AMSAT-NA AMSAT News Service

January 17, 1999

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SUNSAT Delta Launch Postponed

Saturday January 16 - LAUNCH OF AIR FORCE DELTA 2 ROCKET POSTPONED UNTIL TUESDAY. An Air Force Delta 2 rocket loaded with a trio of research satellites will remain on earth until at least Tuesday following today's scrubbed launch attempt at Vandenberg Air Force Base, California. Following a weather briefing today, officials made the decision to reschedule the mission for Tuesday during a window of 5:39:52 to 5:48 AM EST (1039:52-1048 UTC). The postponement to Tuesday was based on the need for crew rest and the unlikely improvement in wind conditions over the next day or two, officials said.

Today's attempt was halted because of three problems. As was the case Friday, upper level winds were out of limits. Also, the range was red because of predictions that indicated winds could blow debris from a launch accident outside the safety zone, and a problem with a command destruct transmitter at a downrange tracking station.

The two stage Boeing rocket is carrying the Air Force's Advanced Research and Global Observation Satellite as its primary payload. Two smaller spacecraft, Denmark's ěrsted and South Africa's SUNSAT, are also hitching a ride into low Earth orbit on Delta 226.

[ANS thanks Cliff K7RR and Space on line for this information.]

Miami Hamboree Volunteers Needed

The Miami Tropical Hamboree is quickly approaching (February 6-7, 1999) and we're looking for volunteers to help man the AMSAT booth at the Hamboree. The Hamfest will be held at the Fair Expo Center, SW 112th Avenue & Coral Way (sw 24th Street). Miami is a major hamfest with strong attendance from the Caribbean, Central America, and South America as well as the Southeast US. We need folks to volunteer for a 'tour of duty' during a portion of the Hamboree.

In addition to the exhibit, the hamfest committee has scheduled an AMSAT Forum for the Saturday Afternoon (1500-1600). Check the Hamfest program guide for particulars.

If you are interested in helping out (even if for only an hour), please send Barry Baines an e-mail (wd4asw@amsat.org) and let him know:

  1. What hours are you willing to volunteer (multiples of 1 hour) on Saturday (0900-1700) and/or Sunday (0900-1500)
  2. Your name and callsign and e-mail address.
  3. Any special skills in software, hardware etc.

Miami is a unique opportunity to represent AMSAT to an international audience. If at all possible please consider giving us a hand during this event.

[ANS Thanks Barry Baines for this information.]

Weekly Satellite Report

Mir . RS-12 . RS-13 . RS-15 . RS-16 . RS-18 . AO-10 . AO-27 . FO-20 . FO-29 . KO-23 . KO-25 . UO-11 . AO-16 . DO-17 . WO-18 . LO-19 . UO-22 . IO-26 . TO-31 . GO-32 . SO-33 . PO-34

Mir

SAFEX II 70cm Repeater
Uplink 435.750 MHz FM with subaudible tone 141.3 Hz
Downlink 437.950 MHz FM
Semi-operational
SAFEX II 70cm QSO Mode
Uplink 435.725 MHz FM with subaudible tone 151.4 Hz
Downlink 437.925 MHz FM
Semi-operational.
 
Packet Radio PMS
Uplink/Downlink 145.985 MHz FM, 1200 baud AFSK
Semi-operational due to SSTV transmissions.

The PBBS is running a Kantronics KPC-9612 + V.8.1 TNC. The commands are similar to most PBBS and BBS systems.

MIREX has announced an on going APRS School Days Test. MIREX is allowing schools to use APRS for position and status reports via R0MIR. Non-school stations are asked to refrain from using APRS type transmissions or beacons via R0MIR.

Scott, WA6LIE, has a set of instructions on how to work the Mir space station. Copies of the instructions are available from Scott by e-mail at wa6lie@juno.com, or by packet at wa6lie@wa6lie.#wcca.ca.usa.noam.

[ANS thanks Scott Avery, WA6LIE, and the MIREX team for Mir status information]

RS-12

Uplink 145.910 to 145.950 MHz CW/SSB
Uplink 21.210 to 21.250 MHz CW/SSB
Downlink 29.410 to 29.450 MHz CW/SSB
Downlink 145.910 to 145.950 MHz CW/SSB
Beacon 29.408 MHz
Robot Uplink 21.129 MHz, Downlink 29.454 MHz

Last reported to be semi-operational, beacon only.

