Elset typing errors

Bjorn Gimle (bjorn.gimle@online.dextel.se)
13 Dec 1995 21:35:04 GMT

adam@oig1.gsfc.nasa.gov		oig E mail address for BBS Manager:
rans7500@spacelink.msfc.nasa.gov,Internet	Dave Ransom, RPV

I think the problem with the extra decimal point in elsets
recently, and the reply given, illustrates a fundamental
weakness in OIG elset handling :

Elsets are treated as two lines of text, instead of as a collection of
numeric fields in a database. If they were numerics, they could be
exported to the .dat and .tle files with standard formatting.
(They might also be tested for at least some additional weaknesses)

This is from thirty.tle (and the tle d(A)ta base) 951213:
23732
1 23732U@95067C   95345.28709180 -.00000113  00000-0  00000+0 0    25
2 23732   6.8016 240.2951 7350648 180.8584 142.4403  2.18269142    92
	!
This is from Allen Thomson's el951210, but possibly in the tle
data base also (I'm sure Allen doesn't type his files by hand) :
88069  A
1 19377U 88069  A 95339.41344616  .00000006  00000-0  10000-3 0  2674
2 19377  64.7613 111.6299 7170339 254.04"5  22.3420  2.00655969 53592
					!
This elset is already superceded by five newer elsets, which show
a milder form of arbitrary formatting, which is very common :
Element set number = 3
1 19377U 88069A   95345.39382861 +.00000011 +00000-0 +10000-3 0 02757
2 19377 064.7577 110.8786 7174195 253.9540 022.3480 02.00654651053712
Element set number = 5
1 19377U 88069A   95346.39056551  .00000025  00000-0  10000-3 0  2690
2 19377  64.7573 110.7532 7174806 253.9391  22.3504  2.00654389 53736
	!  Leading 0 and +       !         !!       !!         !!

And an elset trio with identical epochs, but very different M.A.,
and lots of blank fields :
Element set number = 1
1 23632U 95039A   95340.15089960 -.00001339 +00000-0 +00000-0 0 00203
2 23632 068.8180 252.7700 8988376 318.3140 342.9970 00.26402700000332
Element set number = 2
1 23632U 95039A   95344.15089960 -.00001137  00000-0  00000+0 0   213
2 23632  68.3200 253.1460 8957180 318.2860   2.0640  0.26327600   349
Element set number = 3
1 23632U          95340.15089960  .00000000                   0     6
2 23632  68.8180 252.7700 8988376 318.3140 342.9970  0.26402700    06
	 !!!!!!                            !!!!!!!!            !!!!!

(David Cottle and Ted Molczan should have been copied, but I
believe they are members of seesat-l)

------------------------------------------------------------
-- bjorn.gimle@online.dextel.se    +46-8-7428086          --
-- bjorn@tt-tech.se                +46-8-59095739         --
--(bjorn.gimle@duesenberg.se)      59.22371 N, 18.22857 E --
------------------------------------------------------------




************ Sent via DN Online (Sweden) UUCP Gateway **************