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 Post subject: Tiangong 1
PostPosted: February 19th, 2018, 3:49 am 
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Joined: October 12th, 2009, 3:28 pm
Posts: 4122
Location: Baton Rouge, LA
The defunct orbiting Chinese outpost is fast losing altitude. There are only a few more times to see it, including...
this morning, ~6:07am to 6:12am
tomorrow, ~6:02am to 6:06am

Confirm with Heavens Above.


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 Post subject: Re: Tiangong 1
PostPosted: March 10th, 2018, 6:57 pm 
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Joined: October 12th, 2009, 3:28 pm
Posts: 4122
Location: Baton Rouge, LA
For Monday, Tuesday and Wednesday evening we have from Heavens Above three very nice visible passes--possibly the last to be seen from the Baton Rouge area...
*12 March = 8:10pm CDT to 8:12pm CDT / NW to NE / maximum altitude 33˚ NE / magnitude 1.1
*13 March = 7:58pm CDT to 8:01pm CDT / NW to SE / maximum altitude 58˚ NE / magnitude 0.2
*14 March = 7:45pm CDT to 7:50pm CDT / NW to SE / maximum altitude 75˚ SW / magnitude 0.2

Please confirm for your exact location by visiting Heavens Above. Your location's brightness prediction may differ by two-tenths of a magnitude, and the maximum altitude prediction may differ by as much as ten degrees.

Heavens Above:
http://www.heavens-above.com


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 Post subject: Re: Tiangong 1
PostPosted: March 12th, 2018, 3:47 pm 
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Joined: October 12th, 2009, 3:28 pm
Posts: 4122
Location: Baton Rouge, LA
Here are the revised estimates from Heavens Above for tonight, tomorrow and Wednesday; these estimates will not be updated again...
*12 March = 8:10pm CDT to 8:12pm CDT / NW to NE / maximum altitude 32˚ NE / magnitude 1.1
*13 March = 7:57pm CDT to 8:00pm CDT / NW to E / maximum altitude 56˚ NE / magnitude 0.3
*14 March = 7:44pm CDT to 7:48pm CDT / NW to SE / maximum altitude 79˚ SW / magnitude 0.1

More information:
http://www.skyandtelescope.com/observing/last-chance-to-see-tiangong-1-space-station-before-re-entry/


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 Post subject: Re: Tiangong 1
PostPosted: March 14th, 2018, 2:12 pm 
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Joined: October 12th, 2009, 3:28 pm
Posts: 4122
Location: Baton Rouge, LA
I saw Tiangong 1 Monday night; boy, was it moving! I saw it also last night, and that time I remembered to have my Orion 10x50 Explorer in hand. Remember, it won't get above thirty degrees altitude again until 16 April--if it's still orbiting.


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 Post subject: Re: Tiangong 1
PostPosted: March 24th, 2018, 7:00 pm 
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Joined: April 4th, 2012, 5:32 pm
Posts: 17
Tiangong-1 will reentering Earth's Atmosphere soon.

Current prediction: April 1 +/- 3 days.
Apogee: 233 km
Perigee: 212 km

This prediction was made by Aerospace Corporation on March 22, 2018.
Tiangong-1's reentry page: http://www.aerospace.org/cords/reentry-predictions/tiangong-1-reentry/


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 Post subject: Re: Tiangong 1
PostPosted: March 26th, 2018, 4:33 pm 
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Joined: October 12th, 2009, 3:28 pm
Posts: 4122
Location: Baton Rouge, LA
There are more possibilities, according to Heavens Above, for catching Tiangong 1 from Baton Rouge; at least, there will be other chances if the sky is clear.

These estimates will not be updated; they are accompanied by the forecast from NOAA for that hour...
*27 March = 6:32am CDT to 6:36am CDT / SW to NE / maximum altitude 60˚ SE / magnitude 0.2
NOAA forecast for 6am...
precipitation potential, 11%
sky cover, 97%
relative humidity, 90%
temperature, 20˚C
surface wind, SE 16 km/h

BAD

*28 March = 6:08am CDT to 6:11am CDT / SW to NE / maximum altitude 77˚ SE / magnitude -0.3
NOAA forecast for 6am...
precipitation potential, 11%
sky cover, 74%
relative humidity, 100%
temperature, 19˚C
surface wind, SE 11 km/h

POOR

*29 March = 5:44am CDT to 5:45am CDT / NE to NE / maximum altitude 35˚ NE / magnitude 1.4
NOAA forecast for 5am...
precipitation potential, 37%
sky cover, 81%
relative humidity, 93%
temperature, 21˚C
surface wind, S 13 km/h

BAD


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 Post subject: Re: Tiangong 1
PostPosted: March 28th, 2018, 10:31 am 
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Joined: April 4th, 2012, 5:32 pm
Posts: 17
Aerospace Corporation has again refined their estimate.

UTC time: Sunday, April 1, 2018, 04:35 UTC +/- 24 hours
Local time: Saturday, March 31, 2018, 11:35 pm CDT +/- 24 hours

Aerospace Corporation Link: http://www.aerospace.org/cords/reentry-predictions/tiangong-1-reentry/


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 Post subject: Re: Tiangong 1
PostPosted: March 28th, 2018, 10:09 pm 
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Joined: April 4th, 2012, 5:32 pm
Posts: 17
New estimate made:

UTC time: April 1, 2018, 07:15 UTC +/- 20 hours
Local time: April 1, 2018, 2:15 am CDT +/- 20 hours


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 Post subject: Re: Tiangong 1
PostPosted: March 29th, 2018, 7:44 am 
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Joined: April 4th, 2012, 5:32 pm
Posts: 17
Prediction released around 7:40 am CDT

UTC time: Sunday, April 1, 10:30 UTC +/- 16 hours
Local time: Sunday, April 1, 5:30am CDT +/- 16 hours

http://www.aerospace.org/cords/reentry-predictions/tiangong-1-reentry/


Last edited by Amy Brouillette on March 29th, 2018, 1:55 pm, edited 1 time in total.

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 Post subject: Re: Tiangong 1
PostPosted: March 29th, 2018, 1:16 pm 
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Joined: October 12th, 2009, 3:28 pm
Posts: 4122
Location: Baton Rouge, LA
Tom sent me the link below. Apparently someone obtained a radar image last week. Watch all major astronomy and space news sites and this site for continuing new information.

The image:
http://www.esa.int/spaceinimages/Images/2018/03/Spotted_in_space


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