SB SAT @ AMSAT $ANS-112.01 AMSAT BOOTH AT DAYTON HR AMSAT NEWS SERVICE BULLETIN 112.01 FROM AMSAT HQ SILVER SPRING, MD APRIL 22, 1995 TO ALL RADIO AMATEURS BT BID: $ANS-112.01 AMSAT Returns To Dayton Hamvention This Year Once again this year AMSAT will be participating in the Dayton Hamvention. There will be two forums, one Friday afternoon at 1:00 pm and the other the same time Saturday. Check your Program for room numbers and agenda. We will also have a booth, in the same spot as last year, 445-448. Please stop by and say hello. We will also be holding an AMSAT get-together Friday evening at the Stockyards Inn. We will have to tell them how many sometime late Friday afternoon, so stop by the booth and sign up if you want to join us. Around the Arena, we will be monitoring 145.55. That should be easy to remember. Elsewhere in the Dayton area, we will use the Fairborne repeater on 145.41. Give us a call if you need directions or any other kind of help. We're looking forward to another great Dayton Hamvention. Hope to see many AMSATers there. 73, Bill Tynan W3XO /EX SB SAT @ AMSAT $ANS-112.02 SAFEX MISSION TO MIR HR AMSAT NEWS SERVICE BULLETIN 112.02 FROM AMSAT HQ SILVER SPRING, MD APRIL 22, 1995 TO ALL RADIO AMATEURS BT BID: $ANS-112.02 SAFEX On Upcoming Mir Mission The following information, originated by DL2MDE, was received by Ray Soifer W2RS from GB7HSM and was translated from the German by Gerd Schrick WB8IFM. A meeting was held in Moscow March 24 to 29 on matters relating to the SAFEX Project, with DL3LUM and DL2MDE participating. The discussions centered around the "EUROMIR" Mission scheduled for August 1995. The German Thomas Reiter will spend 135 days on board Mir. He is now preparing in Russia for his Ham Radio license exam and is planning to be active on FM voice & Packet during his flight. Schedules will be set up with schools. Operation will be on 70 CM and 2 meters. The 2m antenna on Mir will soon be replaced with a dual band antenna. SAFEX will provide equipment for the two bands including 9600 baud packet which will be used on 70cm. The German/Russian SAFEX Project lists the frequencies to be used as: 437.975 Packet and 437.925 FM voice for the downlinks and 435.775 for Packet and 435.725 for voice for the uplinks. Thus both offsets will be -2.2 MHz. The call used on 70cm only will be RR0DL. The AMSAT News Service will carry more information on SAFEX as it becomes available. [The AMSAT News Service (ANS) thanks DL7MDE, W2RS and WB8IFM for their part in providing the information for this bulletin.] /EX SB SAT @ AMSAT $ANS-112.03 PRELIM P-3D ORBITAL ELEMENTS HR AMSAT NEWS SERVICE BULLETIN 112.03 FROM AMSAT HQ SILVER SPRING, MD APRIL 22, 1995 TO ALL RADIO AMATEURS BT BID: $ANS-112.03 N2WWD Provides First Set Of Phase-3d Orbital Elements By popular request, N2WWD am providing my estimates for the orbit of Phase 3D. These elements are UNOFFICIAL and are only to be used for visulization purposes. These estimates were made using information from the AMSAT-DL Phase 3D Orbits diagram. N2WWD has modified the initial orbit to an inclination of 7.0 degrees to conform to the APEX 5 launch constraints for the Ariane 5 launch vehicle. N2WWD has estimated a time-independent Earth-Fixed Greenwich (EFG) state vector forthe initial orbital injection: Vector format = 10107 Satellite Name: AMSAT P3D Catalog Number: 99934 Epoch MET: 0.00000000000 0/00:00:00.000 MET EFG E: 6690.568479 km F: 4512.845422 km G: -706.058342 km Edot: -1.964268730 km/s Fdot: 8.228586607 km/s Gdot: -0.993119450 km/s ndot/2 (drag): 0.00000001522 rev/day^2 nddt/6: 