Author Topic: HTV-1 mission updates  (Read 28087 times)

Offline anik

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HTV-1 mission updates
« on: 09/11/2009 01:25 PM »
HTV-1 Mission Flight Day 2 (September 11, 2009)
http://iss.jaxa.jp/en/htv/news/

"The HTV-1, inserted into the planned elliptical orbit on FD1, has been continuing a smooth flight on FD2. Today, the HTV-1 performed the first rendezvous maneuver at 9:33 a.m. [00:33 UTC - anik] to raise its orbital altitude toward the ISS. Approximately two hours later, the HTV-1 reached the targeted orbit. While flying in this orbit, the HTV-1 will perform demonstration tests planned on FD3. The next HTV-1 Mission updates will be posted on Saturday morning, September 12"

Offline catfry

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Re: HTV-1 mission updates
« Reply #1 on: 09/11/2009 02:11 PM »
ISS On-Orbit Status 09/10/09

Rising Sun: At 1:01:46 pm EDT, JAXA successfully launched the first H-IIB rocket at Tanegashima, Japan, carrying the HTV1 (H-IIB Transfer Vehicle) with about 3.5 metric tons of supplies to the ISS. After nominal orbit insertion, HTV1 was successfully activated at ~1:40pm. Berthing to Node-2 is scheduled on 9/17 (Thursday next week). Congratulations, Nippon!


http://www.nasa.gov/directorates/somd/reports/iss_reports/index.html
« Last Edit: 09/11/2009 02:13 PM by catfry »

Offline rdale

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Re: HTV-1 mission updates
« Reply #2 on: 09/11/2009 02:29 PM »
Has anyone found TLE's on this? I'd like to track it but can't seem to locate any source.

Offline kermit

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Re: HTV-1 mission updates
« Reply #3 on: 09/11/2009 02:35 PM »
Has anyone found TLE's on this? I'd like to track it but can't seem to locate any source.

Heavens Above if they are up to date:

http://www.heavens-above.com/orbit.aspx?satid=35817
« Last Edit: 09/11/2009 10:14 PM by kermit »

Offline joncz

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Re: HTV-1 mission updates
« Reply #4 on: 09/11/2009 02:37 PM »
Has anyone found TLE's on this? I'd like to track it but can't seem to locate any source.

http://www.heavens-above.com/orbit.aspx?satid=35817
« Last Edit: 09/11/2009 02:37 PM by joncz »

Offline ItsyAndy

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Re: HTV-1 mission updates
« Reply #5 on: 09/11/2009 06:16 PM »
Caught it about 10 mins ago passing over north Italy. Not so much bright but still visible with the naked eye. It looked in good shape ;-)
« Last Edit: 09/11/2009 06:17 PM by ItsyAndy »
-- Andy from Italy

Offline catfry

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Re: HTV-1 mission updates
« Reply #6 on: 09/12/2009 06:40 AM »
From the ISS status reports:

HTV FD (Flight Day) overview:
FD1: PM1 (main engines), M1 (RCS Thrusters), PM1’ (RCS) – all done successfully, setting up the initial phasing for rendezvous;
FD2: Far field rendezvous
FD3: Far field demonstrations
FD4, FD5: Far field rendezvous
FD6: IMMT review of demonstrations
FD7: Far field rendezvous
FD8: Prox Ops, Capture (~3:50pm if on 9/17), Installation
Capture will occur during time without Ku-Band available.
FD9: Crew half-duty day, Ingress
FD10: JEMRMS checkout and EP (two payloads) prep
FD11: EP Transfer to JEM-EF
FD12: Payloads Transfer from EP to EF (Exposed Facility) with Kibo RMS (Robotic Manipulator System)
FD13: EP Transfer back to HTV
FD14-38: Cargo transfer from HTV to ISS
FD38: Prep for release
FD39: Deactivation and Release
FD40: Re-entry
« Last Edit: 09/12/2009 06:41 AM by catfry »

Offline anik

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Re: HTV-1 mission updates
« Reply #7 on: 09/12/2009 07:14 AM »
HTV-1 Began Demonstration Tests (September 12, 2009)
http://iss.jaxa.jp/en/htv/mission/htv-1/news/

With the start of FD3, demonstration tests of the HTV-1 began at 10:12 a.m. [01:12 UTC - anik] September 12. Today’s demonstration includes HTV’s Collision Avoidance Maneuver(CAM)operations, a series of contingency maneuvers that may be needed in case of emergency during the HTV-1’s final rendezvous phase. All the maneuvers are expected to be completed by 3:23 p.m. [06:23 UTC - anik] September 12.

