diff --git a/nebulosa-astap/src/main/kotlin/nebulosa/astap/plate/solving/AstapPlateSolver.kt b/nebulosa-astap/src/main/kotlin/nebulosa/astap/plate/solving/AstapPlateSolver.kt
index ff2218a9f..ccf844f73 100644
--- a/nebulosa-astap/src/main/kotlin/nebulosa/astap/plate/solving/AstapPlateSolver.kt
+++ b/nebulosa-astap/src/main/kotlin/nebulosa/astap/plate/solving/AstapPlateSolver.kt
@@ -1,6 +1,7 @@
 package nebulosa.astap.plate.solving
 
 import nebulosa.common.process.ProcessExecutor
+import nebulosa.fits.Header
 import nebulosa.fits.NOAOExt
 import nebulosa.fits.Standard
 import nebulosa.imaging.Image
@@ -87,22 +88,23 @@ class AstapPlateSolver(path: Path) : PlateSolver {
                 val width = cdelt1 * dimensions[0].trim().toDouble()
                 val height = cdelt2 * dimensions[1].trim().toDouble()
 
-                val solution = PlateSolution(true, crota2.deg, cdelt2.deg, crval1.deg, crval2.deg, width.deg, height.deg)
-
-                solution.add(Standard.CTYPE1, ctype1)
-                solution.add(Standard.CTYPE2, ctype2)
-                solution.add(Standard.CRPIX1, crpix1)
-                solution.add(Standard.CRPIX2, crpix2)
-                solution.add(Standard.CRVAL1, crval1)
-                solution.add(Standard.CRVAL2, crval2)
-                solution.add(Standard.CDELT1, cdelt1)
-                solution.add(Standard.CDELT2, cdelt2)
-                solution.add(Standard.CROTA1, crota1)
-                solution.add(Standard.CROTA2, crota2)
-                solution.add(NOAOExt.CD1_1, cd11)
-                solution.add(NOAOExt.CD1_2, cd12)
-                solution.add(NOAOExt.CD2_1, cd21)
-                solution.add(NOAOExt.CD2_2, cd22)
+                val header = Header()
+                header.add(Standard.CTYPE1, ctype1)
+                header.add(Standard.CTYPE2, ctype2)
+                header.add(Standard.CRPIX1, crpix1)
+                header.add(Standard.CRPIX2, crpix2)
+                header.add(Standard.CRVAL1, crval1)
+                header.add(Standard.CRVAL2, crval2)
+                header.add(Standard.CDELT1, cdelt1)
+                header.add(Standard.CDELT2, cdelt2)
+                header.add(Standard.CROTA1, crota1)
+                header.add(Standard.CROTA2, crota2)
+                header.add(NOAOExt.CD1_1, cd11)
+                header.add(NOAOExt.CD1_2, cd12)
+                header.add(NOAOExt.CD2_1, cd21)
+                header.add(NOAOExt.CD2_2, cd22)
+
+                val solution = PlateSolution(true, crota2.deg, cdelt2.deg, crval1.deg, crval2.deg, width.deg, height.deg, header = header)
 
                 LOG.info("astap solved. calibration={}", solution)