From 2ff9c0515cbee02373704bea058ae398732fce99 Mon Sep 17 00:00:00 2001
From: Christopher Rabotin <christopher.rabotin@gmail.com>
Date: Sat, 15 Jun 2024 15:39:42 -0600
Subject: [PATCH] Fix two way measurement

---
 src/od/msr/range_doppler.rs   | 4 ++--
 src/od/simulator/trackdata.rs | 2 --
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/od/msr/range_doppler.rs b/src/od/msr/range_doppler.rs
index b16b1b76..e9f36841 100644
--- a/src/od/msr/range_doppler.rs
+++ b/src/od/msr/range_doppler.rs
@@ -84,8 +84,8 @@ impl RangeDoppler {
             );
         }
 
-        let range_km = (aer_t1.range_km - aer_t0.range_km) * 0.5;
-        let doppler_km_s = (aer_t1.range_rate_km_s - aer_t0.range_rate_km_s) * 0.5;
+        let range_km = (aer_t1.range_km + aer_t0.range_km) * 0.5;
+        let doppler_km_s = (aer_t1.range_rate_km_s + aer_t0.range_rate_km_s) * 0.5;
 
         // Time tagged at the realization of this measurement, i.e. at the end of the integration time.
         let epoch = aer_t1.epoch + timestamp_noise_s * Unit::Second;
diff --git a/src/od/simulator/trackdata.rs b/src/od/simulator/trackdata.rs
index 7572c056..58ed7be8 100644
--- a/src/od/simulator/trackdata.rs
+++ b/src/od/simulator/trackdata.rs
@@ -31,8 +31,6 @@ use crate::md::trajectory::Interpolatable;
 use crate::od::{Measurement, ODError};
 use crate::Orbit;
 
-// TODO(ANISE): TrackignDevice is now FromStr. Does that make sense?!
-
 /// Tracking device simulator.
 pub trait TrackingDeviceSim<MsrIn, Msr>: ConfigRepr
 where