Offline anik

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Re: HTV-1 mission updates
« Reply #8 on: 09/12/2009 08:51 AM »
CAM Demonstration Concluded with Great Success (September 12, 2009)
http://iss.jaxa.jp/en/htv/mission/htv-1/news/

The Collision Avoidance Maneuver (CAM) demonstration went quite smoothly. The last maneuver took place at 4:34 p.m. [07:34 UTC - anik],September 12, and with that, the HTV-1 concluded all the CAM tests. The HTV-1's systems functioned well throughout the demonstration, proving that the HTV-1 could safely move away from the International Space Station (ISS) in case of any emergency during its final rendezvous phase. The data obtained during today's demonstration will be reviewed at NASA's ISS Mission Management Team (IMMT) meeting on FD6 for approval for the HTV-1's final approach to the ISS. The next HTV-1 Mission update will be posted on September 15.

Offline catfry

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Re: HTV-1 mission updates
« Reply #9 on: 09/13/2009 08:12 AM »
ISS On-Orbit Status 09/12/09:

FE-4 Bob Thirsk configured two SSC (Station Support Computer) laptops to provide additional monitor views at the LAB RWS (Robotic Workstation) in support of the subsequent HTV (H-II Transfer Vehicle) activities.

Then, FE-5 Frank De Winne set up the DOUG (Dynamic Operations Ubiquitous Graphics) for the subsequent SSRMS (Space Station Robotic Manipulator System) activities during which he & Nicole used the SSRMS to practice free-flyer grappling by approaching & capturing the PMA-3 FRGF (Pressurized Mating Adapter 3 Flight Releasable Grapple Fixture) as a “stand-in” for the HTV. Frank later deactivated the RWS monitor setup. Purpose of the exercise: to allow the crew to practice manual SSRMS maneuvers. After two Joint OCAS (Operator Commanded Auto Sequence) maneuvers, the SSRMS was set up in a “high hover” position over the PMA-3 FRGF, at a distance comparable to the high hover position for HTV. There are some artificial aspects to these approaches compared to the actual HTV capture, but they should provide a representation of the real SSRMS dynamics and capture sequence (including hand controller technique, Loaded Parameters, rate scale, POHS off, fast capture with dual stage rigidization and time pressure). DOUG is a frequently updated special software program running on the MSS (Mobile Service System) RWS laptops that provides a graphical birdseye-view image of the external station configuration and the SSRMS arm, showing its real-time location and configuration on a laptop during its operation.]


...

HTV FD (Flight Day) Overview:
FD2: HTV successfully completed all FD2 far-field rendezvous demonstration activities CPU Passive Abort, three different CAMs (Collision Avoidance Maneuvers): a CPU Medium CAM, a CPU Large CAM and an ACU Checkout CAM, also an IOC Passive Abort, plus Free Drift mode.]
FD3: Far field demonstrations
FD4, FD5: Far field rendezvous
FD6: IMMT review of demonstrations
FD7: Far field rendezvous
FD8: Prox Ops, Capture (~3:50pm if on 9/17), Installation
Capture will occur during time without Ku-Band available.
FD9: Crew half-duty day, Ingress
FD10: JEMRMS checkout and EP (two payloads) prep
FD11: EP Transfer to JEM-EF
FD12: Payloads Transfer from EP to EF (Exposed Facility) with Kibo RMS (Robotic Manipulator System)
FD13: EP Transfer back to HTV
FD14-38: Cargo transfer from HTV to ISS
FD38: Prep for release
FD39: Deactivation and Release
FD40: Re-entry

Offline rdale

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Re: HTV-1 mission updates
« Reply #10 on: 09/13/2009 07:55 PM »
FD3 (yesterday):  Far field demonstrations:  HTV successfully performed a nominal MD1 burn (retrograde) for a minor adjustment to orbit phasing.  Next scheduled burn: MD2, tomorrow morning (FD5) at 5:12am EDT.

