Observing Program

Master Files

This page has links to all the IVS master files, also known as the multi-agency schedule files. The master files list each VLBI geodetic/astrometric session conducted since 1979. Data from each session in the master files is stored in a corresonding data base and NGS card file in the Data Centers. Format descriptions are provided in the related files .

Year	Master Schedules		Media Master	Intensives	Notes File
	[ASCII file]	[HTML file]	[ASCII file]	[ASCII file]	[ASCII file]
2025	TXT '25	HTML '25	Media '25	Int '25	Notes '25
2024	TXT '24	HTML '24	Media '24	Int '24	Notes '24
2023	TXT '23	HTML '23	Media '23	Int '23	Notes '23
2022	TXT '22	HTML '22	Media '22	Int '22	Notes '22
2021	TXT '21	HTML '21	Media '21	Int '21	Notes '21
2020	TXT '20	HTML '20	Media '20	Int '20	Notes '20
2019	TXT '19	HTML '19	Media '19	Int '19	Notes '19
2018	TXT '18	HTML '18	Media '18	Int '18	Notes '18
2017	TXT '17	HTML '17	Media '17	Int '17	Notes '17
2016	TXT '16	HTML '16	Media '16	Int '16	Notes '16
2015	TXT '15	HTML '15	Media '15	Int '15	Notes '15
2014	TXT '14	HTML '14	Media '14	Int '14	Notes '14
2013	TXT '13	HTML '13	Media '13	Int '13	Notes '13
2012	TXT '12	HTML '12	Media '12	Int '12	Notes '12
2011	TXT '11	HTML '11	Media '11	Int '11	Notes '11
2010	TXT '10	HTML '10	Media '10	Int '10	Notes '10
2009	TXT '09	HTML '09	Media '09	Int '09	Notes '09
2008	TXT '08	HTML '08	Media '08	Int '08	Notes '08
2007	TXT '07	HTML '07	Media '07	Int '07	Notes '07
2006	TXT '06	HTML '06	Media '06	Int '06	Notes '06
2005	TXT '05	HTML '05	Media '05	Int '05	Notes '05
2004	TXT '04	HTML '04	Media '04	Int '04	Notes '04
2003	TXT '03	HTML '03		Int '03	Notes '03
2002	TXT '02	HTML '02		Int '02	Notes '02
2001	TXT '01	HTML '01		Int '01	Notes '01
2000	TXT '00	HTML '00		Int '00	Notes '00
1999	TXT '99	HTML '99		Int '99	Notes '99
1998	TXT '98	HTML '98		Int '98	Notes '98
1997	TXT '97	HTML '97		Int '97	Notes '97
1996	TXT '96			Int '96
1995	TXT '95			Int '95
1994	TXT '94			Int '94
1993	TXT '93			Int '93
1992	TXT '92			Int '92
1991	TXT '91			(in TXT '91)
1990	TXT '90			(in TXT '90)
1989	TXT '89			(in TXT '89)
1988	TXT '88			(in TXT '88)
1987	TXT '87			(in TXT '87)
1986	TXT '86			(in TXT '86)
1985	TXT '85			(in TXT '85)
1984	TXT '84			(in TXT '84)
1983	TXT '83			(in TXT '83)
1982	TXT '82			(in TXT '82)
1981	TXT '81			(in TXT '81)
1980	TXT '80			(in TXT '80)
1979	TXT '79			(in TXT '79)

The master files and control files are maintained by the IVS Coordinating Center. Please contact Cynthia Thomas or Dirk Behrend if you have any questions about the master files.