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- Date: Fri, 31 Dec 93 04:30:35 PST
- From: Ham-Space Mailing List and Newsgroup <ham-space@ucsd.edu>
- Errors-To: Ham-Space-Errors@UCSD.Edu
- Reply-To: Ham-Space@UCSD.Edu
- Precedence: Bulk
- Subject: Ham-Space Digest V93 #128
- To: Ham-Space
-
-
- Ham-Space Digest Fri, 31 Dec 93 Volume 93 : Issue 128
-
- Today's Topics:
- Help working R0MIR-1
- Post your Sat-Track software pick here
- Two-Line Orbital Element Set Format
-
- Send Replies or notes for publication to: <Ham-Space@UCSD.Edu>
- Send subscription requests to: <Ham-Space-REQUEST@UCSD.Edu>
- Problems you can't solve otherwise to brian@ucsd.edu.
-
- Archives of past issues of the Ham-Space Digest are available
- (by FTP only) from UCSD.Edu in directory "mailarchives/ham-space".
-
- We trust that readers are intelligent enough to realize that all text
- herein consists of personal comments and does not represent the official
- policies or positions of any party. Your mileage may vary. So there.
- ----------------------------------------------------------------------
-
- Date: 31 Dec 1993 01:22:57 GMT
- From: swrinde!cs.utexas.edu!howland.reston.ans.net!vixen.cso.uiuc.edu!moe.ksu.ksu.edu!crcnis1.unl.edu!unlinfo.unl.edu!djw@network.ucsd.edu
- Subject: Help working R0MIR-1
- To: ham-space@ucsd.edu
-
- I need some help with the procedure for working R0MIR. I can hear the
- bird just fine,in fact, I sort of worked it by default when it sent me
- back a "busy" and disconnected my tnc.My questions are these.....
- 1.How do you connect to the R0MIR-1 machine? Luck? I don't
- want to tie up the frequency with a lot of useless tries and
- "busy's".
- 2.Once connected,what commands do you send for a quick and
- efficient QSO?
- If all this stuff is in a FAQ, please direct me there!!!
- Thank You,73- Dan
- djw@unlinfo.unl.edu
-
- ------------------------------
-
- Date: 30 Dec 93 13:07:44
- From: idacrd.ccr-p.ida.org!idacrd!n4hy@uunet.uu.net
- Subject: Post your Sat-Track software pick here
- To: ham-space@ucsd.edu
-
- Quiktrak and Instantrak are both still available from AMSAT. Quiktrak is
- a little old and Instantrak and it both use EGA. There is a need for a
- new one. I have one in the works that I will not say much about at
- present. It will support ONLY modern facilities. Sorry to those of you
- who have 80286's and before but the utilities needed to support the older
- stuff costs space, money, and time that is just not available if you also
- wish to `keep up.'
-
- I would say that Instantrak and Quiktrak are very complimentary set of
- tools but if I had to pick ONE, I would pick Instantrak. Quiktrak does
- things Instantrak does NOT do and vice versa. If you want contact
- Keith Pugh, W5IU and get an unbiased opinion, and a list of the capabilities
- which distinguishes them.
-
- Bob
- --
- Robert W. McGwier | n4hy@ccr-p.ida.org Interests: ham radio,
- Center for Communications Research | scouts, astronomy, golf (o yea, & math!)
- Princeton, N.J. 08520 | ASM Troop 5700, ACM Pack 53 Hightstown
- (609)-279-6240(v) (609)-924-3061(f)| I used to be a Buffalo . . . NE III-120
-
- ------------------------------
-
- Date: Thu, 30 Dec 1993 21:11:10 MST
- From: swrinde!gatech!destroyer!nntp.cs.ubc.ca!alberta!nebulus!ve6mgs!usenet@network.ucsd.edu
- Subject: Two-Line Orbital Element Set Format
- To: ham-space@ucsd.edu
-
- As a service to the satellite user community, the following description of the
- NORAD two-line orbital element set format is uploaded to sci.space.news and
- rec.radio.info on a monthly basis. The most current orbital elements
- from the NORAD two-line element sets are carried on the Celestial BBS, (513)
- 427-0674, and are updated daily (when possible). Documentation and tracking
- software are also available on this system. The Celestial BBS may be accessed
- 24 hours/day at 300, 1200, 2400, 4800, or 9600 bps using 8 data bits, 1 stop
- bit, no parity. In addition, element sets (also updated daily) and some
- documentation and software are also available via anonymous ftp from
- archive.afit.af.mil (129.92.1.66) in the directory pub/space.
