4e4a5d3d5d
Remove old center_name, target_name from Kepler
2020-06-10 12:05:16 -04:00
9a313a3b23
Remove names from VectorFunction init signature
...
This is a rare backwards compatibility break, risked only because
`VectorFunction` initialization never been documented, and because a
search of GitHub revealed not projects that were instantiating it
directly. Eliminating the need to define and copy these two strings
from object to object makes the code more tractable, especially as I get
Kepler orbits closer to production status. The attributes ``center``
and ``target`` themselves will now, when needed, be strings explaining
what celestial bodies are involved.
2020-06-10 11:45:05 -04:00
165a3e0778
Alleviate a pyflakes complaint
2020-06-10 11:39:51 -04:00
87e25119ef
Replace "target_name" attribute with property
2020-06-10 11:34:04 -04:00
0a130da692
Replace "center_name" attribute with property
2020-06-10 11:19:31 -04:00
35bb3c8254
Add test of how vector addition stringifies
2020-06-10 07:31:16 -04:00
41868b906f
Center comet orbits on the Sun
2020-06-10 07:24:27 -04:00
e32048ea41
Replace bare assert with exception and explanation
2020-06-10 07:21:08 -04:00
caf31286b6
Remove comments and extraneous code from script
2020-06-10 06:17:09 -04:00
156280ac01
Catch fairly successful match for MPC ephemeris
...
Temporary file, now to be cleaned up and turned into a real feature and
test. Committed to the repository so that I don’t lose the achievement
as I start moving the code around!
2020-06-10 06:01:55 -04:00
a9823d9d02
Slight cleanup of a test while working on Kepler
2020-06-10 05:58:49 -04:00
142d4af6d0
Fix #377 by adding an Earth occultation method
2020-06-09 06:24:59 -04:00
7f04a897e7
For future reference: HORIZONS position of Chiron
2020-06-08 16:07:18 -04:00
3113fd48b1
Add sample Type 21 ephemeris SPK file
2020-06-08 15:06:35 -04:00
a14c07ef4e
Remove out-of-date comment
2020-06-08 15:06:09 -04:00
1ffe62d978
Import `T0` from the module it actually lives in
2020-06-08 12:00:54 -04:00
e62b0ca093
Update CHANGELOG and declare version 1.22
2020-06-08 10:46:59 -04:00
7a7d7e7eaa
Remove an import that pyflakes noted was unused
2020-06-08 10:15:44 -04:00
e03adc488b
Hide precision difference between x86 and CI
2020-06-08 10:07:00 -04:00
55431a7702
Use new routines to get maxima/minima working well
2020-06-08 05:41:07 -04:00
a42f67c86f
Low-level routine to identify maximum with plateau
2020-06-08 04:57:31 -04:00
1180767250
Fix use of a too-recent NumPy feature
2020-06-07 22:39:07 -04:00
c06e5297f6
Start rebuilding maxima-finding logic, with tests
...
Attempting to write documentation for my maxima finder revealed how
fragile it is, so let’s rebuild, and this time start atop very careful
tests. We’ll see how it goes.
2020-06-07 21:59:51 -04:00
ca0c5fd645
Stop using the Greek letter Δ when I really mean ∆
2020-06-07 17:43:17 -04:00
eda5feac32
Hide Time._nutation_angles_radians for now
...
I have still not settled on the API for offering alternative nutation
routines, so hiding this gives me the freedom to release later today
without making a public API commitment yet.
2020-06-07 17:09:13 -04:00
d1108c547f
Improve precisions of calendar TT and TAI times
2020-06-07 15:06:15 -04:00
ecbd5d5cff
Add JD fraction to TAI constructor, tdb_minus_tt()
...
And along the way, start simplifying docstrings that look a bit redundant.
2020-06-07 13:38:29 -04:00
cf836d095c
Move divmod responsibility from Time to Timescale
2020-06-07 13:10:03 -04:00
fea2a3c49d
A further dangling pyflakes complaint
2020-06-07 13:02:56 -04:00
a6fa806131
Now that pyflakes runs in CI, fix its complaints
2020-06-07 12:57:47 -04:00
6c00986974
Another tweak to try to get Travis to run pyflakes
2020-06-07 12:45:29 -04:00
d0700c8cc5
Try to debug CI
2020-06-07 12:31:24 -04:00
352f0c6122
Better approach for keeping TDB fraction precision
2020-06-07 12:12:51 -04:00
4f1bd9a64d
Fix how time equality calls time subtraction
2020-06-07 11:55:34 -04:00
d450a38a12
Try adding pyflakes to CI
2020-06-07 11:50:04 -04:00
47c0de9446
Complete a few timelib TODOs related to precision
2020-06-07 11:47:06 -04:00
ccdfdba649
Bring Time attribute documentation up to date
...
Also, add methods by which users can ask for the nutation and precession
matrices in case they are doing low-level operations.
2020-06-07 11:12:12 -04:00
b3cfd26d0d
Stop caching the t.P and t.N matrices
...
These 3×3 matrices consume 72 bytes of memory for each element in a time
vector, yet are never used by Skyfield once it has built the matrix M.
2020-06-07 06:25:43 -04:00
6340e0f5f1
Fix #386 by updating jplephem version requirement
2020-06-07 06:13:27 -04:00
834a0ea998
Make Angle arc methods immune to “hours” warning
2020-06-06 14:06:04 -04:00
57f5ba6a1b
Move nutation angle attributes to correct section
2020-06-06 12:17:45 -04:00
82b6eefe4c
Remove old wonky _earth_tilt attribute
2020-06-06 12:12:30 -04:00
6be8e0937e
Switch how users select IAU 2000B nutation angles
...
But also provide support for the old pattern.
2020-06-06 12:03:08 -04:00
9feac69a09
Remove a few dangling unused imports
2020-06-06 11:08:22 -04:00
21175f3ad9
Another round of simplification thanks to radians
2020-06-06 11:06:26 -04:00
b892bc007a
Switch new build_nutation_matrix() to radian args
...
This eliminates conversions in both the caller and the function itself.
2020-06-06 10:45:44 -04:00
20f0af7b36
Switch to caching nutation angles as radians
2020-06-06 10:43:17 -04:00
82a60a95e1
Cache mean obliquity in radians, not arcseconds
...
This is the first step towards caching all nutation-related angles in
radians, to minimize the amount of post-processing necessary when they
are used.
2020-06-06 10:38:50 -04:00
7d2aa41341
Try new t.nutation_angles_arcseconds angle pair
2020-06-05 22:16:57 -04:00
240789d1cc
Break compute_nutation() free of _earth_tilt
2020-06-05 21:54:50 -04:00
Brandon Rhodes