Spectropolarimetry package for visible emission line coronagraph (VELC) on board Aditya-L1 mission

2022 ◽  
Author(s):  
Suresh Venkata ◽  
Raghavendra Prasad B ◽  
Jagdev Singh
Keyword(s):  
Emission Line ◽  
Visible Emission

Visible emission line space solar coronagraph: science and optical design

2013 ◽  
Vol 42 (2) ◽  
pp. 96-100 ◽  
Author(s):  
Jagdev Singh ◽  
Raja Bayanna ◽  
K. Sankarasubramanian
Keyword(s):  
Emission Line ◽  
Optical Design ◽  
Visible Emission ◽  
Line Space

Exploring the outer emission corona spectroscopically by using Visible Emission Line Coronagraph (VELC) on board ADITYA-L1 mission

2019 ◽  
Vol 64 (7) ◽  
pp. 1455-1464
Author(s):  
Jagdev Singh ◽  
B. Raghavendra Prasad ◽  
Suresh Venkata ◽  
Amit Kumar
Keyword(s):  
Emission Line ◽  
Visible Emission

Optical design of visible emission line coronagraph on Indian space solar mission Aditya-L1

2018 ◽  
Vol 45 (2) ◽  
pp. 219-229 ◽  
Author(s):  
N. Raj Kumar ◽  
B. Raghavendra Prasad ◽  
Jagdev Singh ◽  
Suresh Venkata
Keyword(s):  
Emission Line ◽  
Optical Design ◽  
Visible Emission

Scatter studies for visible emission line coronagraph on board ADITYA-L1 mission

2017 ◽  
Vol 3 (1) ◽  
pp. 014002 ◽  
Author(s):  
Suresh N. Venkata ◽  
B. Raghavendra Prasad ◽  
Raj Kumar Nalla ◽  
Jagdev Singh
Keyword(s):  
Emission Line ◽  
Visible Emission

The Inner Coronagraph on Board ADITYA-L1 and Automatic Detection of CMEs

2017 ◽  
Vol 13 (S335) ◽  
pp. 340-343 ◽  
Author(s):  
D. Banerjee ◽  
R. Patel ◽  
V. Pant ◽  
Keyword(s):  
Emission Line ◽  
Coronal Mass Ejections ◽  
Automatic Detection ◽  
Primary Objective ◽  
Field Of View ◽  
Visible Emission ◽  
Spectroscopic Observations

AbstractVisible Emission Line Coronagraph (VELC) on board ADITYA-L1 is an internally occulted coronagraph with mirror as its primary objective element. It has a field of view (FOV) starting from 1.05 R⊙– 3 R⊙. It will observe the corona in continuum centered at 5000 Å and will perform spectroscopic observations of inner corona in two visible (5303 Å and 7892 Å) and one infrared (10747 Å) wavelengths. VELC will be capable of observingthecorona with high spatial and temporal resolutions. We present an overview of the inner coronagraph (VELC) design and introduce the concept of an on-board automated coronal mass ejections (CMEs) detection logic proposed for this payload.

scholarly journals Automated detection of Coronal Mass Ejections in Visible Emission Line Coronagraph (VELC) on-board ADITYA-L1

2018 ◽  
Vol 13 (S340) ◽  
pp. 171-172
Author(s):  
Ritesh Patel ◽  
K. Amareswari ◽  
Vaibhav Pant ◽  
Dipankar Banerjee ◽  
K. Sankarasubramanian
Keyword(s):  
Emission Line ◽  
Coronal Mass Ejections ◽  
Detection Algorithm ◽  
Automated Detection ◽  
Field Of View ◽  
Visible Emission ◽  
Signal To Noise ◽  
Difference Images

AbstractAn onboard automated coronal mass ejections (CMEs) detection algorithm has been developed for Visible Emission Line Coronagraph (VELC) onboard ADITYA-L1. The aim of this algorithm is to reduce the load on telemetry by sending the high spatial (~ 2.51 arcsec pixel−1) and temporal (1 s) resolution images of corona from 1.05 R⊙ to 3 R⊙, containing CMEs and rejecting others. It is based on intensity thresholding followed by an area thresholding in successive running difference images which are re-binned to lower resolution to improve signal to noise. Here we present the results of application of the algorithm on synthetic corona images generated for the VELC field of view (FOV).

Visible Emission Line Coronagraph on Aditya-L1

2017 ◽  
Vol 113 (04) ◽  
pp. 613 ◽  
Author(s):  
B. Raghavendra Prasad ◽  
Dipankar Banerjee ◽  
Jagdev Singh ◽  
S. Nagabhushana ◽  
Amit Kumar ◽  
...  
Keyword(s):  
Emission Line ◽  
Visible Emission

scholarly journals Onboard Automated CME Detection Algorithm for the Visible Emission Line Coronagraph on ADITYA-L1

Solar Physics ◽  
2018 ◽  
Vol 293 (7) ◽  
Author(s):  
Ritesh Patel ◽  
Amareswari K ◽  
Vaibhav Pant ◽  
Dipankar Banerjee ◽  
Sankarasubramanian K. ◽  
...  
Keyword(s):  
Emission Line ◽  
Detection Algorithm ◽  
Visible Emission
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