diff --git a/instances/ipc-2004-satellite/domain.pddl b/instances/ipc-2004-satellite/domain.pddl
new file mode 100644
index 0000000..f82b344
--- /dev/null
+++ b/instances/ipc-2004-satellite/domain.pddl
@@ -0,0 +1,75 @@
+
+(define (domain satellite)
+  (:requirements :strips :equality :typing)
+  (:types satellite direction instrument mode)
+ (:predicates 
+               (on_board ?i - instrument ?s - satellite)
+	       (supports ?i - instrument ?m - mode)
+	       (pointing ?s - satellite ?d - direction)
+	       (power_avail ?s - satellite)
+	       (power_on ?i - instrument)
+	       (calibrated ?i - instrument)
+	       (have_image ?d - direction ?m - mode)
+	       (calibration_target ?i - instrument ?d - direction))
+ 
+ 
+
+  (:action turn_to
+   :parameters (?s - satellite ?d_new - direction ?d_prev - direction)
+   :precondition (and (pointing ?s ?d_prev)
+              )
+   :effect (and  (pointing ?s ?d_new)
+                 (not (pointing ?s ?d_prev))
+           )
+  )
+
+ 
+  (:action switch_on
+   :parameters (?i - instrument ?s - satellite)
+ 
+   :precondition (and (on_board ?i ?s) 
+                      (power_avail ?s)
+                 )
+   :effect (and (power_on ?i)
+                (not (calibrated ?i))
+                (not (power_avail ?s))
+           )
+          
+  )
+
+ 
+  (:action switch_off
+   :parameters (?i - instrument ?s - satellite)
+ 
+   :precondition (and (on_board ?i ?s)
+                      (power_on ?i) 
+                  )
+   :effect (and (not (power_on ?i))
+                (power_avail ?s)
+           )
+  )
+
+  (:action calibrate
+   :parameters (?s - satellite ?i - instrument ?d - direction)
+   :precondition (and (on_board ?i ?s)
+		      (calibration_target ?i ?d)
+                      (pointing ?s ?d)
+                      (power_on ?i)
+                  )
+   :effect (calibrated ?i)
+  )
+
+
+  (:action take_image
+   :parameters (?s - satellite ?d - direction ?i - instrument ?m - mode)
+   :precondition (and (calibrated ?i)
+                      (on_board ?i ?s)
+                      (supports ?i ?m)
+                      (power_on ?i)
+                      (pointing ?s ?d)
+                      (power_on ?i)
+               )
+   :effect (have_image ?d ?m)
+  )
+)
+
diff --git a/instances/ipc-2004-satellite/problem-01.pddl b/instances/ipc-2004-satellite/problem-01.pddl
new file mode 100644
index 0000000..de41c7f
--- /dev/null
+++ b/instances/ipc-2004-satellite/problem-01.pddl
@@ -0,0 +1,30 @@
+(define (problem strips-sat-x-1)
+(:domain satellite)
+(:objects
+	satellite0 - satellite
+	instrument0 - instrument
+	image1 - mode
+	spectrograph2 - mode
+	thermograph0 - mode
+	Star0 - direction
+	GroundStation1 - direction
+	GroundStation2 - direction
+	Phenomenon3 - direction
+	Phenomenon4 - direction
+	Star5 - direction
+	Phenomenon6 - direction
+)
+(:init
+	(supports instrument0 thermograph0)
+	(calibration_target instrument0 GroundStation2)
+	(on_board instrument0 satellite0)
+	(power_avail satellite0)
+	(pointing satellite0 Phenomenon6)
+)
+(:goal (and
+	(have_image Phenomenon4 thermograph0)
+	(have_image Star5 thermograph0)
+	(have_image Phenomenon6 thermograph0)
+))
+
+)
