Box MS-006 Box 1

This collection consists of the papers of T.S.G. Sastry, a scientist who made significant contributions to the field of space research in India. Sastry was also one of the earliest PhD students at the Physics Research Laboratory in Ahmedabad, working under Vikram Sarabhai.

This collection consists of the papers of T.S.G. Sastry, a scientist who made significant contributions to the field of space research in India. Sastry was also one of the earliest PhD students at the Physics Research Laboratory in Ahmedabad, working under Vikram Sarabhai.

This collection consists of the papers of T.S.G. Sastry, a scientist who made significant contributions to the field of space research in India. Sastry was also one of the earliest PhD students at the Physics Research Laboratory in Ahmedabad, working under Vikram Sarabhai.

This collection consists of the papers of T.S.G. Sastry, a scientist who made significant contributions to the field of space research in India. Sastry was also one of the earliest PhD students at the Physics Research Laboratory in Ahmedabad, working under Vikram Sarabhai.

To Ian Axford, editor of J.G.R. at University of California San Diego, regarding comments of referees on his paper.

From the Director of the National Commission for Aerospace Research and Development (CONIDA), expressing interest to build a co-operative program between Peru and India on magnetometers.

From Burrows. Requests for a meeting in Paris or London with Sastry during his upcoming symposia visits; Re: Joint publication of Sastry, Burrows, Sampath and MJ Usher on storm time electrojet and the process of its publication.

The letters from 1968 between Cahill and Sastry concern Sastry's contributions to the survey conducted by the Rocket Research Committee of the Space Science Board of the National Academy of Sciences. The letters from 1969 from Sastry concern preliminary results of the three magnetometer flights in 1968 and a request for a reference from Cahill. The letters from 1970 include a letter of reference sent to S P Pandya at the Physical Research Laboratory.

From Cain at NASA forwarding and requesting reprints of papers; Letters from Cain in 1967 express interest in collaborating on experiments to obtain magnetic field data near the equator.

Initial letters from 1977 concern requests and forwards of bibliographic material regarding Sastry's payloads and rockets. Letter of December 1977 mentions Calderon's attempts to get in touch with the Indian Ambassador in Lima regarding possibilities of national co-operation. Letter from April 1978 provides an update with regards to diplomatic matters and has requests relating to details on proton precession magnetometers.

To Sastry, recounting time spent in India with Sastry at Thumba.

To Ciarrocca at Imperial College, recalling meeting in the UK and expressing interest in the work of Rubidium magnetometers at Ciarrocca's lab and the need to source parts from the UK.

To Dayal at the Imperial College, recalling a meeting in London and the visit to Silwood farms/ Mr. Ciarrocca to learn about rubidium magnetometers.

To Dolginov, USSR Academy of Sciences, sending publications and requesting for low altitude satellite data for passes over the equator near Thumba.

To Sastry, requesting copies of papers presented at the COSPAR meeting in Philadelphia; To Fries, explaining discrepancies in data in one of the papers on near simultaneous measurement of electric field and current density in equatorial electrojet.

To Sastry, acknowledging Sastry's condolence letter for the passing of Professor Tohmatsu.

To Gnanalingam, Ceylon Institute of Scientific and Industrial Research, recalling his trip to Colombo for the Commonwealth Space Committee meeting and mentions forwarding booklets on rocket and balloon studies published by INCOSPAR including facilities available at Thumba.

To Hurtwitz, at the US Coastal and Geodetic Survey, requesting for coefficients to calculate components of magnetic fields at Thumba. Letter from Sastry updates him about the experiments at Thumba that had used the coefficient calculations.

To Krivsky, Czechoslovak Academy of Sciences, acknowledging receipt of a copy of "Solar Proton Flares and their prediction".

To Jones, NASA HQ, requesting for assistance during Sastry's short visit to the Goddard Space Flight Center to understand rubidium magnetometer techniques; Includes Jone's affirmative response.

Postcard to Sastry from Boulder Laboratories, National Bureau of Standards, requesting for a re-print of the paper titled "Magnetic Exploration of Equatorial Ionosphere at the Thumba Rocket Launching Station."

To Manneback at the Royal Academy of Sciences, Letters and Arts, Belgium, with results of Magnetometer flights from Thumba, regarding Exploration of Equatorial Electrojet at Thumba, India. Response to Sastry thanking him for results, and recalling a visit to Ahmedabad; mentions Professor Ramanathan.

The first handwritten letter is from Marshall, post his trip from Trivandrum, mentions Cahill, Anderson and flight data from Thumba, mentions Peru flights; The second letter from Sastry recounts his trip to laboratories in London.

To Sastry from NASA, advising the use of Goddard coefficients for calculations and the 64-4 flight as reference.

This folder contains copies of the same letters sent by Sastry to colleagues mentioned in the title, these were originally attached together and have been retained in that manner. The letters regard a request for comments on S. Sampath's thesis on the Equatorial electrojet.

This is a copy of a letter by Asoka Mendis and Hannes Alfven at the University of California to the Bundesministerium für Bildung und Forschung (BMBF) West Germany, endorsing a cometary flyby mission by the Federal Ministry for Research and Technology. Sastry was presumably sent a copy of this letter due to prior connections with Mendis and because of the use of magnetometers in cometary research.

To Mishin, sending reprints of data communicated in Space Research, Volume X and the Postdam Report.

