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Update “deltat.c” for the years 2012-2018 (#2 #22)

This commit is contained in:
mathar 2021-07-27 13:35:30 +02:00 committed by Brandon Rhodes
parent 89c6a70620
commit 258f7c1918
1 changed files with 5 additions and 5 deletions
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10
libastro/deltat.c
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@ -10,7 +10,7 @@
* from The Astronomical Almanac and current IERS reports.
* A table of values for the pre-telescopic period was taken from
* Morrison and Stephenson (2004). The overall tabulated range is
* -1000.0 through 2011.0. Values at intermediate times are interpolated
* -1000.0 through 2018.0. Values at intermediate times are interpolated
* from the tables.
*
* For dates earlier and later than the tabulated range, the program
@ -47,7 +47,7 @@
#include "astro.h"
#define TABSTART 1620
#define TABEND 2011
#define TABEND 2018
#define TABSIZ (TABEND - TABSTART + 1)
/* Morrison and Stephenson (2004)
@ -73,7 +73,7 @@ short m_s[MS_SIZ] = {
/* Entries prior to 1955 in the following table are from
* the 1984 Astronomical Almanac and assume ndot = -26.0.
* the 2020 Astronomical Almanac and assume ndot = -26.0.
* For dates prior to 1700, the above table is used instead of this one.
*/
short dt[TABSIZ] = {
@ -133,11 +133,11 @@ short dt[TABSIZ] = {
3315, 3359, 3400, 3447, 3503, 3573, 3654, 3743, 3829, 3920,
4018, 4117, 4223, 4337, 4449, 4548, 4646, 4752, 4853, 4959,
/* 1980.0 thru 2011.0 */
/* 1980.0 thru 2018.0 */
5054, 5138, 5217, 5296, 5379, 5434, 5487, 5532, 5582, 5630,
5686, 5757, 5831, 5912, 5998, 6078, 6163, 6230, 6297, 6347,
6383, 6409, 6430, 6447, 6457, 6469, 6485, 6515, 6546, 6578,
6607, 6632,
6607, 6632, 6660, 6691, 6728, 6764, 6810, 6859, 6897,
};