Offline yoichi

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Re: HTV-1 mission updates
« Reply #11 on: 09/14/2009 01:26 PM »
HTV-1 Maintains Smooth Flight
Last Updated: September 14, 2009

Flight Day 5 (FD5), the HTV-1 is continuing the smooth flight.
Tomorrow, Flight Day 6 (FD6), the result of the HTV-1 demonstration tests will be reviewed at the ISS Mission Management Team (IMMT) meeting. In the meeting, safety and flight control abilities of the HTV-1 will be assessed based on the data collected during the demonstration tests conducted on FD3. When the IMMT gives an approval for the HTV-1's final rendezvous approach, the HTV-1 is set to perform the first Height Adjustment Maneuver (HAM) on FD7 toward the ISS.
Aboard the International Space Station (ISS), the ISS crewmembers have been performing various preparations and training for the arrival of the HTV-1 expected on September 18. So far, the crew configured the Common Berthing Mechanism (CBM) at the nadir side of the Harmony (Node2), a berthing port for the HTV-1, prepared the Extravehicular Activity (EVA) tools for a potential contingency spacewalk, and set up the equipment that will be used for the HTV berthing operations. The crewmembers, who will manipulate the station’s robotic arm (SSRMS) during the capturing/berthing operations, have thoroughly simulated and reviewed the operations procedures.

The next HTV-1 Mission updates will be posted on September 15.

http://iss.jaxa.jp/en/htv/news/htv1_maintains_smooth_flight.html
« Last Edit: 09/14/2009 06:37 PM by anik »

Offline spaceamillion

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Re: HTV-1 mission updates
« Reply #12 on: 09/14/2009 07:25 PM »
Hi,

The HTV just passed over England.

Here in Leeds I saw a short, very bright flare from it as it passed almost directly overhead, very spectacular !!

Offline Ronsmytheiii

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Re: HTV-1 mission updates
« Reply #13 on: 09/14/2009 07:42 PM »
HTV on the ISS mission track!
"Every vision is a joke until the first man accomplishes it; once realized, it becomes commonplace." - Robert Goddard

Offline rdale

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Re: HTV-1 mission updates
« Reply #14 on: 09/14/2009 09:39 PM »

For FE-2, FE-4 & FE-5, it was time for another training session, probably their last, for HTV tracking & capture operations with the SSRMS (Space Station Remote Manipulator System) for proficiency and team coordination purposes, using the ROBoT (Robotics onboard Trainer) simulator with video coverage.  Focus was on low hover through capture, then a 30m hold run.    [The video camera was to be pointed at the ROBoT screens for downlink, simulating the camera that will be set up to downlink the RWS (Robotic Workstation) overlay data to the ground during HTV Rendezvous.  This serves the purpose of helping with ground Situational Awareness, ROBoT troubleshooting and instructor feedback.  ROBoT uses DOUG (Dynamic Operations Ubiquitous Graphics) software, a hand controller and two laptops (one for graphics, one for the simulation) for on-orbit training of MSS (Mobile Service System) and SSRMS ops.  Capture of the HTV with the SSRMS will be effected at ~8.9 m distance, with HTV commanded to free drift.  HTV will then be berthed at Node-2.]

HTV Update:  The vehicle continues its planned trajectory for rendezvous with the ISS, and consumables remain within normal limits.  The following two anomalies are being assessed by JAXA & NASA, details to be forthcoming:

    * Navigation error due to a SIGI (Space Integrated GPS/Inertial Navigation System) filter anomaly on HTV & PROX (SIGI allows navigation & attitude determination using the GPS/Global Positioning System),
    * An HTV FDIR (Fault Detection, Isolation & Recovery) system setting associated with a Gyro-A data comparison check on the Y-axis.