0.00000E+00 rev/day^3 Bstar: 2.46671E-05 1/Earth Radii Elset #: 1 Rev @ Epoch: 1.51138979680 One caveat is the "all zeros" Epoch MET is actually relative to the injection time, rather than the launch time that VEC2TLE would normally expect. He "unfortunately" had to do this with the first cut since he didn't have the time elapsed from launch to orbital injection. The following are also for a first cut at the first two burns: BURN #1 (Assumed to occur at the first perigee) MET: 000/10:30:22.345 Intrack: 153.7 m/sec Crosstrack: 0.0 m/sec Radial: 0.0 m/sec BURN #2 (Assumed to occur at the ascending node following burn #1, near apogee) MET: 000/18:07:32.258 Intrack: -374.2 m/sec Crosstrack: 1239.7 m/sec Radial: 114.6 m/sec The corresponding Keplerian elements in AMSAT format, assuming injection on 03-Apr-96 / 00:00 are as follows: INITIAL ORBITAL INJECTION (i = 7 deg, hp = 500 km, ha = 35000 km) Satellite: AMSAT P3D Catalog number: 99934 Epoch time: 96094.00000000 Element set: 1 Inclination: 7.0000 deg RA of node: 0.1471 deg Eccentricity: 0.7160512 Arg of perigee: 178.0284 deg Mean anomaly: 6.0876 deg Mean motion: 2.24345803 rev/day Decay rate: 2.00e-08 rev/day^2 Epoch rev: 1 POST BURN #1 (i = 7 deg, hp = 500 km, ha = 47000 km) Satellite: AMSAT P3D Catalog number: 99934 Epoch time: 96094.43775862 Element set: 2 Inclination: 7.0001 deg RA of node: 0.1471 deg Eccentricity: 0.7698019 Arg of perigee: 178.1741 deg Mean anomaly: 359.7573 deg Mean motion: 1.63753437 rev/day Decay rate: 2.00e-08 rev/day^2 Epoch rev: 2 POST BURN #2 (i = 60 deg, hp = 4000 km, ha = 47000 km) Satellite: AMSAT P3D Catalog number: 99934 Epoch time: 96094.75523447 Element set: 3 Inclination: 60.0203 deg RA of node: 359.6630 deg Eccentricity: 0.6752895 Arg of perigee: 180.1221 deg Mean anomaly: 179.5089 deg Mean motion: 1.51063968 rev/day Decay rate: 2.00e-08 rev/day^2 Epoch rev: 2 [The AMSAT News Service (ANS) would like to thank N2WWD of for contributing this bulletin item.] /EX SB SAT @ AMSAT $ANS-112.03 WEEKLY OSCAR STATUS REPORTS HR AMSAT NEWS SERVICE BULLETIN 112.03 FROM AMSAT HQ SILVER SPRING, MD APRIL 22, 1995 TO ALL RADIO AMATEURS BT BID: $ANS-112.03 Weekly OSCAR Status Reports: 22-APR-95 AO-13: Current Transponder Operating Schedule: The Mode Schedule from 20-FEB-95 until 22-MAY-95 will be: Mode-B : MA 0 to MA 190 |Omnis : MA 250 to MA 140 Mode-BS : MA 190 to MA 218 | Mode-S : MA 218 to MA 220 |<- S beacon only Mode-S : MA 220 to MA 230 |<- S transponder; B trsp. is OFF Mode-B : MA 230 to MA 256 | Blon/Blat 230/0 Note: The Mode-B beacon is ON during the Mode-S transponder operations only. Please do NOT uplink to the B transponder during Mode S only, as it inter- feres with Mode-S operations. [G3RUH/DB2OS/VK5AGR] MIR: There have been numerous reports that Norman Thagard has been active on MIR this week. Note that he and the other cosmonauts operate on local Moscow time and Norman has been active over the U.S. around 11:00 UTC. The AMSAT NEWS Service (ANS) NEEDS YOUR HELP! The ANS looking for volun- teers to contribute weekly OSCAR status reports. If you have a favorite OSCAR which you work on a regular basis and would like to contribute to this weekly bulletin, please send your observations to WD0HHU at his CompuServe address of 70524,2272, on INTERNET at wd0hhu@amsat.org, or to his local packet BBS in the Denver, CO area, WD0HHU @ N0QCU. Also, if you find that the current set of orbital elements are not generating the correct AOS/LOS times at your QTH, PLEASE INCLUDE THAT INFORMATION AS WELL. The information you provide will be of value to all OSCAR enthusiasts. /EX