007 | X1_experiment_plan (Wfrd circular) | A.E. Niell | 20071113 |
008 | Using the DBE1 and Mk5B+ with merged IF0 and IF1 (geodesy) | A.E. Niell | 20080609 |
013 | Spurious Signals at MV3 | A.Niell | 20080511 |
014 | Spurious Signal test in DBEI | A.Niell | 20080611 |
015 | Results of Westford Dewar Y Factor Measurements | C. Beaudoin et al. | 20080425 |
016 | GGAO Receive Chain Component Configuration Considerations | C. Beaudoin | 20080502 |
017 | Modification to NASA/Honeywell pcal for 5 MHz repetition rate | A.E.E. Rogers | 20080625 |
018 | GPIB over Ethernet capability, system temperature, and LNA status at MV3 | C. Beaudoin | 20080708 |
019 | Preliminary analysis of correlator data from 2008 May 23 GGAO-Westford BBD test | B. Corey | 20080608 |
020 | Modulation during first hour of 2008 May 23 GGAO-Westford BBD test | B. Corey | 20080610 |
021 | Phase cal performance during 2008 May 23 GGAO-Westford BBD test | B. Corey | 20080612 |
022 | Addendum to June 10 memo on Modulation during first hour of 2008 May 23 GGAO-Westford BBD test | B. Corey | 20080615 |
023 | Updated: Preliminary test of new digital phase calibrator | A.E.E. Rogers | 20151015 |
024 | New scripts and utilities for DBE1 setup and diagnostics | C.Beudoin | 20080827 |
025 | Check of Symmetricom buffers | A.E.E. Rogers | 20090223 |
026 | Phasecal processing | A.E.E. Rogers | 20090303 |
028 | Measurement of Westford Broadband focus setting using VLBI | A.E. Niell | 20090217 |
029 | Brief report on Integration and Automation Workshop Haystack Observatory 2009 Feb 23-25 | A.E. Niell | 20090312 |
030 | Results for 2009/049 polarization session – 1: First look at amps, phase differences, and delays | A.E. Niell | 20090312 |
031 | Notes on phase cal extraction, power levels, total rail count, and SNR | C.J. Beaudoin | 20090423 |
032 | Phase Cal Channel-to-Channel Phase Discontinuities | C.J. Beaudoin | 20090423 |
033 | Holographic Processing and Considerations for VLBI2010 Antenna Diagnostics | C.J. Beaudoin | 20090715 |
034 | Phase Cal Amplitude RF Frequency Dependence | C.J. Beaudoin | 20090423 |
035 | Temperature coefficient of optical fiber | A.E.E. Rogers | 20091203 |
036 | VLBI Digital-Backend Intercomparison Testing | A.R. Whitney | 20090525 |
037 | MOBLAS7 and NG SLR Radar Power Level Measurements Collected at GGAO | C.J. Beaudoin, S. Cappallo | 20110601 |
038 | Computation of saturation overhead improvement in active stages with incorporation of broadband equalization | C.J. Beaudoin | 20120227 |
039 | 12m Optical Alignment Procedure | C.J. Beaudoin | 20130328 |
040 | Calibration of switched noise diode and measurement of antenna efficiency | A.E. Niell | 20151102 |
041.2 | SX Observations using Broadband Receiver and RDBE: Revised frequencies | A.E. Niell, R.J. Cappallo | 20160218 |
042 | Failure and repair of the GGAO broadband cryogenics and receiver | G. Rajagopalan, C. Eckert | 20160822 |
043 | KPGO 12m Signal Chain Cryo-con Failure Analysis and Repair | C. Ruszczyk, C. Eckert, J. SooHoo | 20161027 |
044 | VGOS Band and Channel Frequency Configuration | A.E. Niell | 20170627 |
045 | Effect of warm dewar on system temperature and on geodetic results for GGAO-Westford baseline in session vt7254 (2017/09/11) | A.E. Niell | 20171019 |
046 | The effect on VGOS broadband group delay of losing one or more bands: example: vt7170 (2017/06/19) GGAO12M-Westford | A.E. Niell | 20171116 |
047 | Processing the clock break at KOKEE12M in vt7142 (2017/05/22) | A.E. Niell, M. Titus | 20181202 |
048 | Evaluation of a prototype broadband radome as installed on Westford | A.E. Niell | 20180505 |
049.1 | VGOS Correlator Clock Model: Comparison of geodetic results for CONT17 data | A.E. Niell, B. Corey | 20180814 |
050 | Setting correlator clocks for VGOS CONT17 processing | B. Corey, E. Himwich | 20180821 |
051 | Comparison of correlator results from VGOS intensive VI9290 test | J. Barrett et al. | 20200210 |
052 | Degradation of the KOKEE12M cablecal – 2019 April 01 to September 16 | A.E. Niell | 20200425 |
053 | VGOS intensive VI9290 follow-up test | J. Barrett et al. | 20200804 |
054 | Comparison of correlator results from VGOS VO0009 | J. Barrett et al. | 20200210 |
055 | VGOS band SNRs from channel fringe visibilities | B. Corey | 20220419 |
056 | Setting pc_phases_x/y for collocated antennas | A.E. Niell | 20221021 |
057 | Electrical delay measurements along various segments of the VGOS signal chain of the GGAO antenna | G. Rajagopalan | 20221018 |
058 | Enhancing WESTFORD to comply with VGOS slew-rate requirements | A.E. Niell | 20230821 |
059 | Using the proxy cablecal: geodetic impact at GGAO12M | A.E. Niell | 20230804 |
060 | Data reduction for measurements of orientation-dependent phasecal delay at GGAO | B. Corey | 20240227 |
061 | Nine years of monitoring the dependence of the GGAO12m phase calibration delay on antenna orientation | V. Pfeiffer, B. Corey, A. Niell | 20240611 |