RS-13

Uplink 21.260 to 21.300 MHz CW/SSB
Uplink 145.960 to 146.000 MHz CW/SSB
Downlink 29.460 to 29.500 MHz CW/SSB
Downlink 145.960 to 146.000 MHz CW/SSB
Beacon 29.504 MHz
Robot Uplink 21.140 MHz, Downlink 29.458 MHz

Last reported in mode KA (10m downlink, 15m and 2m uplinks).

The RS-12/13 satellite has seen many recent changes in operation during the past weeks. Modes K, T, KT and now mode KA operation have all been reported by a number of stations.

No official word from the satellite controllers has been received. ANS recommends monitoring each satellite carefully to determine the transponder in operation and which mode it is operating in.

RS-12/13 command is now in the hands of Alex Papkov, in Kaluga City, Russia.

RS-15

Uplink 145.858 to 145.898 MHz CW/SSB
Downlink 29.354 to 29.394 MHz CW/SSB
Beacon 29.352 MHz (intermittent)
Semi-operational, Mode A (2m uplink, 10m downlink)

Dave, WB6LLO, reports he has prepared a "quick and dirty" set of operating instructions for RS-15 at the following URL:

http://users.aol.com/dguimont

AO-10

Uplink 435.030 to 435.180 MHz CW/LSB
Downlink 145.975 to 145.825 MHz CW/USB
Beacon 145.810 MHz (unmodulated carrier)
Operational.

AO-10 continues to function well with the exception of the periodic deep QSB, which can be partially eliminated by switching antenna polarization. Strong signals have been heard even at apogee. Also note that AO-10's apogee has passed its most northern point. This gives the satellite track (on a rectangular Mercator map projection) a distinctly symmetrical pattern. The apogee has now begun a slow migration southward.

W4SM tells ANS that he has, using ranging software (and hardware) developed by James Miller, G3RUH, recently made ranging measurements on AO-10 for the last week and have fed these measurements into an algorithm which generates modified Keplerian elements from a "seed" set of elements. The Keplerian elements generated appear to be accurate within 16-25 km.

Satellite: 			AO-10
Catalog number			14129
Epoch time			99011.95911000
Element set			    4
Inclination			   27.1123	deg
RA of node			   48.7076	deg
Eccentricity			    0.6010746
Arg of Perigee			  281.7573	deg
Mean Anomaly			   69.6767	deg
Mean Motion			    2.05864167	rev/day
Decay Rate			    0.00000e+00	rev/day^2
Epoch rev			11717
checksum			  272

NASA 2-line format:

AO-10
1 14129U 83058B   99011.95911000   .00000000   00000-0   55544-5 0    41
2 14129  27.1123  48.7076 6010746  281.7573   69.6767   2.05864167117171

Stacey Mills, W4SM, has more information about the satellite at the following URL:

http://www.cstone.net/~w4sm/AO-10.html

[ANS thanks Stacey Mills, W4SM, for his AO-10 status information and web site]

AO-27

Uplink 145.850 MHz FM
Downlink: 436.792 MHz FM
Operational.

[ANS thanks Michael Wyrick, N4USI, for AO-27 information]

JAS-1b FO-20

Uplink 145.900 to 146.000 MHz CW/LSB
Downlink 435.800 to 435.900 MHz CW/USB
Operational.

FO-20 in mode JA continuously.

[ANS thanks Kazu Sakamoto, JJ1WTK for the FO-20 status reports]

FO-29

Voice/CW Mode JA
Uplink 145.900 to 146.000 MHz CW/LSB
Downlink 435.800 to 435.900 MHz CW/USB
Operational.
 
Digital Mode JD
Uplink 145.850, 145.870, 145.910 MHz FM
Downlink 435.910 MHz FM 9600 baud BPSK
Not operational, the satellite is in JA (voice) mode.

The present JA mode of operation will continue to investigate the frequency of bit errors in the on-board-computer. Reports from Amateurs on the value of channel 2A are appreciated. The position of 2A is the fifth item after 'HI HI' in CW telemetry. The normal value is '00'. Reports should be sent to lab@jarl.or.jp.

The FO-29 Command Team says digital (JD) mode operation may be available soon. Digi-talker operation is also being planned.

[ANS thanks Kazu Sakamoto, JJ1WTK, for this report.]

KITSAT KO-23

Uplink 145.850, 145.900 MHz FM
Downlink 435.175 MHz FM, 9600 Baud FSK
Operational.