-
- ==============================================================================
-
- Data for each satellite consists of three lines in the following format:
-
- AAAAAAAAAAA
- 1 NNNNNU NNNNNAAA NNNNN.NNNNNNNN +.NNNNNNNN +NNNNN-N +NNNNN-N N NNNNN
- 2 NNNNN NNN.NNNN NNN.NNNN NNNNNNN NNN.NNNN NNN.NNNN NN.NNNNNNNNNNNNNN
-
- Line 0 is a eleven-character name.
-
- Lines 1 and 2 are the standard Two-Line Orbital Element Set Format identical
- to that used by NORAD and NASA. The format description is:
-
- Line 1
- Column Description
- 01-01 Line Number of Element Data
- 03-07 Satellite Number
- 10-11 International Designator (Last two digits of launch year)
- 12-14 International Designator (Launch number of the year)
- 15-17 International Designator (Piece of launch)
- 19-20 Epoch Year (Last two digits of year)
- 21-32 Epoch (Julian Day and fractional portion of the day)
- 34-43 First Time Derivative of the Mean Motion
- or Ballistic Coefficient (Depending on ephemeris type)
- 45-52 Second Time Derivative of Mean Motion (decimal point assumed;
- blank if N/A)
- 54-61 BSTAR drag term if GP4 general perturbation theory was used.
- Otherwise, radiation pressure coefficient. (Decimal point assumed)
- 63-63 Ephemeris type
- 65-68 Element number
- 69-69 Check Sum (Modulo 10)
- (Letters, blanks, periods, plus signs = 0; minus signs = 1)
-
- Line 2
- Column Description
- 01-01 Line Number of Element Data
- 03-07 Satellite Number
- 09-16 Inclination [Degrees]
- 18-25 Right Ascension of the Ascending Node [Degrees]
- 27-33 Eccentricity (decimal point assumed)
- 35-42 Argument of Perigee [Degrees]
- 44-51 Mean Anomaly [Degrees]
- 53-63 Mean Motion [Revs per day]
- 64-68 Revolution number at epoch [Revs]
- 69-69 Check Sum (Modulo 10)
-
- All other columns are blank or fixed.
-
- Example:
-
- NOAA 6
- 1 11416U 86 50.28438588 0.00000140 67960-4 0 5293
- 2 11416 98.5105 69.3305 0012788 63.2828 296.9658 14.24899292346978
- --
- Dr TS Kelso Assistant Professor of Space Operations
- tkelso@afit.af.mil Air Force Institute of Technology
-
- ------------------------------
-
- Date: Wed, 29 DEC 93 12:56:13 EST
- From: sgiblab!spool.mu.edu!sol.ctr.columbia.edu!news.kei.com!bloom-beacon.mit.edu!noc.near.net!news.delphi.com!usenet@ames.arpa
- To: ham-space@ucsd.edu
-
- References <H.eg.MmJ9EeMZVZc@harvee.billerica.ma.us>, <kerskine.13.0@ftp.com>, <1993Dec28.151104.8572@mnemosyne.cs.du.edu>t
- Subject : Re: 10m rx (really 2m tx)
-
- How about building a transmit converter right out of the ARRL handbook, and
- converting an HF rig up (or build a 10 meter transmitter to drive it)?
-
- ------------------------------
-
- Date: Fri, 31 Dec 1993 01:33:26 GMT
- From: yuma!galen@purdue.edu
- To: ham-space@ucsd.edu
-
- References <kerskine.13.0@ftp.com>, <1993Dec28.151104.8572@mnemosyne.cs.du.edu>, <931229.46573.PEITZER@delphi.com>
- Subject : Re: 10m rx (really 2m tx)
-
- In article <931229.46573.PEITZER@delphi.com> PEITZER@delphi.com writes:
- >How about building a transmit converter right out of the ARRL handbook, and
- >converting an HF rig up (or build a 10 meter transmitter to drive it)?
- You could get a Uniden HR2600 and tap in before the finals.
- I'm doing it,
- Galen, KF0YJ, DN70
-
- ------------------------------
-
- End of Ham-Space Digest V93 #128
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