R1iH bddlZddlZddlmZmZddlmZddlmZeZ dZ dZ dZ d Z y) N)datetime timedelta)Lock) julian_datec|d}tj|d|d}tj||dd|dfgd}|\}}|||fS)N)rrright)sider)axis)np searchsorted concatenate) deltat_data deltat_predsleap_second_dat data_end_timeidelta_t_recent leap_dates leap_offsetss Y/home/cursorai/projects/iching/venv/lib/python3.12/site-packages/skyfield/io_timescale.py_build_legacy_datar sY&M  QWEA^^[,qt2D$EANN.J :| 33ctj|}|j\}}}}tjt ||||fS)zParse the United States Naval Observatory ``deltat.data`` file. Each line file gives the date and the value of Delta T:: 2016 2 1 68.1577 This function returns a 2xN array of raw Julian dates and matching Delta T values. )r loadtxtTarrayr)fileobjryearmonthdaydelta_ts rparse_deltat_datar$sA JJw E %D%g 88[uc2G< ==rct|}t|}|jdr2t|tj|ddgj \}}n&tj|ddgj \}}|j t}d|dzj tdzz}tjt||d|fS)aParse the United States Naval Observatory ``deltat.preds`` file. The old format supplies a floating point year, the value of Delta T, and one or two other fields:: 2015.75 67.97 0.210 0.02 The new format adds a modified Julian day as the first field: 58484.000 2019.00 69.34 -0.152 0.117 This function returns a 2xN array of raw Julian dates and matching Delta T values. sYEARrr)usecolsg(@ ) iternext startswithr rrastypeintrr)rlinesheader year_floatr#r r!s rparse_deltat_predsr1 s ME %[F ! U  jjA?AA G!jjA?AA G   S !D d"**3/"4 4E 88[ua0': ;;rcrt|}|D]}|jdsn td|jd}t5t j t j}t j t jd tj|d}t j t j| dddtd}j|z}tj|j\}}} } } tjt!|d z} d | d <|d z| d dd| d<tjt!|d z} | d x| d <| d <| | d d|| | ffS#t j t j|wxYw#1swYxYw)aParse the IERS file ``Leap_Second.dat``. The leap dates array can be searched with:: index = np.searchsorted(leap_dates, jd, 'right') The resulting index allows (TAI - UTC) to be fetched with:: offset = leap_offsets[index] s# File expires onz.Leap_Second.dat is missing its expiration dateasciiCz# File expires on %d %B %Y N)daysr'z-infrg@OBArr inf)r)r+ ValueErrordecode_locklocale setlocaleLC_ALLrstrptimerdater rrndarraylen)rr.lineoriginal_localedt grace_periodexpiration_datemjdr"r!r offsetsrrs rparse_leap_secondsrI?sz ME ??0 1 IJJ ;;w D  **6==9, =""4)HIB   V]]O < "%Lggi,.O%'ZZ%6%8%8"CeT7CHqL)JJqMYJqJrN::c#hl+L(/ 2LOl1oL Z6 66   V]]O < s%AF-F'$F-&F**F--F6)r;numpyr rr threadingrtimelibrr:rr$r1rIrrrNs/ (  4 ><>)7r