AA7KC reports KO-23 is operational, returning to full service on January 4th. KyungHee Kim, on behalf of the KITSAT command team, reported to ANS that the downlink transmitter on KO-23 was tripped recently. He reports the problem has happened several times for unknown reasons.

[ANS thanks Jim Weisenberger, AA7KC, for KO-23 status information]

KO-25

Uplink 145.980 MHz FM
Downlink 436.500 MHz FM, 9600 Baud FSK
Operational.

[ANS thanks Jim Weisenberger, AA7KC, for KO-25 status information]

UO-22

Uplink 145.900 or 145.975 MHz FM
Downlink 435.120 MHz FM 9600 Baud FSK
Operational.

Chris, G7UPN, tells ANS that the OBC186 flight software on UO-22 crashed recently after operating for well over 500 days. The software re-load has now been completed.

More information on the satellite is available at the following URL:

http://www.ee.surrey.ac.uk/EE/CSER/UOSAT/

[Chris Jackson, G7UPN/ZL2TPO, is the Operations Manager of UO-22]

OSCAR-11

Downlink 145.825 MHz FM, 1200 baud PSK
Beacon 2401.500 MHz
Operational.

Telemetry has been nominal.

The mode-S beacon is ON, transmitting an unmodulated carrier, but telemetry indicates that it has partially failed, and delivering half power. This beacon is a useful test source for those testing mode-S converters, prior to the launch of P3-D. The 435.025 MHz beacon is normally off.

More information about OSCAR 11 can be found at the following URL:

http://www.users.zetnet.co.uk/clivew/

Beacon reception reports should be sent to: g3cwv@amsat.org

[ANS thanks Clive Wallis, G3CWV, for this information.]

AMSAT-OSCAR-16 (PACSAT)

Uplink 145.900, 145.920, 145.940, 145.860 MHz FM, 1200 bps Manchester FSK
Downlink 437.0513 MHz SSB, 1200 bps RC-BPSK 1200 Baud PSK
Beacon 2401.1428 MHz.)
Operating normally.

The AO-16 command team has authorized an APRS experiment on AO-16 to explore the use of the 1200-baud PACSAT for APRS position/status reporting. The test periods will run each Tuesday from 0000 to 2359 UTC.

Telemetry is nominal.

General information and telemetry WOD files can be found at http://www.ctv.es/USERS/ea1bcu

Telemetry WOD graphics corresponding to Dec-30 can be found at http://www.ctv.es/USERS/ea1bcu/wod.htm

A complete collection of WOD graphics corresponding to the year of 1998 can be found at http://www.ctv.es/USERS/ea1bcu/wod1998.zip

[ANS thanks Miguel A. Menendez, EA1BCU, for this report.]

LUSAT-OSCAR-19

Uplink 145.840, 145.860, 145.880, 145.900 MHz 1200 bps Manchester FSK
Downlink 437.125 MHz SSB, 1200 bps RC-BPSK
Currently semi-operational.

No BBS service. On Board Computer reload in progress. The digipeater is active.

General information and telemetry samples can be found at http://www.ctv.es/USERS/ea1bcu/lo19.htm

[ANS thanks Miguel A. Menendez, EA1BCU, for this report.]

ITAMSAT IO-26

Uplink 145.875, 145.900, 145.925, 145.950 MHz FM
Downlink 435.822 MHz SSB, 1200 Baud PSK
Semi-operational.

Telemetry is reported as being received on 435.822 MHz at 1200 baud PSK.

ANS has not received any recent updates concerning the status of IO-26. No additional information is available at this time.

TMSAT-1 TO-31

Downlink 436.923 MHz

TMSAT-1 is now open for general access by Amateur Radio operators worldwide. Normal access will allow operators to use the store and forward communications on the spacecraft and also download the high-resolution multispectral images.

Chris, G7UPN, tells ANS that during software loading (and other command activities) ground control stations may close the satellite BBS to general users. This ensures that command activity is not obstructed or slowed by user traffic. This also allows ground control stations to complete these activities much quicker.

[ANS thanks Chris Jackson, G7UPN/ZL2TPO, for this report]

TechSat-1B GO-32

Downlink 435.325 435.225 MHz
HDLC telemetry framed so a TNC in KISS mode will decode it

The TechSat-1B micro-satellite was successfully launched from the Russian Baikonur Cosmodrome on July 10, 1998. The satellite is expected to be available for general amateur use in the future.

