Soyuz on-orbit rendezvous burns delayed -- problem fixed?

The first two rendezvous burns for Soyuz today were slipped several hours,
and then made successfully with revised durations, so as not to affect the
scheduled
docking time. Anybody hearing air-to-ground or internal rumors as to
the reason for this unusual delay, and whether it might influence the
day-of-rendezvous
maneuvers?

JimO

"Jim Oberg" wrote
The first two rendezvous burns for Soyuz today were slipped several hours,

More info is available now at
today's OFFICIAL USE ONLY 'NASA On-Orbit ISS Status Report"
http://www.spaceref.com/news/viewsr.html?pid=14231

Soyuz TMA-5/9S (no. 215) launched last night on time (11:06pm EDT) with no
issues. Orbit was attained at L+ 9 min. as planned and all deployment
events (antennas, solar arrays, docking probe) were nominal and on time,
automatically upon booster separation sensor signal.

A computer glitch caused a delay of the first two orbit correction
maneuvers. Expedition 10+1 is on its way to the ISS, with docking set for
10/16 at 12:25am EDT.

During the Orbit 3 RGS (Russian ground site) pass, portions of the maneuver
plan settings for correction burns DV1 and DV2 were not received by the
onboard computer, due to a temporarily badly aligned gain pattern of the
spacecraft's telemetry antenna. In addition, the Molniya relay satellite
link was unexpectedly lost.

TsUP/Moscow immediately cancelled the entire maneuver plan and uplinked the
backup command load. The DV1 and DV2
maneuvers were delayed from Orbits 3 & 4 to Orbits 4 & 5 (over RGS).

Because the magnitude of each of the burns was adjusted to compensate for
the slip, 9S docking time remains unaffected. Investigation of the glitch
continues to ensure there are no other probable cause versions or future
impacts.]

"Jim Oberg" wrote:

A computer glitch caused a delay of the first two orbit correction
maneuvers.

TMA-1: Rentry problems (computer failure).
TMA-2: Recontacted ISS (human error).
TMA-3: Helium leakage in the propulsion system.
TMA-4: (still in progress)
TMA-5: Computer glitch.
--
Touch-twice life. Eat. Drink. Laugh.

-Resolved: To be more temperate in my postings.
Oct 5th, 2004 JDL

"Jim Oberg" wrote in message ...
"Jim Oberg" wrote
The first two rendezvous burns for Soyuz today were slipped several hours,

More info is available now at
today's OFFICIAL USE ONLY 'NASA On-Orbit ISS Status Report"
http://www.spaceref.com/news/viewsr.html?pid=14231

Soyuz TMA-5/9S (no. 215) launched last night on time (11:06pm EDT) with no
issues. Orbit was attained at L+ 9 min. as planned and all deployment
events (antennas, solar arrays, docking probe) were nominal and on time,
automatically upon booster separation sensor signal.

A computer glitch caused a delay of the first two orbit correction
maneuvers. Expedition 10+1 is on its way to the ISS, with docking set for
10/16 at 12:25am EDT.

During the Orbit 3 RGS (Russian ground site) pass, portions of the maneuver
plan settings for correction burns DV1 and DV2 were not received by the
onboard computer, due to a temporarily badly aligned gain pattern of the
spacecraft's telemetry antenna. In addition, the Molniya relay satellite
link was unexpectedly lost.

I was hoping to see the action in NASA's J-Track 3D:-
http://science.nasa.gov/RealTime/JTr.../JTrack3D.html

It seems station-bound Russian TMA flights aren't covered. Is there
another site that gives a real time graphic showing such flights?

On 15 Oct 2004 04:01:54 -0700, (AA Institute)
wrote:

"Jim Oberg" wrote in message ...
"Jim Oberg" wrote
The first two rendezvous burns for Soyuz today were slipped several hours,

More info is available now at
today's OFFICIAL USE ONLY 'NASA On-Orbit ISS Status Report"
http://www.spaceref.com/news/viewsr.html?pid=14231

Soyuz TMA-5/9S (no. 215) launched last night on time (11:06pm EDT) with no
issues. Orbit was attained at L+ 9 min. as planned and all deployment
events (antennas, solar arrays, docking probe) were nominal and on time,
automatically upon booster separation sensor signal.

