Author Topic: HySIS & 30 foreign small sats - PSLV C43- FLP - November 29, 2018 (04:27 UTC)  (Read 20486 times)

Offline TheVarun

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https://www.isro.gov.in/pslv-c43-hysis-mission/pslv-c43-hysis-mission-press-kit

 ISRO has put out information about the mission, including the 30 satellite co passengers to the main satellite HySIS.

4 first time customers, Australia, Colombia, Spain and Malaysia

Offline worldtimedate

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HySIS and 30 other small foreign satellites will be launched by PSLV C43 on Thursday, November 29, 2018 at 04:29:00 AM UTC [ Thursday, November 29, 2018 at 09:59:00 AM IST ].

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Talking to TOI, Isro chairman K Sivan said, "We are going to launch HySIS at 9.59 am on November 29 from Sriharikota. Over 30 foreign satellites, including nano and mini satellites, will also be launched along with the main payload. Out of the 30 commercial satellites, 23 are from the US."

Source : Isro to launch hyperspectral imaging sat with 30 foreign satellites on Nov 29

Offline worldtimedate

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More info on ISRO HySis to be launched by PSLV C43 on November 29 from toi and deccan herald newspapers.

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The satellite, which can see in 55 spectral or colour bands from 630 km above the ground, will be used for a range of applications like agriculture, forestry and assessment of coastal zones, inland waters, soil and other geological environments. Being an earth observation satellite, HySIS will also be used by the military for surveillance purpose. The optical imaging detector array chip in the HySIS satellite has been designed by Isro's Ahmedabad-based Space Applications Centre and manufactured by its electronic arm, Semi-Conductor Laboratory, Chandigarh.

The hyspex technology is still an evolving science and has become a new global trend. Hyperspectral imaging combines the power of digital imaging and spectroscopy. It collects and processes information from across the electromagnetic spectrum. Hyspex imaging enables distinct identification of objects, material or processes on the Earth by reading the spectrum for each pixel of a scene from space.

Source : Isro to launch hyperspectral imaging sat with 30 foreign satellites on Nov 29

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HySIS carries two payloads in visible and near infrared regions of the electromagnetic spectrum. This earth observing imaging spectrometer will operate in the 0.4 to 0.95Ám spectral range, will have 55 spectral bands with 10 nanometre spectral sampling and 30 metre spatial sampling. Push-broom scanning mode is the operating mode of this sensor from a 630-km orbit. According to Isro officials, 1000 X 66 pixels were designed to be readout, from both top and bottom directions, using four analog video ports to meet the frame rate requirement.

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Metal strapping was used for swiftly transferring integrated charges from image to storage region, in order to reduce image smear. Designs (both at chip and package levels) went through detailed review, before clearing for mask making and package fabrication, by a team consisting of members from Isro's SCL (Semiconductor Laboratory) and SAC (Satellite Application Centre).

HySIS spacecrafts carries the Hyper Spectral Compact Imaging in VNIR (Visible and Near Infrared) and SWIR (Shortwave Infrared) spatial region in 60 and 256 contiguous spectral bands respectively, with 10 nm bandwidth providing 30m spatial resolution and covering a swath of 30 km at 630 km orbit.

Source : Hyperspectral Imaging Satellite to be launched on November 29

Offline worldtimedate

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ISRO Develops Optical Imaging Detector Array for Hyperspectral Imaging Applications
https://www.isro.gov.in/isro-develops-optical-imaging-detector-array-hyperspectral-imaging-applications

Offline K210

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Screenshots of brochure + brochure pdf attached for convenience

Offline russianhalo117

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According to the previous and latest mission kits it appears that C43 is the first flight of the Higher Performance HPS3 stage which replaces the standard PS3 stage as part of the overall PSLV Higher Performance Project (PSLV-HP).
« Last Edit: 11/27/2018 03:00 am by russianhalo117 »

Offline K210

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According to the previous and latest mission kits it appears that C43 is the first flight of the Higher Performance HPS3 stage which replaces the standard PS3 stage as part of the overall PSLV Higher Performance Project (PSLV-HP).

