fact greenwich mean sidereal time? moment?
  3. what x1, x2, , x3? (this low-priority question.)
  4. how can delta t, gst, and, perhaps other values, determined 2018, 2019, ...?

any appreciated.

roger house


-

Comments

Post a Comment

Popular posts from this blog

java - SSE Emitter : Manage timeouts and complete() -

i writing web app multiple listeners(evcentsource sse clients js) connected server . want store sse emitter per connected listener : can done in memory or other means assigning id each client able achieve far now question ; how send response/event specific client connected web app ? while doing sseemmiters stored either getting completed or timed out. how prevent ? how keep sseemmiter available open infinite time (till client closes) , send events selectively .
Read more

jquery - uncaught exception: DataTables Editor - remote hosting of code not allowed -

i'm trying implement crud operation using datatableseditor using datatables.but i'm getting error messages: 1)uncaught exception: datatables editor - remote hosting of code not allowed. please see http://editor.datatables.net details on how purchase editor license 2)typeerror: a.editor undefined 3) $.fn.datatable.editor not constructor" what reason? here configuration: <%@ page language="java" contenttype="text/html; charset=iso-8859-1" pageencoding="iso-8859-1"%> <!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> <title>insert title here</title> <link rel="stylesheet" type="text/css" href="//cdn.datatables.net/1.10.12/css/jquery.datatables.min.css"> <link re...
Read more

java - How to resolve error - package com.squareup.okhttp3 doesn't exist? -

i trying convert json java object use of gson in maven, following youtube video guidance - https://www.youtube.com/watch?v=vqgghm9pwe0 , theres error occurs when in main class error - package com.squareup.okhttp3 doesn't exist. code below: java package com.codebeasty.json; import com.squareup.okhttp3.okhttpclient; public class main { private static okhttpclient client = new okhttpclient(); public static void main (string [] args) { } } i put in dependency in pom.xml: <dependencies> <dependency> <groupid>com.squareup.okhttp3</groupid> <artifactid>okhttp</artifactid> <version>3.4.2</version> </dependency> <dependency> <groupid>com.google.code.gson</groupid> <artifactid>gson</artifactid> <version>2.8.0</version> </dependency> </dependencies> i dont understand why doesn't recognize com.squareup. there may need download? have downl...
Read more