A computer glitch caused a delay of the first two orbit correction
maneuvers. Expedition 10+1 is on its way to the ISS, with docking set for
10/16 at 12:25am EDT.

During the Orbit 3 RGS (Russian ground site) pass, portions of the maneuver
plan settings for correction burns DV1 and DV2 were not received by the
onboard computer, due to a temporarily badly aligned gain pattern of the
spacecraft's telemetry antenna. In addition, the Molniya relay satellite
link was unexpectedly lost.

I was hoping to see the action in NASA's J-Track 3D:-
http://science.nasa.gov/RealTime/JTr.../JTrack3D.html

It seems station-bound Russian TMA flights aren't covered. Is there
another site that gives a real time graphic showing such flights?

The Russian Federal space agency has a realtime map showing the ISS
and Soyuz TMA-5 on their orbital paths.

http://www.federalspace.ru/MIOP1file2.asp

Click the link at the bottom of the page to toggle to a different
orbital map showing the orbital paths of the ISS and Soyuz TMA-5.


- Rusty Barton

"Derek Lyons" wrote in message
...
"Jim Oberg" wrote:

A computer glitch caused a delay of the first two orbit correction
maneuvers.

TMA-1: Rentry problems (computer failure).
TMA-2: Recontacted ISS (human error).
TMA-3: Helium leakage in the propulsion system.
TMA-4: (still in progress)
TMA-5: Computer glitch.

Oh come on, capsules are safer. Toe the party line!


--
Touch-twice life. Eat. Drink. Laugh.

-Resolved: To be more temperate in my postings.
Oct 5th, 2004 JDL

rk wrote:

Derek Lyons wrote:

"Jim Oberg" wrote:

A computer glitch caused a delay of the first two orbit correction
maneuvers.

TMA-1: Rentry problems (computer failure).
TMA-2: Recontacted ISS (human error).
TMA-3: Helium leakage in the propulsion system.
TMA-4: (still in progress)
TMA-5: Computer glitch.

I have been a bit behind in my reading, have they published a report yet on
the root cause (or any cause!) of the unintended pyrotechnic initiation?

They haven't published (that I have seen) a report on any of those
incidents.

D.
--
Touch-twice life. Eat. Drink. Laugh.

-Resolved: To be more temperate in my postings.
Oct 5th, 2004 JDL

"Greg D. Moore \(Strider\)" wrote:

"Derek Lyons" wrote in message
"Jim Oberg" wrote:

A computer glitch caused a delay of the first two orbit correction
maneuvers.

TMA-1: Rentry problems (computer failure).
TMA-2: Recontacted ISS (human error).
TMA-3: Helium leakage in the propulsion system.
TMA-4: (still in progress)
TMA-5: Computer glitch.

Oh come on, capsules are safer. Toe the party line!

I made no editorial comments on the safety or lack thereof, I just
provided a box score for those playing the home game to catch up with.

D.
--
Touch-twice life. Eat. Drink. Laugh.

-Resolved: To be more temperate in my postings.
Oct 5th, 2004 JDL

On Sat, 16 Oct 2004 01:28:41 GMT, (Derek Lyons)
wrote:

"Greg D. Moore \(Strider\)" wrote:

"Derek Lyons" wrote in message
"Jim Oberg" wrote:

A computer glitch caused a delay of the first two orbit correction
maneuvers.

TMA-1: Rentry problems (computer failure).
TMA-2: Recontacted ISS (human error).
TMA-3: Helium leakage in the propulsion system.
TMA-4: (still in progress)
TMA-5: Computer glitch.


TMA-5: Problem with automated docking system.


- Rusty