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- Anil Bhardwaj
- S. V. Mohankumar
- Tirtha Pratim Das
- P. Pradeepkumar
- P. Sreelatha
- B. Sundar
- Amarnath Nandi
- Dinakar Prasad Vajja
- M. B. Dhanya
- Neha Naik
- G. Supriya
- G. Padma Padmanabhan
- Vipin K. Yadav
- A. V. Aliyas
- P. Janardhan
- Santosh Vadawale
- Bhas Bapat
- K. P. Subramanian
- D. Chakrabarty
- Prashant Kumar
- Aveek Sarkar
- Nandita Srivastava
- Govind G. Nampoothiri
- J. K. Abhishek
- K. Subhalakshmi
- Smitha V. Thampi
- Md. Nazeer
- P. T. Lali
- Rosmy John
- Vijay Kumar Sen
- M. Ramprabhu
- A. Ajay Krishna
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Satheesh Thampi, R.
- MENCA experiment aboard India’s Mars Orbiter Mission
Abstract Views :223 |
PDF Views:90
Authors
Anil Bhardwaj
1,
S. V. Mohankumar
1,
Tirtha Pratim Das
1,
P. Pradeepkumar
1,
P. Sreelatha
1,
B. Sundar
1,
Amarnath Nandi
1,
Dinakar Prasad Vajja
1,
M. B. Dhanya
1,
Neha Naik
1,
G. Supriya
1,
R. Satheesh Thampi
1,
G. Padma Padmanabhan
1,
Vipin K. Yadav
1,
A. V. Aliyas
1
Affiliations
1 Vikram Sarabhai Space Centre, Indian Space Research Organisation, Thiruvananthapuram 695 022, IN
1 Vikram Sarabhai Space Centre, Indian Space Research Organisation, Thiruvananthapuram 695 022, IN
Source
Current Science, Vol 109, No 6 (2015), Pagination: 1106-1113Abstract
The Mars Exospheric Neutral Composition Analyser (MENCA) aboard the Indian Mars Orbiter Mission (MOM) is a quadrupole mass spectrometer-based experiment. Making use of the highly elliptical and low inclination (~150°) orbit of MOM, MENCA will conduct in situ measurements of the composition and radial distribution of the Martian neutral exosphere in the 1–300 amu mass range in the equatorial and low latitudes of Mars. The functionality of MENCA has been tested during the Earth-bound and heliocentric phases of MOM before its operation in the Martian orbit. This article describes the scientific objectives, instrument details, design and development, test and evaluation, and calibration of the MENCA instrument.Keywords
Exosphere, Mars Orbiter, mass spectrometer, thermal escape.References
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- Sridharan, R., Ahmed, S. M., Das, T. P., Sreelatha, P., Pradeepkumar, P., Naik, N. and Supriya, G., Direct evidence of water (H2O) in the sunlit lunar ambience from CHACE on MIP of Chandrayaan-1. Planet. Space Sci., 2010, 58, 947–950.
- Sridharan, R., Das, T. P., Ahmed, S. M. and Bhardwaj, Anil, Indicators forlocalized regions of heavier species in the lunar surface fromCHACE on Chandrayaan-1. Curr. Sci., 2013, 105(11), 1470–1472.
- Sridharan, R., Das, T. P., Ahmed, S. M., Supriya, Gogulapati, Bhardwaj, Anil and Kamalakar, J. A., Spatial heterogeneity in the radiogenicactivity of the lunar interior: inferences from CHACE andLLRI on Chandrayaan-1. Adv. Space Res., 2013, 51, 168–178.
- Thampi, S. V., Sridharan, R., Das, T. P., Ahmed, S. M., Kamalakar, J. A. and Bhardwaj, Anil, The spatial distribution of molecular hydrogenin the lunar atmosphere – new results. Planet. Space Sci., 2015, 106, 142–147; http://dx.doi.org/10.1016/j.pss.2014.12.018
- Mars Orbiter Mission environmental level specifications, ISROISAC-MOM-PR-2063. ISRO internal document with restricted access, December 2012.
