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The space junk TUPOD is forecast to reentry Friday, 22 Sep 2017 at 19:22 UTC +/- 8 hours
TUPOD

Forecast of Reentry Location


Update Sat 24-Jun-2017 7:10 UTC

The map above shows the location of the possible reentry of the space junk TUPOD (41936U) predicted by modeling of orbital evolution until the fragment or satellite reaches the altitude of nominal burst.

According to the forecast made by Satview.org, the object's reentry will occur in Friday, 22 Sep 2017 at 19:22 UTC, above the coordinates shown on map.

Satellite Launch Norad Incl.
degrees
Apogee
Km
Perigee
Km
Period
min
Options
CZ-4B R/B
Reentry: (YMD) 2017-05-28
201440120U9815313687Reentered!
Lat=15.7   Lon=326
DRAGON CRS-11 DEB
Reentry: (YMD) 2017-06-9
201742746U5227118989Reentered!
Forecast
DRAGON CRS-11 DEB
Reentry: (YMD) 2017-06-9
201742745U5217815388Reentered!
Forecast
SL-4 R/B
Reentry: (YMD) 2017-06-17
201742757U5216515688Reentered!
Lat=46.5   Lon=23.5
LEMUR-2-DRMUZZ
Reentry: (YMD) 2017-06-25
201641595U5222420589Forecast
CZ-3B R/B
Reentry: (YMD) 2017-07-14
201641726U283142125119Forecast
KZ-1A R/B
Reentry: (YMD) 2017-07-15
201741916U9832722090Forecast
CZ-3A R/B
Reentry: (YMD) 2017-07-21
200731116U556725115161Forecast
TECHEDSAT 5
Reentry: (YMD) 2017-07-27
199842066U5234033191Forecast
FLOCK 2E-8
Reentry: (YMD) 2017-08-8
199841566U5228627890Forecast
FALCON 9 R/B
Reentry: (YMD) 2017-09-19
201641472U2422551130391Forecast
SL-18 R/B
Reentry: (YMD) 2017-09-21
200629080U9828828490Forecast
TUPOD
Reentry: (YMD) 2017-09-22
199841936U5235334692Forecast
NODES 2
Reentry: (YMD) 2017-10-15
199841477U5232232191Forecast
NODES 1
Reentry: (YMD) 2017-10-17
199841478U5232432291Forecast
CZ-3B R/B
Reentry: (YMD) 2017-10-28
201238253U552173144109Forecast
ISS DEB
Reentry: (YMD) 2017-11-25
199842434U5238537892Forecast
TANCREDO-1
Reentry: (YMD) 2017-12-2
199841931U5236836192Forecast
ISS DEB
Reentry: (YMD) 2017-12-22
199842697U5239739092Forecast
FIREFLY
Reentry: (YMD) 2018-01-1
201339404U4034433691Forecast




The Satellite Path


The path to be followed by satellite (dotted line) does not change due to the fact that the satellite is falling and can be used to assess the trajectory of the object before and after possible fall. In the graph, each point marks the range of 1 minute.

Solar Flux and Other Variables


As much as the institutes and space agencies strive to provide correct data of the point where the space debris will fall, several factors may interfere with the accuracy of the prediction. Among the most important, the solar flux is the most critical because it determines the conditions of the upper atmosphere, increasing or decreasing the drag on the object.

Besides the solar flux acting on the aerodynamic characteristics, another variable rather difficult to be computed is the resistance of materials used in the construction of the object and the shape of the structure. Combined, these factors may determine different altitudes for the moment of rupture, causing errors of more than 30 km in altitude reentry provided.

Other variables that affect the calculation of reentry, although less important, are the gravitational perturbations of the Sun and Moon and also those exercised by large mountain ranges, above or below sea level.

The modeling used by Satview to compute the time of reentry uses solar flux data obtained at the time of modeling, and prediction of the behavior of the sun for the next 5 days. With this, the margin of error of prediction is + / - 3 revolutions for satellites or debris in uncontrolled reentry.

Altitude of Reentry


Spacecraft reentering the atmosphere without control usually break between 72 and 84 km altitude due to temperature and aerodynamic forces acting on the structure.

The nominal breakup altitude is 78 km, but big satellites that have larger and denser structures survive longer and break down at lower altitudes. Usually, solar panels are destroyed before any component, at altitudes between 90 and 95 km.

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