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The space junk NODES 1 is forecast to reentry Friday, 22 Sep 2017 at 21:40 UTC +/- 8 hours
NODES 1

Forecast of Reentry Location


Update Thu 24-Aug-2017 7:13 UTC

The map above shows the location of the possible reentry of the space junk NODES 1 (41478U) 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 21:40 UTC, above the coordinates shown on map.

Satellite Launch Norad Incl.
degrees
Apogee
Km
Perigee
Km
Period
min
Options
SL-04 R/B
Reentry: (YMD) 2017-08-1
201742899U5215815288Reentered!
Forecast
CZ-3B R/B
Reentry: (YMD) 2017-08-17
201238253U5525711888Reentered!
Lat=-19.6   Lon=227.2
ATLAS 5 CENTAUR R/B
Reentry: (YMD) 2017-08-27
201540486U255720102149Forecast
SL-18 R/B
Reentry: (YMD) 2017-09-1
200629080U9823422589Forecast
INFLATESAIL
Reentry: (YMD) 2017-09-4
201742770U9743042593Forecast
TUPOD
Reentry: (YMD) 2017-09-7
199841936U5230529691Forecast
NODES 2
Reentry: (YMD) 2017-09-20
199841477U5229328590Forecast
NODES 1
Reentry: (YMD) 2017-09-22
199841478U5229628990Forecast
FALCON 9 R/B
Reentry: (YMD) 2017-09-24
201641472U249391112195Forecast
FLOCK 2E'-7
Reentry: (YMD) 2017-10-2
199841570U5234033591Forecast
IRIDIUM 30 [+]
Reentry: (YMD) 2017-10-8
199724949U8664419393Forecast
ISS DEB
Reentry: (YMD) 2017-10-12
199842434U5236435892Forecast
TANCREDO-1
Reentry: (YMD) 2017-10-13
199841931U5234734291Forecast
FIREFLY
Reentry: (YMD) 2017-10-31
201339404U4033031891Forecast
ISS DEB
Reentry: (YMD) 2017-11-3
199842697U5237937192Forecast
IRIDIUM 43 [-]
Reentry: (YMD) 2017-11-25
199725039U8663625293Forecast
CZ-4B DEB
Reentry: (YMD) 2017-12-7
200833411U9736435992Forecast
OSNSAT
Reentry: (YMD) 2017-12-25
199841939U5237036392Forecast
STARS-C
Reentry: (YMD) 2018-01-15
199841895U5237737192Forecast
MINOTAUR R/B
Reentry: (YMD) 2018-01-15
200629053U7233132891Forecast
COLUMBIA
Reentry: (YMD) 2018-01-23
199842702U5239438492Forecast
ISS DEB (ROSA)
Reentry: (YMD) 2018-01-26
199842813U5240139393Forecast
GSLV R/B
Reentry: (YMD) 2018-01-31
201540881U206345143157Forecast
FLOCK 2E'-12
Reentry: (YMD) 2018-02-4
199841578U5235134692Forecast
AGGIESAT 4
Reentry: (YMD) 2018-02-5
199841313U5234133791Forecast
ATLANTIS
Reentry: (YMD) 2018-02-9
199842737U5239838692Forecast
FLOCK 2E'-9
Reentry: (YMD) 2018-02-9
199841575U5235034691Forecast
LEMUR-2-TRUTNA
Reentry: (YMD) 2018-02-11
199842067U5238337492Forecast
FLOCK 2E'-4
Reentry: (YMD) 2018-02-11
199841482U5234634491Forecast
TIANGONG 1
Reentry: (YMD) 2018-02-18
201137820U4333731191Forecast
SGSAT
Reentry: (YMD) 2018-02-22
199842703U5239438992Forecast




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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