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Diffstat (limited to 'noao/obsutil/src/sptime/abzero.cl')
-rw-r--r--noao/obsutil/src/sptime/abzero.cl10
1 files changed, 10 insertions, 0 deletions
diff --git a/noao/obsutil/src/sptime/abzero.cl b/noao/obsutil/src/sptime/abzero.cl
new file mode 100644
index 00000000..c8b3e76b
--- /dev/null
+++ b/noao/obsutil/src/sptime/abzero.cl
@@ -0,0 +1,10 @@
+procedure abzero (w, logf)
+
+real w {prompt="Wavelength (microns)"}
+real logf {prompt="Log f_lambda (W/cm^2/micron)"}
+
+begin
+ x = 10000 * w
+ y = -2.5 * (logf + 3) - 5 * log10 (x) - 2.4
+ printf ("%d %.3f\n", x, y)
+end