Accurate Time and Frequency Comparisons
Using GPS Phase and Code Measurements
Date From Subject
--------- ------------------ --------------------------------------------------
06-Jan-98 J Ray, C Thomas IGS/BIPM Project for Time and Frequency Comparisons
06-Jan-98 T Quinn IGS/BIPM Pilot Project
05-Jan-98 K Larson Response to Call for Participation
06-Jan-98 J Levine Response to Call for Participation
19-Jan-98 W Klepczynski TWSTFT Working Group - Study Group on GPS Carrier Phase
21-Jan-98 U.S. Naval Obs. Response to Call for Participation
22-Jan-98 P Banerjee Response to Call for Participation
06-Feb-98 R Beard Response to Call for Participation
18-Feb-98 Y Machehin Response to Call for Participation
19-Feb-98 J Palacio Response to Call for Participation
20-Feb-98 P Defraigne Response to Call for Participation
24-Feb-98 P Banerjee Response to Call for Participation
26-Feb-98 K Jaldehag Response to Call for Participation
26-Feb-98 M V Golovnia Response to Call for Participation
26-Feb-98 G Petit Response to Call for Participation
26-Feb-98 J A Davis Response to Call for Participation
27-Feb-98 J Ray IGS/BIPM Project for Time and Frequency Comparisons -- reminder
02-Mar-98 F Messina Response to Call for Participation
03-Mar-98 A Niell Response to Call for Participation
03-Mar-98 H M Peng Response to Call for Participation
06-Mar-98 J Hahn Response to Call for Participation
06-Mar-98 I Kardos Response to Call for Participation
06-Mar-98 P Uhrich Response to Call for Participation
07-Mar-98 V Tatarenkov Response to Call for Participation
09-Mar-98 K-Y Tu Response to Call for Participation
09-Mar-98 E da Fonseca Junior Response to Call for Participation
09-Mar-98 S Bedrich Response to Call for Participation
10-Mar-98 J Zumberge Response to Call for Participation
13-Mar-98 J Luck Response to Call for Participation
13-Mar-98 Y S Song Response to Call for Participation
13-Mar-98 J Nawrocki Response to Call for Participation
13-Mar-98 S B Bisnath Response to Call for Participation
13-Mar-98 Th Schildknecht Response to Call for Participation
16-Mar-98 W Schlueter Response to Call for Participation
16-Mar-98 M C Santos Response to Call for Participation
16-Mar-98 A Chen Response to Call for Participation
17-Mar-98 F Cordara Response to Call for Participation
18-Mar-98 J Ray, C Thomas Circular 1 -- Welcome
20-Mar-98 C Thomas Message to time laboratories
20-Mar-98 C Thomas, J Ray Circular 2 -- Summary of responses from CfP
27-Mar-98 C Thomas, J Ray Circular 3 -- Meeting announcement
07-Apr-98 B Schupler Timing receivers at VLBI stations & GPS week rollover
13-Apr-98 K Hurst GIPSY classes
20-Apr-98 J Ray new AMCT site at Falcon Air Force Base
20-May-98 M Chin, et al. Test of RINEX Option to Remove a Receiver Clock Offset
05-Jun-98 C Thomas, J Ray Circular 4 -- Meeting agenda
09-Jun-98 K Larson Special session at PTTI
03-Jul-98 D Kirchner Response to Call for Participation
07-Jul-98 C Noll IGS Network Systems Workshop
08-Jul-98 J Ray Larson & Levine paper available
09-Jul-98 C Thomas, J Ray Circular 5 -- Report of the 1st meeting
10-Jul-98 J Ray PTTI meeting announcements
10-Jul-98 J Ray proposed format to exchange clock data
17-Jul-98 J Ray IGS/BIPM Web addresses requested
20-Jul-98 J Ray, W Gurtner revised format for clock data
22-Jul-98 J Ray clock glitches & planned changes at AMCT
23-Jul-98 J Ray Clock Resets at USNO -- Comparison of 1 pps Data
with Geodetic Analysis
28-Jul-98 L Young Re: Clock Resets at USNO
27-Jul-98 J Ray changes planned at USNO
31-Jul-98 W Lewandowski Time laboratories equipped with GLONASS
27-Aug-98 J Ray Evaluation of 12 August changes at USNO
27-Aug-98 J Ray Format to exchange clock data -- Initial version
28-Aug-98 J Ray Clock Format -- CORRECTION
28-Aug-98 J Ray USNO cable specs -- CORRECTIONS
10-Sep-98 K Larson Larson & Levine preprint available
13-Sep-98 C Noll IGS Network Systems Workshop
24-Sep-98 S Poushkin new GPS+GLONASS receiver installations
21-Oct-98 J Ray PTTI program -- carrier phase sessions
22-Oct-98 J Ray USNO clock solution results
23-Oct-98 J Ray IGS clock analysis plan
13-Nov-98 J Ray Pilot Project meeting at PTTI
16-Nov-98 A Crawford Response to Call for Participation
17-Nov-98 T Springer, et al. TurboRogue Ionosphere Problem
01-Dec-98 J Ray Circular 6 -- Report of 2nd meeting
03-Dec-98 J Ray 1 pps monitor problems at AMC2 & USNO
04-Dec-98 D Matsakis GeTT results available
28-Dec-98 K Larson PTTI paper and new results
31-Dec-98 J Ray Effect of satellite antenna offsets on clocks
25-Jan-99 J Ray Cable spec information
26-Jan-99 J Ray "Fiducial" clock sites
28-Jan-99 C Bruyninx PTTI paper available
09-Feb-99 J Ray RF cable specs
11-Feb-99 D Stowers more cable info
03-Mar-99 J Ray EFTF + IFCS session on GPS
03-Mar-99 J Ray possible meeting in December ?
