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Use chandra_aca's guide_count for the perigee bright star check #343

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May 12, 2020
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Use chandra_aca's guide_count for the perigee bright star check #343

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24 changes: 14 additions & 10 deletions starcheck/src/lib/Ska/Starcheck/Obsid.pm
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Original file line number Diff line number Diff line change
Expand Up @@ -57,9 +57,9 @@ def _yagzag_to_pixels(yag, zag):
return float(row), float(col)


def _guide_count(mags, t_ccd):
def _guide_count(mags, t_ccd, count_9th=False):
eff_t_ccd = get_effective_t_ccd(t_ccd)
return float(guide_count(np.array(mags), eff_t_ccd))
return float(guide_count(np.array(mags), eff_t_ccd, count_9th))

def check_hot_pix(idxs, yags, zags, mags, types, t_ccd, date, dither_y, dither_z):
"""
Expand Down Expand Up @@ -1058,7 +1058,6 @@ sub check_bright_perigee{
#############################################################################################
my $self = shift;
my $radmon = shift;
my $min_mag = 9.0;
my $min_n_stars = 3;

# if this is an OR, just return
Expand Down Expand Up @@ -1098,18 +1097,23 @@ sub check_bright_perigee{
my $c = find_command($self, 'MP_STARCAT');
return if (not defined $c);

# check for at least N bright stars
my @bright_stars = grep { (defined $c->{"TYPE$_"})
and ($c->{"TYPE$_"} =~ /BOT|GUI/)
and ($c->{"GS_MAG$_"} < $min_mag) } (0 .. 16);
my $bright_count = scalar(@bright_stars);
my @mags = ();
for my $i (1 .. 16){
if ($c->{"TYPE$i"} =~ /GUI|BOT/){
my $mag = $c->{"GS_MAG$i"};
push @mags, $mag;
}
}

# Pass 1 to _guide_count as third arg to use the count_9th mode
my $bright_count = _guide_count(\@mags, $self->{ccd_temp}, 1);
if ($bright_count < $min_n_stars){
if ($self->{special_case_er} == 1){
push @{$self->{fyi}}, "Only $bright_count star(s) brighter than $min_mag mag. "
push @{$self->{fyi}}, "Only $bright_count star(s) brighter than scaled 9th mag. "
. "Acceptable for Special Case ER\n";
}
else{
push @{$self->{warn}}, "$bright_count star(s) brighter than $min_mag mag. "
push @{$self->{warn}}, "$bright_count star(s) brighter than scaled 9th mag. "
. "Perigee requires at least $min_n_stars\n";
}

Expand Down