Posts by hvdh

  • Unknown signal from around 98e-99e

    I think the signals in high band are ChinaSat 11, or maybe ShenTong-2E testing (see below).


    Although there is no public frequency plan, ChinaSat-11 has transponders in both 11.45...11.7 and 12.25...12.75 GHz bands.

    See for example here (Indonesian): https://www.facebook.com/group…mment_id=1194728690894571

    "The Old transponder on ChinaSat 11 at 98.0°E to one is 12600 v 43200 total channel 45 and the second transponder is 12650 v 43200 as well as 45 channels. In June 2020 the second TP was off due to a disruption to my band's network."

    Probably as so often there are pairs of transponders available of opposite polarisation, so 12600 both in H and V.


    Since August, ChinaSat 11 has moved a bit from 98.0°E to 97.9°E.

    This was to give room for the new ShenTong-2E (ChinaSat-2E), that arrived at 98.0°E (or 98.05°E) also in August.

    Inclination is just 0.2°, probably In-Orbit Testing is still going on.

    At 98.25°E there was already ShenTong-2A (ChinaSat-2A).


    ShenTong are military satellites, presumably using Ku-band but I've never seen any signals reported from this satellite series.

    It's a bit unfortunate that ShenTong satellites are also simply called ChinaSat, suggesting they are from China Satcom with commercial use, but they really are of the PLA (People's Liberation Army).

  • 12.5°W Eutelsat 12 West E (incl.)

    This satellite (incl. 0.7°) is now called Eutelsat 12 West E, the former Afghansat 1 / Eutelsat 48D.


    At 12.5°W there is also Eutelsat 12 West F (incl. 4.4°), the former Eutelsat 36A, that has only the 11.7...12.5 GHz band.

  • 32.9°E Galaxy 25 (incl.)

    Galaxy 25 (incl. 3.0°) is now co-locating with Galaxy 14 (incl. 0.5°) that arrived at 32.9°E a couple of days ago.

    G-14 has the same C-band frequency plan, though polarisation can be switched to the opposite if needed.

    Intelsat ephemeris says that on 24 August, Galaxy 25 should start to drift East.

  • 47.7°E Eutelsat Quantum

    Thanks satesco. I corrected location to 47.7°E.

    Note that these carrier frequencies may not be the centers of actual transponders.

    Probably, very wideband (240 MHz or more) transponders are involved where they uplink test carriers, in a grid 100 MHz apart.

    And if I understood well, the transponder frequency ranges themselves are also flexible.

    Maybe someday, a wideband noise will be uplinked that reveal real transponder bandwidths.

  • 96.5°E Express-103

    Express-103 at 96.5°E must have taken over all services of Express-AM33.

    Because according latest TLE, Express-AM33 is moving 1.0°W/day, near 94.5°E now.

  • 74.9°E ABS-2 (?)

    This one stays a mystery!

    I suppose you are sure, it is not 74.9°E ABS-2, that has unspecified Ka-band?

    Since 2019 there is also GSat-11, but that one has only 19.7...20.2 GHz.

  • 33.4°E (Incl.) Skynet 4C

    Skynet 4C (incl. 14°) has moved a bit during the last few weeks to about 33.85°E, exact slot to be confirmed.

    Apparently this was done to free the 33.4°E slot for ABS-7 (incl. 1.6°) that just arrived here.

    ABS-7 has both Ku- and Ka-band (C) payload, so probably ABS-7 will do military Ka-band services from here.

  • 99.0°W Galaxy 16

    Hello duck77, I knew you can get all these Galaxy's from satellites.co.uk, and let my satellite page end at 100°W for this reason.

    The official footprint seems a bit pessimistic!