04-Mar-99 J Zumberge, H Kunze TurboRogue L2 tracking update
05-Mar-99 J Ray Colocated common view calibration method
09-Mar-99 J Ray Discontinuities in clock estimates at day boundaries
22-Mar-99 Y Bock, T Springer IGS Analysis Center Workshop
23-Mar-99 J Ray Clock combination progress report
23-Mar-99 J Ray Update of clock RINEX format
09-Apr-99 J Ray IGS/BIPM report to CCTF
09-May-99 Y Bock, T Springer IGS Analysis Center Workshop - 2nd Circular
17-May-99 Y Bock, T Springer IGS Analysis Center Workshop - 3rd Circular
18-May-99 J Ray et al. proposals for handling non-Rogue data
11-Jun-99 B Wilson New broadcast Tgd values as of 29 April 1999
15-Jun-99 J Ray mod to clock file format
16-Jun-99 J Ray et al. mixing receiver types
17-Jun-99 J Palacio New Station: ROAH
17-Jun-99 J Ray Multipath & Clock Discontinuities
23-Jun-99 J Ray Javad test data available
24-Jun-99 J Ray et al. handling mixed receiver types
29-Jun-99 D Dong workaround of the Turbo Rogue L2 tracking problem
08-Jul-99 T Springer, Y Bock IGS Workshop Summary
13-Jul-99 J Ray et al. Evaluation report for Javad receiver
14-Jul-99 J Ray Javad test to be repeated
28-Jul-99 J Clarke phase discontinuities at NPLC (R100 receiver)
30-Jul-99 K Larson Larson & Levine IEEE Transactions paper available
31-Jul-99 J Ray use of prediced GPS orbits
30-Aug-99 J Ray Javad test 2 data available
07-Oct-99 J Ray, G Petit no IGS/BIPM meeting in December
24-Jan-00 J Ray new IGS clock combination
27-Jan-00 A Tkachuk report on tests using Trimble 4000SSI receivers
28-Jan-00 T Springer IGS clocks
08-Feb-00 A Tkachuk SRIM Report
09-Feb-00 J Johansson plans in Sweden for Boras & Onsala
07-Mar-00 J Ray IGS Workshop in September
14-Mar-00 J Ray Analysis Workshop -- 2nd Announcement
15-Mar-00 J Ray new IGS pseudorange bias convention
28-Mar-00 J Clarke NPL JPS receiver test
30-Mar-00 K Larson IEEE reprints available
31-Mar-00 G Petit EFTF'2000 paper on differential calibration of Z12-T
02-May-00 J Ray Presidential statement on ending SA
05-May-00 J Kouba IGS orbit/clock navigation & sat. clock interpolations
with no SA
09-May-00 J Ray effects of no SA
09-May-00 S Schaer Monitoring (P1-C1) code biases
24-May-00 G Petit Re-send: EFTF'2000 paper on differential calibration
of Z12-T
09-Jun-00 J Ray new (P1-C1) pseudorange bias corrections
15-Jun-00 J Ray, K Senior temperature sensitivity of D-M antennas
26-Jun-00 J Ray Analysis Workshop -- 3rd Announcement
28-Jun-00 K Senior new USNO time transfer report
24-Jul-00 P Uhrich GPS RINEX data in the BNM-LPTF
31-Jul-00 J Ray USNO Ultra-rapid clock predictions
02-Aug-00 J Clarke NPL GPS time monitoring service
08-Aug-00 K Senior USNO time transfer report for May
14-Aug-00 J Clarke Interruption to NPLB
16-Aug-00 J Clarke Change from NPLB to NPLD GPS station
16-Aug-00 J Ray Analysis Workshop reminder
07-Sep-00 J Ray IGS/BIPM Workshop update
19-Sep-00 J Ray Analysis Workshop announcements
09-Oct-00 A Moore Ashtech data + smoothing
12-Oct-00 W Gurtner Re: Ashtech data + smoothing
12-Oct-00 D Hogarth Re: Re: Ashtech data + smoothing
13-Oct-00 J Ray, T Springer IGS Analysis Workshop summary
16-Oct-00 K Senior USNO time transfer report for August
17-Oct-00 J Clarke GPS CP timing receiver specs
17-Oct-00 J Ray Re: GPS CP timing receiver specs
20-Oct-00 Th Schildknecht Re: GPS CP timing receiver specs
20-Oct-00 EFTF Invitation to 15th EFTF, 6-8 March 2001
20-Oct-00 M Kogan Ashtech Z12 with ext. freq. standard
22-Oct-00 M Kogan Ashtech Z12 with ext. freq. standard
25-Oct-00 J Ray, M Kogan Ashtech Z12 and clock steering
25-Oct-00 M Kogan Addendum to Ashtech Z12 and clock steering
27-Oct-00 J Clarke Re: GPS CP timing receiver specs, etc.
