question about the Objective Analysis Package

[ppthelion]

Dear friends:
Nowadays, I want to use OA program to mapping my own data (mixed layer depth obtained from Argos) to equi-distance grids. I compiled the code downloaded from https://www.myroms.org/index.php?page=oa and generated a executable code, while any of the input data sources in Examples can be run successfully.
I try to construct my hdat-format data following the introduction. But I can not get the right output mainly the time dimensions (its value is 'time=UNLIMITED; // (0 currently)'). In fact, in the file 'param.h', I set 'mday=32', while in the input file 'orig_hdat.in', I set "3 NDAY : number of days to OA. Line below, OADAY(1:NDAY)
5,15,25". So could you give me some suggestions how to solve it?

I also wonder that if there is any detail document about this code or is there a version? For me, I think a matlab code is much easier.
Thanks
pp

ps:
when compile the source code, the input parameters changed as in 'param.h'.
input files are 'orig_hdat.in and orig_hdat.hdat'

data in orig_hdat.hdat :
title = mixed layer depth and entrainment tem/sal
stations = 791
lng_min = 180.008
lng_max = 259.468
lat_min = 2.278
lat_max = 55.826
format = ascii, record interleaving
type = ARGO
fields_01 = TemMLD (meter)
creation_date = 07-Nov-2018
extracted_from = function regional_defition
END
1 1 1 198.6200 19.5680 0.0 1.9077 1.00e-04
0 'ARGO: SSH'
110676
1 1 2 201.3510 49.4460 0.0 1.8610 1.00e-04
0 'ARGO: SSH'
897845
1 1 3 214.8840 45.0460 0.0 1.8535 1.00e-04
0 'ARGO: SSH'
917654