Another Satellite's Re-entry (ROSAT)

روسات هو قمر صناعي لقياس الأشعة السينية الآتية من بعض الأجرام السماوية. بلغ وزن القمر الصناعي بمعداته 2426 كيلوجرام وهو يعتبر أكبر قمرا صناعيا ألمانيا وزنا، وتكلف نحو 560 مليون مارك ألماني.


ROSAT re-entry


The defunct German Roentgen Satellite (ROSAT) is coming back to planet Earth -
sometime in late October or early November. The X-ray space observatory is less
than half the weight (2.4-tons) of the fallen UARS, but has an orbit that
ranges from latitudes of 53 degrees north and south, putting it in a position
where it can threaten a wide region that stretches from Canada to South
America. And while much of the spacecraft will disintegrate during it’s rapid
descent,.

ROSAT may not be larger, but this satellite will be one of the most dangerous satellites, giving Earth a 1 in 2000 chance of someone being hit. Anyone hit by this one would certainly not feel good and here is what makes this so dangerous.

ROSAT is Germany's Space Telescope. The satellite scope has mirrors that were designed and built for extreme heat. These mirrors will break, but most of it will be intact when it hits the Earth. The mirrors will act like a giant blade raining many pieces of glass onto a stretch of over 500 km.
UARS was dangerous due to the heavier pieces, but ROSAT will be dangerous because it will be like throwing knives out of an airplane and not knowing where thousands of these knives will land.

ROSAT simply is going to be one to watch over the next month. Recent solar storm activity is lessening the orbit day by day and the Sun will belch x-class flares toward the planet this week. This prompts the conclusion this satellite will come in next month, earlier than the later month forecast

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China Space Station:Tiangong-1 Experimental Module Launched

China launched an experimental module to lay the groundwork for a future space station on Thursday, underscoring its ambitions to become a major space power over the coming decade.

The box car-sized Tiangong-1 module was shot into space from the Jiuquan launch center on the edge of the Gobi Desert aboard a Long March 2FT1 rocket.

It is to move into an orbit 217 miles (350 kilometers) above the Earth and conduct surveys of Chinese farmland using special cameras, along with experiments involving growing crystals in zero gravity.

China then plans to launch an unmanned Shenzhou 8 spacecraft to practice remote-controlled docking maneuvers with the module, possibly within the next few weeks. Two more missions, at least one of them manned, are to meet up with it next year for further practice, with astronauts staying for up to one month.

The 8.5-ton module, whose name translates as "Heavenly Palace-1," is to stay aloft for two years, after which two other experimental modules are to be launched for additional tests before the actual station is launched in three sections between 2020and 2022.

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AubieSat-1 Launch information for 25 October 2011

Fellow satellite enthusiasts;

We fervently request your assistance in receiving transmissions from an
upcoming satellite, AubieSat-1, immediately after its launch from
Vandenberg AFB, California, USA, 25 October 2011 at 9:52 UTC.
AubieSat-1 (AS-1) is an undergraduate - built CubeSat satellite
developed by Auburn University.

AS-1 is designed to transmit with a power of about 800 milliwatts on a
frequency of 437.475 MHz, plus or minus Doppler correction. The beacon
signal, along with telemetry, will be sent using A1A continuous wave
Morse code at 20 words per minute. Additional telemetry from the
onboard science experiment will use CW transmissions up to 60 WPM.




Wersinger, KI4YAU
Director, AU Student Space Program
Physics Department
Auburn University.

Sourse AMSA

NASA Decay Predictions for UARS Satellite

UPDATE #16 -
NASA’s decommissioned Upper Atmosphere Research Satellite fell back to Earth between 11:23 p.m. EDT Friday, Sept. 23 and 1:09 a.m. EDT Sept. 24. The Joint Space Operations Center at Vandenberg Air Force Base in California said the satellite entered the atmosphere over the North Pacific Ocean, off the west coast of the United States. The precise re-entry time and location of any debris impacts are still being determined. NASA is not aware of any reports of injury or property damage. This is your source for official information on the re-entry of UARS. All information posted here has been verified with a government agency or law enforcement. NASA will conduct a media telecon at 2 p.m. ET to discuss the re-entry. The telecon will be streamed live at www.nasa.gov/newsaudio.

تقرير رقم 15 من وكالة الفضاء الامريكية ناسا عن سقوط القمر يورس

Update #15
Sat, 24 Sep 2011 10:46:42 AM UTC+0300


NASA’s decommissioned Upper Atmosphere Research Satellite fell back to Earth between 11:23 p.m. EDT Friday, Sept. 23 and 1:09 a.m. EDT Sept. 24. The Joint Space Operations Center at Vandenberg Air Force Base in California said the satellite penetrated the atmosphere over the Pacific Ocean. The precise re-entry time and location are not yet known with certainty.

تقرير رقم 14 من وكالة الفضاء الامريكية ناسا عن سقوط القمر يورس

Update #14
Sat, 24 Sep 2011 10:16:50 AM UTC+0300


NASA’s decommissioned Upper Atmosphere Research Satellite fell back to Earth between 11:23 p.m. EDT Friday, Sept. 23 and 1:09 a.m. EDT Sept. 24. The satellite was passing eastward over Canada and Africa as well as vast portions of the Pacific, Atlantic and Indian oceans during that period. The precise re-entry time and location are not yet known with certainty.