Offline wjbarnett

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Re: HTV-1 mission updates
« Reply #15 on: 09/15/2009 01:47 AM »
I was wondering about the purple orbit plot on the worldmap above... I'm nothing close to an orbital mechanics wiz, but if the purple plot is representing realworld conditions, then it would seem the HTV is not in the correct plane to easily rendezvous with ISS (when Progresses are plotted they never get their own orbit lines). Has HTV got a big burn planned to get into the right plane? Or what?
Jack
Twitter: wjackbarnett

Offline jscman

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Re: HTV-1 mission updates
« Reply #16 on: 09/15/2009 03:55 AM »
Remember that what you are seeing is the ground track of the two vehicles and not the orbit plane strictly speaking.  At the time of this snapshot, the ISS and HTV are several thousands of kilometers apart from each other along the same orbit.  Let's play a thinking game:

Say that the ISS is at its most northern part of its ground track and the HTV was at the most southern part of its ground track.  And let's say that they are in exactly the same plane and the same orbital height.  Fast forward one-half revolution.  Now the HTV is at its most northern portion of its orbit.  Is it over the same spot as ISS was one-half orbit ago?  NO.  Why?  Remember that the Earth rotated on its own axis over that half orbit so when HTV comes flying by it won't be over the same spot even though it is in the same orbit.  This is what you are seeing.
« Last Edit: 09/15/2009 03:57 AM by jscman »

Offline Jorge

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Re: HTV-1 mission updates
« Reply #17 on: 09/15/2009 04:18 AM »
Remember that what you are seeing is the ground track of the two vehicles and not the orbit plane strictly speaking.  At the time of this snapshot, the ISS and HTV are several thousands of kilometers apart from each other along the same orbit.  Let's play a thinking game:

Say that the ISS is at its most northern part of its ground track and the HTV was at the most southern part of its ground track.  And let's say that they are in exactly the same plane and the same orbital height.  Fast forward one-half revolution.  Now the HTV is at its most northern portion of its orbit.  Is it over the same spot as ISS was one-half orbit ago?  NO.  Why?  Remember that the Earth rotated on its own axis over that half orbit so when HTV comes flying by it won't be over the same spot even though it is in the same orbit.  This is what you are seeing.


They might really be in different planes at this point, too. Capture and berthing is several days away and there's a lot of differential nodal regression between now and then...
JRF

Offline yoichi

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Re: HTV-1 mission updates
« Reply #18 on: 09/15/2009 09:07 AM »
http://iss.jaxa.jp/en/htv/news/htv1_fd06.html

HTV-1 Approved for Proximity Operations and Final Approach
Last Updated: September 15, 2009

Fight Day 6 (FD6), the HTV-1 continues the far-field rendezvous flight.

Today, the International Space Station (ISS) Mission Management Team (MMT) approved the HTV-1’s proximity operations and final approach. Having received the approval from the ISS program, the HTV-1 is set to perform its first Height Adjustment Maneuver (HAM) on Flight Day 7 (FD7) at 9:03 a.m. September 16.

On Flight Day 8 (FD8), after performing two more HAM burns, the HTV-1 will reach the proximity communication zone (23km from the ISS) where the HTV-1 can directly communicate with the ISS. There, the HTV-1 will establish communications with the Proximity Communication System (PROX) that is installed on the Japanese Experiment Module, Kibo, and then, the HTV-1 will continue to approach the ISS until it reaches the “Approach Initiation (AI) point”, 5 km behind the ISS. The HTV-1 is scheduled to move from the AI point to a point 500 meters below the ISS (RI point) at 0:30 a.m. September 18. From the RI point, the nadir side of the ISS, the HTV-1 will slowly move upward to the ISS.

Capture of the HTV-1 by the station’s robotic arm (SSRMS) is scheduled at 4:50 a.m. September 18. Berthing operations of the HTV-1 is expected to begin at 7:00 a.m. September 18.

The next HTV-1 Mission update will be posted on September 16.

Offline yoichi

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Re: HTV-1 mission updates
« Reply #19 on: 09/16/2009 01:22 AM »
http://iss.jaxa.jp/en/htv/

The HTV-1 Performed the First Height Adjustment Maneuver(September 16, 2009)

On Flight Day 7 (FD7), the HTV-1 successfully conducted its first Height Adjustment Maneuver (HAM1) at 9:04 a.m. September 16. The HTV-1 is now in nominal attitude maintaining the planned orbit.

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