diff --git a/instances/ipc-2004-satellite/problem-02.pddl b/instances/ipc-2004-satellite/problem-02.pddl
new file mode 100644
index 0000000..6b41f02
--- /dev/null
+++ b/instances/ipc-2004-satellite/problem-02.pddl
@@ -0,0 +1,40 @@
+(define (problem strips-sat-x-1)
+(:domain satellite)
+(:objects
+	satellite0 - satellite
+	instrument0 - instrument
+	instrument1 - instrument
+	infrared0 - mode
+	infrared1 - mode
+	image2 - mode
+	GroundStation1 - direction
+	Star0 - direction
+	GroundStation2 - direction
+	Planet3 - direction
+	Planet4 - direction
+	Phenomenon5 - direction
+	Phenomenon6 - direction
+	Star7 - direction
+)
+(:init
+	(supports instrument0 infrared1)
+	(supports instrument0 infrared0)
+	(calibration_target instrument0 Star0)
+	(supports instrument1 image2)
+	(supports instrument1 infrared1)
+	(supports instrument1 infrared0)
+	(calibration_target instrument1 GroundStation2)
+	(on_board instrument0 satellite0)
+	(on_board instrument1 satellite0)
+	(power_avail satellite0)
+	(pointing satellite0 Planet4)
+)
+(:goal (and
+	(have_image Planet3 infrared0)
+	(have_image Planet4 infrared0)
+	(have_image Phenomenon5 image2)
+	(have_image Phenomenon6 infrared0)
+	(have_image Star7 infrared0)
+))
+
+)
diff --git a/instances/ipc-2004-satellite/problem-03.pddl b/instances/ipc-2004-satellite/problem-03.pddl
new file mode 100644
index 0000000..0a26185
--- /dev/null
+++ b/instances/ipc-2004-satellite/problem-03.pddl
@@ -0,0 +1,52 @@
+(define (problem strips-sat-x-1)
+(:domain satellite)
+(:objects
+	satellite0 - satellite
+	instrument0 - instrument
+	instrument1 - instrument
+	instrument2 - instrument
+	satellite1 - satellite
+	instrument3 - instrument
+	image1 - mode
+	infrared0 - mode
+	spectrograph2 - mode
+	Star1 - direction
+	Star2 - direction
+	Star0 - direction
+	Star3 - direction
+	Star4 - direction
+	Phenomenon5 - direction
+	Phenomenon6 - direction
+	Phenomenon7 - direction
+)
+(:init
+	(supports instrument0 spectrograph2)
+	(supports instrument0 infrared0)
+	(calibration_target instrument0 Star1)
+	(supports instrument1 image1)
+	(calibration_target instrument1 Star2)
+	(supports instrument2 infrared0)
+	(supports instrument2 image1)
+	(calibration_target instrument2 Star0)
+	(on_board instrument0 satellite0)
+	(on_board instrument1 satellite0)
+	(on_board instrument2 satellite0)
+	(power_avail satellite0)
+	(pointing satellite0 Star4)
+	(supports instrument3 spectrograph2)
+	(supports instrument3 infrared0)
+	(supports instrument3 image1)
+	(calibration_target instrument3 Star0)
+	(on_board instrument3 satellite1)
+	(power_avail satellite1)
+	(pointing satellite1 Star0)
+)
+(:goal (and
+	(pointing satellite0 Phenomenon5)
+	(have_image Star3 infrared0)
+	(have_image Star4 spectrograph2)
+	(have_image Phenomenon5 spectrograph2)
+	(have_image Phenomenon7 spectrograph2)
+))
+
+)
diff --git a/instances/ipc-2004-satellite/solutions b/instances/ipc-2004-satellite/solutions
new file mode 100644
index 0000000..a44ffac
--- /dev/null
+++ b/instances/ipc-2004-satellite/solutions
@@ -0,0 +1,5 @@
+instance | minimal horizon | #solutions with minimal horizon
+============================================================
+problem-01.pddl | 9 | 12
+problem-02.pddl | 13 | 240
+problem-03.pddl | 11 | 276