diff --git a/src/too/dump.py b/src/too/dump.py
index 275c9c3..af4e35f 100644
--- a/src/too/dump.py
+++ b/src/too/dump.py
@@ -42,13 +42,15 @@ def dump_to_parquet(
 
     """
 
-    from sdssdb.peewee.sdss5db import catalogdb, opsdb
-
-    path = pathlib.Path(path)
-
     observatory = observatory.upper()
     if observatory not in ["APO", "LCO"]:
         raise ValueError("Invalid observatory.")
+    
+    os.environ["OBSERVATORY"] = observatory.upper()
+
+    from sdssdb.peewee.sdss5db import catalogdb, opsdb
+
+    path = pathlib.Path(path)
 
     # Check that the model connection is the same. This should be the case as
     # long as database has been created using connect_to_database(), which will
@@ -67,6 +69,7 @@ def dump_to_parquet(
 
     opsdb.AssignmentToFocal.bind(database)
     Assn2Focal = opsdb.AssignmentToFocal
+    Configuration = opsdb.Configuration
 
     columns = (
         TooTarget.too_id,
@@ -93,12 +96,13 @@ def dump_to_parquet(
         TooMeta.inertial,
         TooMeta.sky_brightness_mode,
         TooMeta.n_exposures,
+        TooMeta.observe_from_mjd,
     )
 
     targets = (
         TooTarget.select(
             *columns,
-            fn.count(Assn2Focal.catalogid).alias("count"),
+            fn.array_agg(Configuration.epoch).alias("jd"),
         )
         .join(TooMeta, on=(TooMeta.too_id == TooTarget.too_id))
         .switch(TooTarget)
@@ -109,10 +113,17 @@ def dump_to_parquet(
             JOIN.LEFT_OUTER,
             on=(Assn2Focal.catalogid == Catalog.catalogid),
         )
+        .join(Configuration, JOIN.LEFT_OUTER)
         .group_by(*columns)
         .dicts()
     )
 
+    length = 0
+    for t in targets:
+        t["jd"] = [j if j else -1 for j in t["jd"]]
+        if len(t["jd"]) > length:
+            length = len(t["jd"])
+
     dataframe = polars.from_dicts(
         list(targets),
         schema={
@@ -140,15 +151,18 @@ def dump_to_parquet(
             "inertial": polars.Boolean,
             "sky_brightness_mode": polars.String,
             "n_exposures": polars.Int32,
-            "count": polars.Int32,
+            "observe_from_mjd": polars.Int32,
+            "jd": polars.Array(polars.Float32, length),
         },
     )
 
     df_field = match_fields(dataframe, database)
     df_observatory = df_field.filter(polars.col.observatory == observatory)
 
+    hist = dataframe["jd"].to_numpy()
+    start = dataframe["observe_from_mjd"].to_numpy()
+    n_done = [len(numpy.where(h > s)[0]) for h, s in zip(hist, start)]
     n_requested = df_observatory["n_exposures"].to_numpy()
-    n_done = df_observatory["count"].to_numpy()
     elligible = df_observatory.filter(numpy.greater(n_requested, n_done)).sort("too_id")
 
     log.info(f"Found {len(elligible)} targets of {len(targets)} total.")