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Author Topic: CIS Cosmos sat  (Read 560 times)
Josh
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« on: August 08, 2017, 0324 UTC »

149.375MHz fm fsk 0313Z 08Aug17


COSMOS 2454 in a secret Russian military spacecraft believed to be Parus navigation satellite for the Russian Defense Ministry. Parus satellites circle Earth in 620-mile-high (1,000-km-high) orbits over the poles. The new Parus spacecraft will likely be renamed Kosmos 2454 when it joins Russia's military satellite fleet.
https://www.n2yo.com/satellite/?s=35635

Description: A chain of five satellite receivers observes signals from the Russian Low Earth Orbit (LEO) satellites. Two signals transmitted coherently at frequencies 150 MHz and 400 MHz are received and their phase difference is used to calculate the ionospheric electron density by means of statistical inversion. The results are shown in terms of electron density plots in a vertical plane above the receiver chain. In an ideal case the satellite flies along the chain. If this is not the case, the plot is a projection from regions outside the vertical plane. In order to estimate the validity of the results, check the satellite path in each case. 
http://www.sgo.fi/Data/Tomography/tomoDescr.php
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sat_dxer
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« Reply #1 on: August 08, 2017, 1440 UTC »

Kosmos 2454 was launched on 21 July 2009
Orbit: 915 x 944 km 82.6° inclination
(typical 950 km × 1005 km, 82.9°)
The next in this series Kosmos 2463 was launched on 27 April 2010.

The Parus (Russian word for Sail) program began in 1974 with the launch of Kosmos 700

They are reported by various sources it acts as data relays for the US-P (EORSAT) ocean surveillance satellites.
« Last Edit: August 12, 2017, 1832 UTC by sat_dxer » Logged

Most times & frequencies posted are only an approximation.
Due to the insubstantiality of any “control list” or other designator codes, they are never used.
-30-
Josh
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« Reply #2 on: August 08, 2017, 1745 UTC »

It musta passed right overhead, it came in, built strength, faded abruptly, and came back in for a bit. Haven't heard a russkii satskii in ages, last time was in the late 80s on 150.0MHz. Need to get the v/uhf sdr going on these sigs and see if any decoders will reveal anything.
Apparently the actual qrg is 149.940.
« Last Edit: August 08, 2017, 1806 UTC by Josh » Logged
Josh
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« Reply #3 on: August 11, 2017, 0306 UTC »

149.940MHz fm fsk 0300Z 10Aug17
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Josh
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« Reply #4 on: August 12, 2017, 1530 UTC »

149.940MHz fm fsk 1516Z 12Aug17
Long pass this time, musta been right over head.
« Last Edit: August 12, 2017, 1532 UTC by Josh » Logged
sat_dxer
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« Reply #5 on: August 12, 2017, 1846 UTC »

A useful link:
http://web.archive.org/web/20130626213107/http:/www.alancordwell.co.uk/satellite/russian/index.php

Consider using some current Two Line Elements in a tracking software program to see which one was "right over head"
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Most times & frequencies posted are only an approximation.
Due to the insubstantiality of any “control list” or other designator codes, they are never used.
-30-
Josh
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« Reply #6 on: August 12, 2017, 1901 UTC »

Thanks for the link. Was wondering where I could go to see what bird was singing.
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Josh
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« Reply #7 on: August 13, 2017, 1726 UTC »

Kosmos2454 was overhead around noontime here. The track was pretty much right overhead.
https://www.n2yo.com/satellite/?s=35635
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