SATCOM Transits



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john@satcom.freeserve.co.uk
Updated on a regular basis

A selection of recent images and animations featuring the International Space Station as seen
from the ground (Wirral UK )

"Give John my compliments for the images . You can see the deployed radiators on the S1 and P1 trusses"

Don Pettit , Expedition 6 crew Science Officer.April 3 2003 from aboard ISS


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Feature For 2008 ......

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ATV "Jules Verne" docked with ISS April 3 2008



Late afternoon April 3 ESA's ATV "Jules Verne" docked with ISS
A few hours later at 1943 GMT the complex was imaged through broken cloud.

In what is thought to be the first ground based image , post docking , ATV is easy to see , docked to the aft port at Zvezda


Orbit 53677.2

20h43m03s -4.3mag h:60.2° distance: 394.4km height above Earth: 345.1km

On March 11 2008

I also imaged ATV in free flight as it climbed towards orbital altitude.In this animation the solar arrays can just be seen.Range 330km

ISS and Endeavour Early morning pass March 13 2008



Less than an hour after docking , Endeavour and ISS make a 61 deg pass over the UK
Endeavour can be seen quite clearly as the complex passes into orbital sunrise.
Note the attitude/flight mode of ISS is reversed to that of March 11


Orbit 53336.7 4h57m45s -4.4mag h:61.4° distance: 392.7km

Just thirty minutes before the launch of Endeavour ( STS123) , ISS makes a 61 deg pass over the UK
March 11 2008 0547 GMT



During a short respite in some of the worst storms seen here for some time ISS crosses the sky , followed two minutes later by the recently launched ATV .
The ATV appears to be moving in reverse mode...yet to be confirmed.
The solar panels of the spacecraft are just visible in the negative still image below.

ISS -4.2mag h:61.4° distance: 393.0km Orbit 53305.4

ATV 0.6mag h:56.1° distance: 332.1km Orbit 31.3

Early evening pass and Lunar Transit ......February 12 2008

Click here for full details

ISS departs to the east after crossing the Moon

Evening pass February 10 2008


It never ceases to amaze me how ISS visible passes can vary from night to night!
This evening another very bright transit , but , no sign of the spectacular flare from the starboard array. Instead the illumination came from the truss radiators which threw out a semi circle of light.
Is that the ouline of Atlantis we see in the early stages ?
Orbit 52840.3
18h36m51s -3.8mag h:51.3° distance: 428.5km height above Earth: 339.7km

Evening pass February 9 2008


Atlantis has been docked about an hour and creates a stunning spectacle as the stacked complex crosses the evening sky
A bright flare from the static starboard array increases visual magnitude to about -5

Orbit 52826.0
18h16m16s -4.1mag h:60.9° distance: 385.8km height above Earth: 339.8km

Evening pass February 8 2008


Shuttle Atlantis is on the way to ISS and at the time these images were taken was some twenty minutes behind the station
More weather problems here , but I get a fleeting glimpse of the complex snatched between clumps of coastal cloud
It is just possible to make out the three individual sections of the truss radiators , especially on the starboard side
Orbit 52808.4
17h55m37s -4.0mag S h:55.4° distance: 407.7km height above Earth: 339.8km

Evening pass December 19 2007


Yesterday's EVA failed to correct the problem with the SARJ on the starboard array
In this small animation we can see the array , still in the fixed position. There is also a striking flare from the starboard truss radiators
Orbit 52003.3
16h50m20s -2.9mag h:41.4° distance: 502.7km height above Earth: 342.8km

Evening pass December 17 2007


Still a bright sky as ISS made a 60 deg pass. The port arrays were edge on to the camera , whilst the starboard , fixed array was well illuminated
Tomorrow an EVA will take place to investigate the starboard S 3 , 4 , 5 SARJ problem
Orbit 51969.4
16h08m15s -3.7mag h:60.8°
range: 390.0km height above Earth: 343.0

Evening pass December 13 2007


Caught at about 56degs elevation with the truss radiators glowing well
-4.2mag Range about 420 km
The dark patch on the port truss radiators appears to be a shadow cast by the fixed starboard array
1754 gmt

ISS Morning pass November 12 2007


Poor weather continues to confound viewing opportunities.Through breaks in cloud and mist Venus and Mars were observed , then a brief glimpse of the new configuration seen at low elevation
The port SARJ appears to be working whilst the starboard side remains fixed.
The new Harmony module is also visible
Range about 600km
0552 gmt

ISS and Endeavour August 2007


Whilst Endeavour is docked to ISS the flight orientation of the station is "reversed".
Following this attitude change it has been noted that brightness has increased to -4 mag , with a noticeable flare from the complex mid way through passes.
So.....where is the flare coming from ?
This animation , captured at a range of about 550km through a break in cloud , pinpoints the source of the increased brightness....the solar panels of the Progress vehicle attached to the rear
port , which in this flight mode is pointing in the direction of flight.

ISS and Endeavour August 9 2007


Both station and Endeavour are sighted this evening , with ISS leading the shuttle by three minutes.
ISS is still in normal attitude whilst the orbiter is in a heads down flight mode.

In the short animation below we see Endeavour moving away from the camera


ISS orbit 49924.0
22h33m23s -2.0mag az:181.5° S h:61.5°
distance: 396.2km height above Earth: 351.0km

Endeavour
22h36m11s -2.1mag az:182.1° S h:60.0°
distance: 380.0km height above Earth: 331.8km



ISS August 8 2007


Slight haze this evening as ISS makes a 56 deg pass 80 minutes prior to the launch of Endeavour. (STS 118 )
Both arrays are visible in Sun tracking mode


Orbit 49907.7 22h10m48s -1.9mag h:55.7°
distance: 420.0km height above Earth: 351.2km



ISS June 8 2007


Evening pass as ISS awaits the launch of Atlantis ( STS117 )
Captured less than an hour before Atlantis launched the station passed over the UK

Of note is the bright reflection from the starboard section of the main truss.This is the truss mounted Canadarm moved adjacent to the radiator , which is in shadow.
The starboard section of the P6 array is also just visible

23h59m36s -2.1m az:181.9d S h:61.1d
dist:392.7km alt:346.4km
Orbit 48946.2



ISS Evening pass April 18 2007


Slightly poorer conditions this evening , but a similar elevation pass to that of the 14th

Picked out nicely is the blueish tint of the port truss radiator with each segment clearly defined.


Orbit 48139.7 21h32m30s -1.8m h:52.8d dist:407.2km alt:329.0km

Just before ISS appeared , another satellite caught my eye as it grew rapidly in brightness , flaring at magnitude plus 1 or greater.
Predicted was only +4.6
After some discussion it was identified as Resurs 01-N4 , a Russian remote sensing spacecraft, some 870km downrange.


21h25m32s 4.6m ENE h:68.7d dist:871.4km alt:818.9km

On the left (above ) a single frame showing Resurs 01-N4 , on the right a short animation covering a period of about 25 seconds



ISS Evening pass April 14 2007


The good spell of weather continues here in the UK with imroved transparency. Conditions are in fact clear enough to reduce the field of view down to about 3.5 arc minutes yielding a little more detail.

Here we see the complex during a 54.5 deg pass with space tourist and U.S. businessman ,Charles Simonyi aboard.

Click for Dr. Simonyi's mission site


At 21h47m07.20s the station passed within half a degree of Saturn , seen here at the same optical magnification

Orbit 48076.8
Transit 21h47m21s -2.0m
h:54.5d dist:399.7km alt:329.6km



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