1. SARAS 3 CD/EoR radiometer: design and performance of the receiver

   • Jishnu Nambissan T.
   • Ravi Subrahmanyan
   • Mayuri Sathyanarayana Rao

   Original Article 28 January 2021 Pages: 193 - 234

   

2. An upper limit calculator (UL-CALC) for undetected extended sources with radio interferometers: radio halo upper limits

   • Lijo T. George
   • Ruta Kale
   • Yogesh Wadadekar

   Original Article 01 February 2021 Pages: 235 - 248

   

3. A chemically etched corrugated feedhorn array for D-band CMB observations

   • S. Mandelli
   • E. Manzan
   • M. Zannoni

   Original Article Open access 12 February 2021 Pages: 249 - 272

   

4. A low-cost chopping system and uncooled microbolometer array for ground-based astronomy

   • M. F. Rashman
   • I. A. Steele
   • J. H. Knapen

   Original Article Open access 16 April 2021 Pages: 273 - 286

   

5. ExoSim: the Exoplanet Observation Simulator

   • Subhajit Sarkar
   • Enzo Pascale
   • Ingo Waldmann

   Original Article Open access 05 March 2021 Pages: 287 - 317

   

6. MeerCRAB: MeerLICHT classification of real and bogus transients using deep learning

   • Zafiirah Hosenie
   • Steven Bloemen
   • Patrick Woudt

   Original Article 02 June 2021 Pages: 319 - 344

   

7. Design and development of Mt.Abu faint object spectrograph and camera – Pathfinder (MFOSC-P) for PRL 1.2m Mt. Abu Telescope

   • Mudit K. Srivastava
   • Vipin Kumar
   • S. N. Mathur

   Original Article 08 May 2021 Pages: 345 - 382

   

8. Algorithm for calculating anastigmatic three-mirror telescopes. II. Spherical primary mirror case

   • V. Yu. Terebizh

   Original Article 25 April 2021 Pages: 383 - 389

   

9. Dynamic simulation and parameter fitting method of cometary dust based on machine learning

   • Yuxian Yue
   • Zirui Cao
   • Xiaohui Wang

   Original Article 04 June 2021 Pages: 391 - 424

   

10. Application of a dielectric breakdown induced by high-power lasers for a laboratory simulation of meteor plasma

    • Anna Křivková
    • Lukáš Petera
    • Martin Ferus

    Original Article 01 February 2021 Pages: 425 - 451

    

11. Future perspectives in solar hot plasma observations in the soft X-rays

    • Alain Jody Corso
    • Giulio Del Zanna
    • Vanessa Polito

    Original Article 18 May 2021 Pages: 453 - 474

    

12. A preliminary design of the magnetic diverter on-board the eXTP observatory

    • Liqiang Qi
    • Gang Li
    • Fangjun Lu

    Original Article 09 March 2021 Pages: 475 - 492

    

13. MVN experiment – All sky monitor for measuring cosmic X-ray background of the universe onboard the ISS

    • D. V. Serbinov
    • M. N. Pavlinsky
    • I. Y. Lapshov

    Original Article 13 May 2021 Pages: 493 - 514

    

14. Attitude determination for nano-satellites – I. Spherical projections for large field of view infrasensors

    • Kornél Kapás
    • Tamás Bozóki
    • András Pál

    Original Article 23 April 2021 Pages: 515 - 527

    

15. UVscope and its application aboard the ASTRI-Horn telescope

    • Maria Concetta Maccarone
    • Giovanni La Rosa
    • Giuseppe Sottile

    Original Article Open access 31 March 2021 Pages: 529 - 550