Postcard announcing the death of Professor Sydney Chapman on 16th June, 1970.

From Obayashi, University of Tokyo, accepting a request to be referee for Sampath's Ph.D thesis.

From Ogawa, Kyoto University, thanking him for a copy of Sampath's thesis and sending a copy of a different thesis on atom-photon interactions

From Ogawa, Kyoto University, confirming the approval for the balloon experiment in collaboration with Rastogi, enclosed with the letter is a diagram of electric field antenna with rotating motor and nylon line extender.

To Orr, at University of York, regarding an unsuccessful proposal to start micropulsation work in the region of the equatorial electrojet, mentions existing USSR study station by Trotskeya's, mentions visit to Burrows. Attached to the letter is a short, handwritten note by Orr.

To Osborne, University of Tanzania, regarding absence from IAGA Conference on Equatorial Electrojet, mentions progress made in flying magnetometer payloads at Thumba, and the Commonwealth Scientists conference in February 1968, to discuss Synoptic Rocket Programme.

To Overton, Imperial College, regarding visit to the lab and discussing work his and Ciarrocca's work, mentions reprints of work done on proton magnetometers.

To Potter, University of New Hampshire, recalling a conference in London and a visit to the labs connected to Imperial College.

The first letter to Ramakrishnan in Freiburg, Germany, provides an update regarding Sastry's work and his trip to London and Paris to collect results of e-field experiments. Also mentions K.R Ramanathan and Sastry's visit to Konstanz. The second handwritten letter from Ramakrishnan is a response to the previous letter where he recalls his trip to Norway.

Postcard to Sastry, informing him about the acceptance of the manuscript entitled "Depth of Non-conducting layer in the Indian Ocean Region Around Thumba, derived from "insitu Investigation of the Equatorial Electrojet" for publication in the Journal of Geomagnetism and Geoelectricity.

To Roederer, University of Denver, responding to a circular soliciting comments and suggestions for the International Association of Geomagnetism and Aeronomy (IAGA); circular attached to the letter.

To Ulrich at Institut fur Geophysik, recalling their meeting and mentions forwarding of a copy of Sampath's thesis.

To Somayajulu, at Goddard Space Flight Centre, NASA, regarding blueprints sent by him, includes Sastry's proposal for two new projects on rubidium vapour magnetometers and electric field measurements.

To Masahisa, at Goddard Space Flight Center, acknowledging his paper on the equatorial electrojet and requesting for calculated values of field due to the electrojet and Jensen and Cain coefficients. Masahisa responds to Sastry mentioning Cain's letter with the values of magnetic field calculated for Thumba with the Jensen-Cain coefficients.

From Usher at the University of Reading, acknowledging Mr. Mazumdar's upcoming visit to the UK and his recent paper using the vector rubidium instrument.

To Vanyan, at Soviet Geophysical Committee at Moscow, recalling their recent meeting at Potsdam, mentions details about Sastry's work at PRL.

To Zaitava, State University at Leningrad, U.S.S.R, with a note on papers sent regarding the variations in geomagnetic field at Indian stations under the equatorial electrojet.

To the Passport Office, requesting for a new passport to Sastry to attend the London COSPAR Conference.

A document outlining Sastry's tour to Paris, Washington, Durham and London from 4th June to 27th June.

Letter from the Committee on Space Research (COSPAR) to Sastry informing him that the abstract of "Quiet Day Electrojet over Thumba" has not been received in time for the London conference.

Telegram from Praful Bhavsar at PRL to Jacquest Blamont and Bignier informing them of Sastry's intention to meet with scientists conducting experiments with magnetometers on June 5-10th, 1967.

Telegram confirms a subsistence allowance from NASA for Sastry's visit to the Goddard Space Flight Centre.

Letter from IQSY/INCOSPAR Assemblies confirming Sastry's accomodation at the Halls of Residence at Imperial College, London.

Telegram from Blamont to Bhavsar, with details of Sastry's meetings with scientists; Bhavsar's telegram requests for Sastry's accommodation.

Letter to Sastry, copied to Vikram Sarabhai, regarding the schedule for presentation over their paper "Diurnal change of parameters of Equatorial Electrojet as Observed by Rocket-borne Magnetometers."

Letter mentions URSI symposium on Measuring Techniques for Low Magnetic Fields in Space Research and Geophysics in Paris, May 20-23rd, 1969.

Letter from W. Kertz inviting Sastry to give a lecture on Magnetic Field Measurements Using Rocket Borne Magnetometers.

Memorandum details coverage of expenses for Sastry.

Letter details change of accomodation for Sastry's stay in Prague.

Letter from S.R Thakore, Administrative officer at PRL to Reserve Bank of India, requesting for currency in the form of pounds for Sastry's visit to the UK.

Tour programme consists of dates of departure from Ahmedabad, Bombay, Prague, Paris, London and Hannover.

Second announcement for the International Symposium on Solar Regular Daily Magnetic Variations at Potsdam, GDR.

The first letter from Sastry to PRL requests permission to attend the symposium. The second letter to Fanselau encloses a preliminary registration form with the abstract of paper attached to letter. The final letter from Fanselau acknowledges receipt of the abstract and confirms Sastry's lecture at Potsdam during the symposium.

The file contains further correspondence with Fanselau from Sastry and S.R Thakore regarding the possibility of German Academy of Sciences bearing living expenses for Sastry for his visit to Potsdam