From d10afca80850fbb16c4d879a4626c3f803680cf7 Mon Sep 17 00:00:00 2001
From: pcain-usgs <pcain@usgs.gov>
Date: Wed, 10 Jun 2020 10:52:28 -0600
Subject: [PATCH] Raise value error with bad timestamp
---
geomagio/algorithm/FilterAlgorithm.py | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/geomagio/algorithm/FilterAlgorithm.py b/geomagio/algorithm/FilterAlgorithm.py
index 5131e5571..5814c22e8 100644
--- a/geomagio/algorithm/FilterAlgorithm.py
+++ b/geomagio/algorithm/FilterAlgorithm.py
@@ -191,6 +191,10 @@ class FilterAlgorithm(Algorithm):
filtered = self.firfilter(trace.data, window, decimation)
stats = Stats(trace.stats)
stats.starttime = stats.starttime + input_sample_period * (numtaps // 2)
+ if stats.starttime.timestamp % output_sample_period != 0:
+ raise ValueError(
+ "Invalid starttime. Filter is not centered in timeseries."
+ )
stats.delta = output_sample_period
stats.npts = len(filtered)
trace_out = self.create_trace(stats.channel, stats, filtered)
--
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