UARS Update #11 from NASA تقرير رقم 11 من ناسا عن سقوط القمر يورس

Update #11
Sat, 24 Sep 2011 02:30:46 AM UTC+0300

As of 7 p.m. EDT on Sept. 23, 2011, the orbit of UARS was 90 miles by 95 miles (145 km by 150 km). Re-entry is expected between 11 p.m. Friday, Sept. 23, and 3 a.m., Sept. 24, Eastern Daylight Time (3 a.m. to 7 a.m. GMT). During that time period, the satellite will be passing over Canada, Africa and Australia, as well as vast areas of the Pacific, Atlantic and Indian oceans. The risk to public safety is very remote

Sourse NASA

Center for Orbital and Reentry Debris Studies

Type: UARS Satellite
Int'l Designation: 1991 063B
Launched: 12 SEP 1991 @ 23:11 UTC
Site: Deployed from Shuttle Discovery on 15 September 1991
Mission: Upper Atmosphere Research Satellite

Reentry Prediction:

Predicted Reentry Time: 24 SEP 2011 @ 03:16 UTC ± 5 hours
Prediction Epoch: 23 SEP 2011 @ 12:02:08.552 UTC

Prediction Ground Track:





Legend
Yellow Icon - location of object at predicted reentry time
Orange Line - area of visibility at the predicted reentry time for a ground observer
Blue Line - ground track uncertainty prior to predicted reentry time (ticks at 5-minute intervals)
Yellow Line - ground track uncertainty after predicted reentry time (ticks at 5-minute intervals)
White Line - day/night divider at predicted reentry time (Sun location shown by White Icon)
Note: Possible reentry locations lie anywhere along the blue and yellow ground track.

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SOURSE

مسارات القمر الصناعي يورس فوق السودان

UARS Passes over sudan during 22 - 23 Sept 2011 According to last Keplers Elements.

مسارات القمر الصناعي يورس فوق السودان ليوم23 و 24 و 25 سبتمبر 2011

تقرير رقم 10 من ناسا عن سقوط القمر يورس

Update #10
Fri, 23 Sep 2011 05:45:08 PM UTC+0300


As of 10:30 a.m. EDT on Sept. 23, 2011, the orbit of UARS was 100 miles by 105 miles (160 km by 170 km). Re-entry is expected late Friday, Sept. 23, or early Saturday, Sept. 24, Eastern Daylight Time. Solar activity is no longer the major factor in the satellite’s rate of descent. The satellite’s orientation or configuration apparently has changed, and that is now slowing its descent. There is a low probability any debris that survives re-entry will land in the United States, but the possibility cannot be discounted because of this changing rate of descent. It is still too early to predict the time and location of re-entry with any certainty, but predictions will become more refined in the next 12 to 18 hours.

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GoogleSat Track - UARS

http://www.lizard-tail.com/isana/tracking/index.html?&target=uars

NASA UARS Updates page

Last update

Update #8
Thu, 22 Sep 2011 02:44:51 PM UTC+0300
As of 7 a.m. EDT Sept. 22, 2011, the orbit of UARS was 115 mi by 120 mi (185 km by 195 km). Re-entry is expected sometime during the afternoon of Sept. 23, Eastern Daylight Time. The satellite will not be passing over North America during that time period. It is still too early to predict the time and location of re-entry with any more certainty, but predictions will become more refined in the next 24 to 36 hours

For more please visit
http://www.nasa.gov/mission_pages/uars/index.html

مسارات القمر الصناعي يورس فوق السودان ليوم 22 و 23 سبتمبر 2011

UARS Passes over sudan during 22 - 23 Sept 2011 According to last Keplers Elements
مسارات القمر الصناعي يورس فوق السودان ليوم 22 و 23 سبتمبر 2011

Script Tracking summary of UARS over sudan

Here is the Script tracking summary of UARS over Sudan during the next 3 days.

Six ton UARS satellite to hit surface of the earth

The major portion of the 5.7 metric tonne satellite is due for re-entry on the 23 or 24 September 2011 (UT). The majority of this satellite will burn up on re-entry, however there will be fall-out from this satellite. The track over which the debris will fall is around 800 kilometers (500 miles).

The inclination of this orbit is identical to the International Space Station - any region which can have a direct fly-over of the ISS has a chance of the re-entry taking place over it.

Predicting re-entry of any object is difficult, as an example; a recent solar flare caused the space station to rapidly loose 30km in altitude (over and above its normal decay rate).

Depending on the F10.7 levels (and therefore air density) and the orientation of the decaying satellite, the current best estimate is only a range at this stage - 23 September 2011 20:36 UT +/- 20 hours

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Falling NASA UARS Satellite Observed While Still in Orbit

The huge Upper Atmosphere Research Satellite (UARS) will be plummeting to Earth in an uncontrolled re-entry this week, but here’s an incredible video from astrophotographer extraordinaire Thierry Legault who shot footage of UARS with his 14-inch telescope. Legault was in Northern France (Dunkerque) last week to attempt to capture views of the satellite, and had success on September 15, 2011 between 04:42:14 and 04:44:02 UTC, just 8-9 days before its atmospheric reentry, when it was at an altitude of only 250 km. The tumbling, uncontrolled nature of the satellite is obvious in this video, and various components are visible, such as the body itself and the solar arrays.

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ARISSat-1 TLM

UTC 09:22 - 09:31
Local time 12:22 Mid of the day .
Spacecraft was in low power mode!

17 messages to HO-68 BBS in single pass

17 messages to HO-68 BBS in single pass movie clip.