Author Topic: H-IIA-202 F43 - Japanese Data Relay Satellite-1 (JDRS-1) - Nov 29 2020 0725 UTC  (Read 22921 times)

Online zubenelgenubi

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Is there any documentation regarding this satellite or payload?
DRTS-FO > DRTS-2           > JDRS-1
Data relay satellite for IGS >

Would it operate from geostationary orbit, inclined GSO, or an Molniya High Earth Orbit (HEO), like some of the SDS/Quasar satellites do?

I found forum references dating back to here:
Japan launch schedule

2015
JFY 2015 -TBD- DRTS-FO

Changes on Jan. 17th

Along with a data relay satellite for IGS:
Japan launch schedule

2019

?? - H-2A - Data relay satellite for IGS (Under Review)
?? -H-2A- DRTS-2 (Laser comm) (Under Review)

Changes on Nov. 25th

Then the functions of the two satellites are combined:
Japan launch schedule

2019
?? - H-2A - Data relay satellite for IGS including JDRS-1 (Japanese Data Relay Satellite-1) payload (Including Laser comm payload)

Changes on Oct. 7

Currently, our launch schedule lists it launching in JFY 2020, which ends March 31, 2021.
« Last Edit: 11/28/2020 07:30 pm by zubenelgenubi »
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Offline Steven Pietrobon

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Re: Japanese Data Relay Satellite-1 (JDRS-1)?
« Reply #1 on: 09/24/2020 05:53 am »
JAXA launch manifest gives FY2020.

https://global.jaxa.jp/projects/in_progress.html
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Online zubenelgenubi

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I think we have a match?
Cross-post:
Japan to launch a new relay satellite in late October
https://novosti-kosmonavtiki.ru/news/76219/
Google translation
Quote
Japan intends to launch a new relay satellite later this month to replace the Kodama spacecraft that has been in orbit for about 15 years. This was announced on Friday by NHK TV channel.
According to him, the launch of the heavy H-2A launch vehicle with a satellite is scheduled for October 29 from the Tanegashima cosmodrome in the southwestern Kagoshima prefecture.
As the TV channel notes, the new device will be launched into geostationary orbit.
***

Data Relay & Tracking Satellite (DRTS) / Kodama launched in 2002 to a perch in geostationary orbit.
***

Has any of the hardware arrived at Tanegashima?
« Last Edit: 10/05/2020 07:09 pm by zubenelgenubi »
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Offline Josh_from_Canada

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Do we know if this is on an H2A 202 or an H2A 204?
Launches Seen: Atlas V OA-7, Falcon 9 Starlink 6-4, Falcon 9 CRS-28,

Offline russianhalo117

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Do we know if this is on an H2A 202 or an H2A 204?
given the post preceding yours states a Heavy H2A that would imply a 204 or special version.

Online zubenelgenubi

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Japan to launch a new relay satellite in late October
https://novosti-kosmonavtiki.ru/news/76219/
Google translation
Quote
Japan intends to launch a new relay satellite later this month to replace the Kodama spacecraft that has been in orbit for about 15 years. This was announced on Friday by NHK TV channel.
According to him, the launch of the heavy H-2A launch vehicle with a satellite is scheduled for October 29 from the Tanegashima cosmodrome in the southwestern Kagoshima prefecture.
As the TV channel notes, the new device will be launched into geostationary orbit.

Hmm....per local news it's November 29, not October. See the link below which mentions launching on the 29th "next month".
NK got this wrong I think. ::)

https://twitter.com/nhk_news/status/1311903746155180034

Would it operate from geostationary orbit, inclined GSO, or an Molniya High Earth Orbit (HEO), like some of the SDS/Quasar satellites do?
https://www3.nhk.or.jp/news/html/20201002/k10012645071000.html
The brief article says geosynchronous, which could be geostationary, or inclined geosynchronous.
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Offline yoichi

