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● (No.235) Phase-3D に関するデータ情報収集 (2000年11月15日)
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☆ P3D シミュレーションに基づく予想軌道要素
http://www.jamsat.or.jp/
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P3Dアップデート [JAMSAT]
JAMSAT 日本アマチュア衛星通信協会
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Sun, 12 Nov 2000
James R Miller [g3ruh@jrmiller.demon.co.uk]
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Dear Friends,
Based on the most recent simulation data from ArianeSpace, here are our
prospective P3D osculating keplerian elements assuming lift-off at
2000 Nov 15 [Wed] 0107 utc:
P3D
1 26999U 00320X 00320.07628064 .00000000 00000-0 10000-4 0 03076
2 26999 6.5020 246.6194 7356797 175.9190 13.3981 2.02657824 09
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(注：下記は、11月15日公表の最新の軌道要素)
P3D
1 93400U 00320.07636550 .00000001 00000-0 12567-4 0 13
2 93400 6.5034 246.6469 7357988 175.9296 13.3886 2.02435417 17
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For every minute or day lift-off is later than 2000 Nov 15 [Wed]
0107 utc:
1分遅れる 一日遅れる
毎に 毎に
Epoch Time に加算 0.0006944 1.0
RAAN に加算 0.2507 0.9856
The 435.450 MHz PSK beacon is programmed to come on at MA=59 (/256).
This equates to ~3 hours after lift-off, 0407:10 utc plus launch delay
offset.
There are at least five other objects in this launch; ranging will
resolve which is P3D within a few orbits.
"P3D", "26999" and "00320X" are temporary identifiers.
73 - Amsat P3D Launch Team
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☆ P3D 周波数バンドプラン
http://www.amsat-dl.org/p3dqrg.html
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Official Transponder Frequency Bandplan for P3-D
last revised on 20. August 1998
After several iterations and as a result of intensive research and
discussions with all involved transponder builders, the P3-D Project
Manager Dr. Karl Meinzer, DJ4ZC gave his final OK to the P3-D
Transponder frequencies.
They have been carefully selected to minimize mutual interferences with
other satellite projects and are also coordinated with IARU bandplans
by the P3-D Frequency Coordinator, Freddy de Guchteneire, ON6UG, with
the help of Peter Guelzow, DB2OS and Werner Haas DJ5KQ.
P3-D Uplink Frequencies
UPLINK Digital Analog Passband
15 m none 21.210 - 21.250 MHz
12 m none 24.920 - 24.960 MHz
2 m 145.800 - 145.840 MHz 145.840 - 145.990 MHz
70cm 435.300 - 435.550 MHz 435.550 - 435.800 MHz
23cm(1) 1269.000 - 1269.250 MHz 1269.250 - 1269.500 MHz
23cm(2) 1268.075 - 1268.325 MHz 1268.325 - 1268.575 MHz
13cm(1) 2400.100 - 2400.350 MHz 2400.350 - 2400.600 MHz
13cm(2) 2446.200 - 2446.450 MHz 2446.450 - 2446.700 MHz
6cm 5668.300 - 5668.550 MHz 5668.550 - 5668.800 MHz
P3-D Downlink Frequencies
DOWNLINK Digital Analog Passband
2m 145.955 - 145.990 MHz 145.805 - 145.955 MHz
70cm 435.900 - 436.200 MHz 435.475 - 435.725 MHz
13cm(1) 2400.650 - 2400.950 MHz 2400.225 - 2400.475 MHz
13cm(2) 2401.650 - 2401.950 MHz 2401.225 - 2401.475 MHz
3cm 10451.450 - 10451.750 MHz 10451.025 - 10451.275 MHz
1.5cm 24048.450 - 24048.750 MHz 24048.025 - 24048.275 MHz
P3-D Telemetry Beacons (IHU)
BEACON General Beacon(GB) Middle Beacon(MB) Engineering Beacon(EB)
2 m none 145.880 MHz none
70cm 435.450 MHz 435.600 MHz 435.850 MHz
13cm(1) 2400.200 MHz 2400.350 MHz 2400.600 MHz
13cm(2) 2401.200 MHz 2401.350 MHz 2401.600 MHz
3cm 10451.000 MHz 10451.150 MHz 10451.400 MHz
1.5cm 24048.000 MHz 24048.150 MHz 24048.400 MHz
Remarks:
* All Receivers are inverting!
* Telemetry Beacons are for command purposes and are modulated in 400
Bit/s BPSK, AMSAT format.
* The MB can be switched between IHU-1 or IHU-2 telemetry.
Char. Freq. Rem.
T 21MHz Uplink
H 24MHz Uplink
V 145MHz Uplink, Downlink
U 435MHz Uplink, Downlink
L 1.2GHz 2-Uplink, L1 & L2
S 2.4GHz 2-Uplink, 2-Downlink, S1 & S2
C 5.6GHz Uplink
X 10GHz Downlink
K 24GHz Downlink
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☆ P3D テレメトリデコーダー
http://www.cstone.net/~w4sm2/software2/P3t_AP.zip
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Date: Sat, 11 Nov 2000 19:38:08 -0500
To: amsat-bb@amsat.org (Amsat Bulletin Board)
From: "Stacey E. Mills, M.D." [w4sm@cstone.net]
Subject: [amsat-bb:36517] Phase 3D Telemetry Program
A zip file (555K) containing my P3D telemetry decoding program (P3T.exe),
as well as some additional supporting files is now available at:
http://www.cstone.net/~w4sm2/software2/P3t_AP.zip
The program will run on Win95/98/NT/2000 platforms. Additional programs
are under development for MacIntosh and Linux platforms. A 400 bps PSK
demodulator, as used with AO-13, is required. Hardware and DSP
demodulators are available. Additional information regarding demodulators,
and the telemetry format can be found at:
http://www.amsat-dl.org/p3d/
Please read the "readme.txt" file before attempting to install this
software. A help file is also provided.
My ability to answer specific questions regarding this software is
virtually zero for the foreseeable future, given the extreme efforts
required for P3D. However, if you post questions to the Amsat-BB, other
users may be able to help and if (when) true bugs are found and brought to
my attention, I will make every effort to correct them ASAP. "It would be
nice ifs....." will be addressed as time allows, but probably not for a while.
NOTE that I am releasing this software as freeware, but if you like it, in
the spirit of support for amateur satellite efforts, I ask that you make a
minimum $20.00 contribution to AMSAT in the name of P3T. Additional
information regarding a support donation is present in the "readme.txt" file.
These promise to be exciting times!!
Enjoy!!
......................................................................
Stacey E. Mills, W4SM WWW: http://www.cstone.net/~w4sm/ham1.html
Charlottesville, VA PGP key: http://www.cstone.net/~w4sm/key
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☆ P3D テレメトリフォーマット
http://www.amsat-dl.org/p3d/tlmspec.txt
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AMSAT PHASE 3D TELEMETRY
Compiled by:
Peter Guelzow DB2OS
Karl Meinzer DJ4ZC
James Miller G3RUH
Stacey Mills W4SM
Release 1.4 2000 Nov 01
Contents
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1. DOCUMENT SOURCE
2. INTRODUCTION
3. FREQUENCIES
4. MODULATION FORMAT
5. AMSAT P3 BLOCK STRUCTURE
6. P3D BLOCK CONTENTS
7. AMSAT P3 CRCC DEFINITION
8. P3D BLOCK FORMATS
9. P3D Telemetry List Analogue #100 - #17F
10. P3D Digital Telemetry List #180 - #1FF
11. USER HARDWARE/SOFTWARE
12. GLOSSARY
(各項目の内容については、上記URLを参照)
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