- Probing the Heliosphere Using in Situ Payloads On-Board Aditya-L1
Abstract Views :214 |
PDF Views:84
Authors
P. Janardhan
1,
Santosh Vadawale
1,
Bhas Bapat
2,
K. P. Subramanian
1,
D. Chakrabarty
1,
Prashant Kumar
1,
Aveek Sarkar
1,
Nandita Srivastava
1,
R. Satheesh Thampi
3,
Vipin K. Yadav
3,
M. B. Dhanya
3,
Govind G. Nampoothiri
3,
J. K. Abhishek
3,
Anil Bhardwaj
1,
K. Subhalakshmi
4
Affiliations
1 Physical Research Laboratory, Ahmedabad 380 009, IN
2 Indian Institute of Science Education and Research, Pashan, Pune 411 008, IN
3 Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram 695 022, IN
4 Laboratory for Electro-Optics Systems, ISRO, Bengaluru 560 058, IN
1 Physical Research Laboratory, Ahmedabad 380 009, IN
2 Indian Institute of Science Education and Research, Pashan, Pune 411 008, IN
3 Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram 695 022, IN
4 Laboratory for Electro-Optics Systems, ISRO, Bengaluru 560 058, IN
Source
Current Science, Vol 113, No 04 (2017), Pagination: 620-624Abstract
Aditya-L1, the first ever Indian scientific space mission dedicated to probe the Sun, our nearest star, is slated for launch by the Indian Space Research Organisation (ISRO) most likely in 2020, the year coinciding with the expected start of the rising phase of solar cycle 25. Of the seven science payloads on-board Aditya-L1, three are in situ instruments, namely the Aditya Solar wind Particle Experiment, the Plasma Analyser Package for Aditya and a magnetometer package. These three payloads will sample heliospheric data from the L1 Lagrangian point of the Sun-Earth system, at a distance of ~1% of the distance to the Sun, along the Sun-Earth line. This is therefore a unique opportunity for the solar physics community to gain a better understanding of the inner heliosphere and predict space weather more accurately.Keywords
Aditya-L1, Heliosphere, Payload, Solar Wind Plasma.References
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- Chandra’s Atmospheric Composition Explorer-2 Onboard Chandrayaan-2 to Study the Lunar Neutral Exosphere
Abstract Views :268 |
PDF Views:83
Authors
Tirtha Pratim Das
1,
Smitha V. Thampi
2,
M. B. Dhanya
2,
Neha Naik
2,
P. Sreelatha
2,
P. Pradeepkumar
2,
G. Padma Padmanabhan
2,
B. Sundar
2,
Dinakar Prasad Vajja
2,
Amarnath Nandi
2,
R. Satheesh Thampi
2,
Vipin K. Yadav
2,
J. K. Abhishek
2,
Md. Nazeer
2,
P. T. Lali
2,
Rosmy John
2,
A. V. Aliyas
2,
Vijay Kumar Sen
2,
M. Ramprabhu
2,
A. Ajay Krishna
2
Affiliations
1 Directorate of Technology Development and Innovation, Department of Space, ISRO Headquarters, Antariksh Bhavan, New BEL Road, Bengaluru 560 094, IN
2 Vikram Sarabhai Space Centre, ISRO, Thiruvananthapuram 695 022, IN
1 Directorate of Technology Development and Innovation, Department of Space, ISRO Headquarters, Antariksh Bhavan, New BEL Road, Bengaluru 560 094, IN
2 Vikram Sarabhai Space Centre, ISRO, Thiruvananthapuram 695 022, IN
Source
Current Science, Vol 118, No 2 (2020), Pagination: 202-209Abstract
The CHandra’s Atmospheric Composition Explorer-2 (CHACE-2) experiment aboard Chandrayaan-2 orbiter will study in situ, the composition of the lunar neutral exosphere in the mass range 1–300 amu with mass resolution of 0.5 amu. It will address the spatial and temporal variations of the lunar exosphere, and examine water vapour as well as heavier species in it. In this article, results of the major characterization and calibration experiments of CHACE-2 are presented, with an outline of the qualification tests for both the payload and ground segment.Keywords
CHACE-2, Chandrayaan-2, Exosphere, Mass Spectrometer.References
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- Sridharan, R., Das, T. P., Ahmed, S. M., Supriya, G., Bhardwaj, A. and Kamalakar, J. A., Spatial heterogeneity in the radiogenic activity of the lunar interior: Inferences from CHACE and LLRI on Chandrayaan-1. Adv. Space Res., 2013, 51, 168–178.
- Thampi, S. V., Sridharan, R., Das, T. P., Ahmed, S. M., Kamalakar, J. A. and Bhardwaj, A., The spatial distribution of molecular hydrogen in the lunar atmosphere – new results. Planet. Space Sci., 2015, 106, 142–147.
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