From db1012b8256726ba6a2cd2ad21bd3c42122bf1e1 Mon Sep 17 00:00:00 2001
From: Niklas Reinhardt <janniklas.reinhardt@aei.mpg.de>
Date: Tue, 4 Oct 2022 10:57:53 +0200
Subject: [PATCH] Correct the default ASD of the TCB timer synchronization
error
---
lisainstrument/instrument.py | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/lisainstrument/instrument.py b/lisainstrument/instrument.py
index 7c030ec..27786fe 100755
--- a/lisainstrument/instrument.py
+++ b/lisainstrument/instrument.py
@@ -88,7 +88,7 @@ class Instrument:
backlink_asds=3E-12, backlink_fknees=2E-3, testmass_asds=2.4E-15, testmass_fknees=0.4E-3,
oms_asds=(6.35E-12, 1.25E-11, 1.42E-12, 3.38E-12, 3.32E-12, 7.90E-12), oms_fknees=2E-3,
# TCB synchronization
- sync_asds=2.2E-3,
+ sync_asds=0.42,
# Tilt-to-length (TTL)
ttl_coeffs='default',
sc_jitter_asds=(5E-9, 5E-9, 5E-9), mosa_jitter_asds=(2E-9, 1e-9), mosa_angles='default',
@@ -154,7 +154,8 @@ class Instrument:
testmass_fknees: dictionary of cutoff frequencies for test-mass noise [Hz]
oms_asds: tuple of dictionaries of amplitude spectral densities for OMS noise [m/sqrt(Hz)],
ordered as (isi_carrier, isi_usb, tmi_carrier, tmi_usb, rfi_carrier, rfi_usb)
- sync_asds: dictionary of amplitude spectral densities for TCB synchronization noise [s/sqrt(Hz)]
+ sync_asds: dictionary of amplitude spectral densities for TCB synchronization noise [s/sqrt(Hz)],
+ the default ASD seems rather high, this is due to the small sampling rate (default 1 / 86400s)
oms_fknees: dictionary of cutoff frequencies for OMS noise
ttl_coeffs: tuple (local_phi, distant_phi, local_eta, distant_eta) of dictionaries of
tilt-to-length coefficients on each MOSA [m/rad], 'default' for a default set of
--
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