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NVS Live

H-2A Rocket F43 Rollout


Watch the H-2A rocket until to before launch


Launch Live Stream


H-2A Rocket F43 Post launch rebriefing session


Offline otter

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A4786/20 NOTAMN
Q) KZAK/QRDCA//////
A) KZAK B) 2011290729 C) 2011290946
E) THE JAPAN AEROSPACE EXPLORATION AGENCY (JAXA) HAS PLANNED A ROCKET LAUNCH.
DEBRIS FM THIS LAUNCH WILL FALL WI AN AREA DEFINED AS 2600N15530E TO 2714N15520E TO 2535N16123E TO 2421N16102E TO POINT OF ORIGIN.
IN THE INTEREST OF SAFETY ALL NON-PARTICIPATING AIR TFC ARE ADVISED TO AVOID THE NOTAMED AREA.  IFR ACFT UNDER
ATC JURISDICTION SHOULD ANTICIPATE CLEARANCE AROUND THE NOTAMED AREA.
F) SFC G) UNL

Offline yoichi

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https://www.mhi.com/jp/notice/notice_201030.html

Scheduled date of Launch : November 29 (Sun.), 2020
Launch time                    : 16:15 through 18:15 (JST)
Reserved Launch period   : November 30 (Mon.), 2020 through January 31 (Sun.), 2020

Online Galactic Penguin SST

https://www.mhi.com/jp/notice/notice_201030.html

Scheduled date of Launch : November 29 (Sun.), 2020
Launch time                    : 16:15 through 18:15 (JST)
Reserved Launch period   : November 30 (Mon.), 2020 through January 31 (Sun.), 2020

Hmm...this source has a more refined launch window of 07:25 - 08:49 UTC:

https://twitter.com/koumeiShibata/status/1332200165172670466?s=19
« Last Edit: 11/27/2020 05:42 am by Galactic Penguin SST »
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Offline William Graham

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NVS rollout stream has started. Waiting for H-IIA to come out to play.

Offline William Graham

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Here she comes, looks like the 202 configuration.

It's almost at the pad already, so rollout must have started before the webcast, with the rocket hidden in the dark between the VAB and the pad.
« Last Edit: 11/28/2020 04:19 pm by William Graham »

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twitter.com/mhi_ls/status/1332737996978733057

Quote
射点に到着しました。
Arrived to the launch pad. #H2AF43

https://twitter.com/mhi_ls/status/1332782202594136066

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Offline Steven Pietrobon

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T-1 hour.

https://twitter.com/MHI_LS/status/1332934525542752256

"It is 60 minutes before launch.  #H2AF43"
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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NVS livestream.

Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Looks like NVS is still setting up.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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X-30 minutes. Sprinklers are on.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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X-25 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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X-20 minutes. JAXA seems a bit quiet for this mission.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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X-15 minutes. Seems that both JAXA and MHI are not doing their own livestream!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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X-10 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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X-5 minutes. There's no announcements or commentary.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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X-4 minutes. Yay! We have a countdown clock.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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X-3 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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X-2 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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X-1 minute.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Liftoff!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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https://twitter.com/MHI_LS/status/1332948707633815554

Quote
Mitsubishi Heavy Industries (MHI) has launched the H-IIA Launch Vehicle No. 43 at 16:25  on Nov. 29, 2020 JST from the Tanegashima Space Center. #H2AF43

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X+1 minute. That's all we're going to see folks!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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SRB separation.

X+2 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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X+3 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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X+4 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Fairing separation.

X+5 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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X+6 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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NVS is now into cloud watching.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Empty launchpad.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Steve,  thanks for doing your best with this launch despite lack of video from the launch provider.
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https://twitter.com/MHI_LS/status/1332984449038860288

The separation of satellite has been confirmed. We would like to end the today’s H-IIA F43 launch report. Thank you very much.

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JDRS-1 cataloged:2020-089A/47202 in 256 x 35797 km x 28.43°

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JDRS-1 cataloged:2020-089A/47202 in 256 x 35797 km x 28.43°
Isn’t the orbit of satellites operated by military allies of US usually classified if requested, and this appears to have been classified in Japan.

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JDRS-1 cataloged:2020-089A/47202 in 256 x 35797 km x 28.43°
Isn’t the orbit of satellites operated by military allies of US usually classified if requested, and this appears to have been classified in Japan.
This is only the GTO.  The publicly-available TLEs might disappear, upon Japanese government request, once it's in GEO.

It's civilian/intelligence use, so that might not happen.

If it does officially "disappear," then the TLEs generated from amateur satellite observations would begin.

We shall see.
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