No that is incorrect. The High Performance PS3 (HPS3) has been around since PSLV C4/METSAT mission back in 2002.

https://www.isro.gov.in/sites/default/files/flipping_book/PSLV-C4/HTML/files/assets/basic-html/page-1.html
https://www.isro.gov.in/50th-high-performance-motor-case-hps3-third-stage-of-pslv-realised

Offline K210

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Screenshots of updated mission brochure + PDF attached

 

Offline russianhalo117

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According to the previous and latest mission kits it appears that C43 is the first flight of the Higher Performance HPS3 stage which replaces the standard PS3 stage as part of the overall PSLV Higher Performance Project (PSLV-HP).

No that is incorrect. The High Performance PS3 (HPS3) has been around since PSLV C4/METSAT mission back in 2002.

https://www.isro.gov.in/sites/default/files/flipping_book/PSLV-C4/HTML/files/assets/basic-html/page-1.html
https://www.isro.gov.in/50th-high-performance-motor-case-hps3-third-stage-of-pslv-realised
Then why have the mission kits just started writing HPS3 after using PS3 the last few years.

Offline worldtimedate

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PSLV-C43 lift off time is rescheduled to 09.58 Hrs IST on 29th November, 2018. Countdown will commence from 05.58 Hrs IST on 28th November, 2018

https://www.isro.gov.in/update/27-nov-2018/pslv-c43-lift-time-rescheduled-to-0958-hrs-ist-29th-november-2018-countdown-will

https://twitter.com/isro/status/1067385334889992192?p=v
« Last Edit: 11/27/2018 11:19 pm by worldtimedate »

Offline K210

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According to the previous and latest mission kits it appears that C43 is the first flight of the Higher Performance HPS3 stage which replaces the standard PS3 stage as part of the overall PSLV Higher Performance Project (PSLV-HP).

No that is incorrect. The High Performance PS3 (HPS3) has been around since PSLV C4/METSAT mission back in 2002.

https://www.isro.gov.in/sites/default/files/flipping_book/PSLV-C4/HTML/files/assets/basic-html/page-1.html
https://www.isro.gov.in/50th-high-performance-motor-case-hps3-third-stage-of-pslv-realised
Then why have the mission kits just started writing HPS3 after using PS3 the last few years.

PS3 is to reference the third stage of PSLV and HPS3 is the actual version of PS3 currently in use. But yes i agree it would be less confusing if they just use HPS3 all the time.

Offline K210

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« Last Edit: 11/27/2018 11:37 pm by K210 »

Offline worldtimedate

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28 hours countdown for the launch of PSLV-C43/HysIS mission started today at 05:58 Hrs IST from Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota. The launch is scheduled at 09:58 Hrs IST on 29th November 2018 [ Wednesday, November 28, 2018 at 23:28:00 PM
EST ]

https://www.isro.gov.in/update/28-nov-2018/countdown-launch-of-pslv-c43-hysis-mission-started-today-0558-hrs-ist-satish

https://twitter.com/isro/status/1067385334889992192?p=v

Offline worldtimedate

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We are less than 21 hours away for the PSLV C43 to lift off to launch HySis and 30 other foreign satellites.

The Fuel filling of PSLV C43 Fourth Stage ( PS4 ) has been completed.
https://www.isro.gov.in/update/28-nov-2018/pslv-c43-hysis-mission-fuel-filling-of-ps4-stage-fourth-stage-completed

Offline K210

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Offline worldtimedate

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Doordarshan [ http://www.youtube.com/DoordarshanNational ] will webcast the launch of PSLV C43 Mission from 9:30 AM IST on November 29th.

https://twitter.com/DDNational/status/1067653170019647489?p=v

Offline TheVarun

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^^

Really like and appreciate those curtain raisers they have before each mission!  Some of the best they've had are the previews of RISAT-1, Mangalyaan MOM and the GSLV Mark 3 D1.   In this video, the narrator made a little error, I think( dumb non technical layman here :-[)   He said the PSLV fourth stage has a 'cluster' of two liquid engines. I don't think that's correct. The stage has a twin liquid engine configuration, whereas the first stage of the GSLV Mark 3 has a cluster of two Vikas type liquid engines. I do know there's a difference ;D.  K210, mind giving a very brief definition of clustering?  Just a one time thing :)

Offline worldtimedate

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Offline maint1234

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The paint used on the external body , is it a special type of paint or the normal paint with industry practise of 1 coat of red oxide and 2 coats of paint ?
Any harm in just giving a coat of red oxide to save labour and money ? Every little bit helps , the competition is heating up.
« Last Edit: 11/29/2018 01:58 am by maint1234 »

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