27-Oct-00 R Wood CLOCK STEERING change for HERS Ashtech Z12
27-Oct-00 I Romero CLOCK STEERING change for KOUR Ashtech Z12
27-Oct-00 M Kogan Re: CLOCK STEERING change for HERS Ashtech Z12
27-Oct-00 K Senior time transfer operations e-mail list
27-Oct-00 R Snow setup procedure for Ashtech Z12 with external frequency
reference (firmware RD00)
01-Nov-00 R Snow setup procedure for Ashtech Z12 with external frequency
reference (firmware CD00)
01-Nov-00 R Wood Corrected CLOCK STEERING for HERS Ashtech Z12
03-Nov-00 T Springer new IGS clock combination
03-Nov-00 T Springer Analysis Center clock problems
09-Nov-00 D Stowers CLOCK STEERING OFF at HRAO, GOLD, TIDB, USUD
10-Nov-00 P Digney CLOCK STEERING ON at JAB1, MAC1
20-Nov-00 J Ray Analysis Workshop proceedings
24-Nov-00 G Hedling CLOCK STEERING for SWEPOS network
06-Dec-00 P Wiklung CLOCK STEERING OFF at ONSA
26-Dec-00 J Ray proposed (P1-C1) bias update
02-Jan-01 J Ray, R Snow Ashtech receiver info
02-Jan-01 T Clark questions concerning USNO monitor data for GPS time
03-Jan-01 L Schmidt Re: questions concerning USNO monitor data for GPS time
05-Jan-01 J Ray updated (P1-C1) pseudorange bias corrections
17-Jan-01 A Moore proposed new IGS site log
26-Jan-01 J Clarke New UK NPL station (NPLD)
31-Jan-01 J Ray Ultra-rapid clocks
15-Feb-01 J Ray satellite antenna offsets
23-Feb-01 S Schaer CODE DCB data archive initiated
05-Mar-01 J Ray updated (P1-C1) biases and cc2noncc
13-Mar-01 J Clarke New NPLF GPS+GLONASS station
15-Mar-01 P Defraigne preprints for two papers available
16-Mar-01 M Morrison measured phase patterns for TSA-100 antenna
19-Mar-01 J Ray cc2noncc.f updated for Trimble 4700 receiver
20-Mar-01 G Weber (fwd) GPS III Questionnaire
26-Mar-01 C Bruyninx BRUS restarted with Ashtech Z-XII3T receiver
08-May-01 J Ray IGS Analysis Center Workshop proceedings
16-May-01 G Mader BLK II A antenna calibration
21-May-01 G Mader BLK II A antenna calibration (corrected)
22-May-01 J Ray status of IGS Ultra-rapid clock predictions
30-May-01 J Ray cc2noncc.f update
03-Jul-01 K Larson 5 MHz -> 20 MHz multiplier ?
05-Jul-01 various Re: 5 MHz -> 20 MHz multiplier ?
09-Jul-01 G Petit BIPM Ashtech Z12T calibration trip
09-Jul-01 G Petit EFTF preprint available
09-Jul-01 J Ray report to the CCTF
19-Jul-01 J McLefresh Trimble's GPS timing kit available
23-Jul-01 W Lewandowski CGGTTS guidelines for receivers
25-Jul-01 J Ray IGS fiducial clock sites
25-Jul-01 M Heflin Re: IGS fiducial clock sites
31-Jul-01 R Langley Recommendations for distribution amplifiers
31-Jul-01 J Ray Re: Recommendations for distribution amplifiers
06-Aug-01 J Ray USNO clock densification
06-Aug-01 J Ray temperature sensitivity of D-M antennas
14-Aug-01 J Ray a more stable IGS time scale
16-Aug-01 J Ray, K Senior new clock products available
16-Aug-01 J Ray station performance feedback from IGS clocks
24-Aug-01 R Snow setup procedure for Ashtech Z-Surveyor with external frequency
reference (firmware ZB00)
08-Nov-01 J Ray new IGS stations at time labs
28-Nov-01 K Senior updated IGS time scale
03-Dec-01 J Ray PTTI accuracy paper available
31-Dec-01 J Ray IGS clocks for VLBI
03-Jan-02 J Ray Status of IGS clocks
07-Jan-02 P Defraigne PTTI preprint available
08-Jan-02 J Ray updated (P1-C1) biases and cc2noncc
13-Feb-02 J Ray C1/P1 biases for Leica and Trimble 5700 receivers
14-Feb-02 A Sauer Ashtech Z12-T info
15-Feb-02 K Senior IGS timescales updated
22-Feb-02 A Moore TurboRogue L2 tracking
19-Mar-02 R Stoeger Ashtech Model Z-12 Metronome installed at PTB
03-Apr-02 J Ray more Rapid station clocks from USNO