ANS has not received any recent updates concerning the current status of GO-32. No additional information is available at this time.

The satellite does not have a continuous beacon, but does transmit a 9600-baud burst every 30 seconds (for about 3 seconds in length), currently on 435.225 MHz.

The TechSat team has also constructed a home page about the TechSat bird, and promise they will add more information in the next few weeks. To view the site, point your web browser to:

http://techsat.internet-zahav.net/

[ANS thanks Shlomo Menuhin, 4X1AS for this information]

SEDSAT SO-33

Downlink 437.910 MHz FM 9600 Baud FSK
The satellite is not currently available for uplink transmissions.

SEDSAT-1, signifying Students for the Exploration and Development of Space Satellite number one, was successfully launched and placed in orbit on Saturday, October 24, 1998.

SedSat is continuing to perform as it has since launch, transmitting telemetry until the batteries are depleted and then going into safe mode (for about ten hours) and then repeating the process. "The orbital geometry is such that we have had as much as 120 hours of continuous operation from the bird before the batteries die," said Dennis, KD4ETA. Recovery efforts continue.

For more information on SedSat-1, including Version 1.2 of the SedSat ground station software -- visit the satellite web site at the following URL:

http://www.seds.org/sedsat

[ANS thanks Dr. Mark Maier, KF4YGR, for this information]

PANSAT PO-34

Downlink frequency not established.
The satellite is not currently available for uplink transmissions.

PANSAT, developed by the Naval Postgraduate School, was launched from the shuttle Discovery. PANSAT spread-spectrum digital transponders will be available to amateur radio operators in the near future along with software to utilize this technology. The PO-34 command station is located in Monterey, California.

Dan Sakoda, KD6DRA, PANSAT Project Manager recommends 'The ARRL Spread Spectrum Sourcebook' as a good place to start in understanding the spread-spectrum scheme.

The PANSAT Team does not expect the satellite to be available to the Amateur Radio community for another few months.

For more information, visit the official PANSAT web site at:

http://www.sp.nps.navy.mil/pansat/

[ANS thanks Dan Sakoda, KD6DRA, for this information]

The following satellites are non-operational at this time:

RS-16

Attempts to command the mode A transponder 'on' have been unsuccessful to date. At this time the RS-16 transponder is non-operational. The 435 MHz beacon (only) is operational.

No additional information is available at this time.

RS-18 (Sputnik 41)

Russian cosmonauts successfully launched RS-18/Sputnik 41 on November 10, 1998, during a spacewalk from the Mir space station. The satellite stopped transmitting early on December 11, 1998, meeting the 30 day projected lifetime. If the Goddard Space Flight Center forecast is correct, RS-18/Sputnik 41 should have re-entered and burned up in the atmosphere on January 7, 1999.

A computer .wav file of the actual received signal can also be found at:

http://www.ik1sld.org/sputnik41.htm

Gerard, F6FAO, suggests the following address for RS-18 QSL requests:

AMSAT-France
RS-18 QSL Manager
14 bis rue des Gourlis
92 500 Rueil-Malmaison
France

The list of received QSL's by the French QSL manager is available at the following link (note: the list changes daily as cards are received):

http://ourworld.compuserve.com/homepages/ascerland/sp41QSL.htm

DO-17 (DOVE)

Downlink 145.825 MHz FM, 1200 Baud AFSK
Beacon 2401.220 MHz
Non-operational.

DOVE stopped transmitting in March 1998. The 145.825 MHz and 2401.220 MHz downlinks are off the air and the satellite has not responded to ground station control. Command stations will again attempt contact in the near future.

When the satellite is operating, QSL cards for receiving DOVE may be obtained from:

Dianne White, N0IZO
45777 Rampart Road
Parker, Colorado 80138-4316
USA

Dianne has received a few cards recently for what apparently is UO-11. Dianne handles cards for DOVE (DO-17) only.

No additional information is available at this time.

WEBERSAT (WO-18)

Downlink 437.104 MHz SSB, 1200 Baud PSK AX.25
Non-operational.

WO-18 is reported to be in MBL mode after a software crash.

No additional information is available at this time.

[Please send any amateur satellite news or reports to the ANS Editors at ans-editor@amsat.org, or to ANS Editor Dan James, NN0DJ, at nn0dj@amsat.org.]

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This week's AMSAT News Service bulletins were edited by AMSAT News Service Editor Dan James, NN0DJ, nn0dj@amsat.org.

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