diff --git a/data/sites.txt b/data/sites.txt
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--- /dev/null
+++ b/data/sites.txt
@@ -0,0 +1,66 @@
+# No ID   Latitude Longitude   Elev   Observer
+1111 RL   38.9478 -104.5614   2073    Ron Lee
+4171 CB   52.8344    6.3785     10    Cees Bassa
+4172 LB   52.3713    5.2580     -3    Leo Barhorst
+4553 CB   53.3210   -2.2330     86    Cees Bassa
+0001 MM   30.3340  -97.7610    160    Mike McCants
+0002 MM   30.3138  -97.8661    280    Mike McCants
+0011 VA   44.7269   34.0167    580    Crimea Astrophysical Observatory
+0030 IA   47.4857   18.9727    400    Ivan Artner
+0031 IA   47.5612   18.7366    149    Ivan Artner
+0070 BC   53.2233   -0.6003     30    Bob Christy
+0100 SG   59.4627   17.9138      0    Sven Grahn
+0110 LK   32.5408  -96.8906    200    Lyn Kennedy
+0433 GR  -33.9406   18.5129     10    Greg Roberts
+0434 IR  -26.1030   27.9288   1646    Ian Roberts
+0710 LS   52.3261   10.6756     85    Lutz Schindler
+1056 MK   57.0122   23.9833      4    Martins Keruss
+1086 NK   46.4778   30.7556     56    Nikolay Koshkin
+1244 AM   44.3932   33.9701     69    Andriy Makeyev
+1747 DD   45.7275  -72.3526    191    Daniel Deak
+1775 KF   44.6062  -75.6910    200    Kevin Fetter
+2018 PW   51.0945   -1.1188    124    Peter Wakelin
+2115 MW   51.3286   -0.7950     75    Mike Waterman
+2414 DH   50.7468   -1.8800     34    David Hopkins
+2420 RE   55.9486   -3.1386     40    Russell Eberst
+2563 PN   51.0524    2.4043     10    Pierre Nierinck
+2675 DB   52.1358   -2.3264     70    David Brierley
+2701 TM   43.6876  -79.3924    230    Ted Molczan
+2751 BM   51.3440   -1.9849    125    Bruce MacDonald
+2756 AK   56.0907   -3.1623     25    Andy Kirkham
+4353 ML   52.1541    4.4908      0    Marco Langbroek
+4354 ML   52.1168    4.5602     -2    Marco Langbroek
+4355 ML   52.1388    4.4994     -2    Marco Langbroek   
+4541 AR   41.9639   12.4531     80    Alberto Rango
+4542 AR   41.9683   12.4545     80    Alberto Rango 
+4641 AR   41.1060   16.9010     70    Alberto Rango
+5555 SG   56.1019   94.5533    154    Sergey Guryanov
+5918 BG   59.2985   18.1045     40    Bjorn Gimle
+5919 BG   59.2615   18.6206     30    Bjorn Gimle
+6226 SC   28.4861  -97.8194    110    Scott Campbell
+7777 BY   38.1656   -2.3267   1608    Brad Young remote
+7778 BY  -31.2733  149.0644   1122    Brad Young SSO 
+8048 ST   49.4175 -123.6420      1.   Scott Tilley
+8049 ST   49.4348 -123.6685     40.   Scott Tilley
+8305 PG   26.2431  -98.2163     30    Paul Gabriel
+8335 BY   36.1397  -95.9838    205    Brad Young
+8336 BY   36.1397  -95.9838    205    Brad Young
+8438 SS   38.8108 -119.7750   1545    Sierra Stars 
+8536 TL   36.8479  -76.5010      4    Tim Luton
+8539 SN   39.4707  -79.3388    839    Steve Newcomb
+8597 TB  -34.9638  138.6333    100    Tony Beresford 
+8600 PC  -32.9770  151.6477     18    Paul Camilleri
+8730 EC   30.3086  -97.7279    150    Ed Cannon
+8739 DB   37.1133 -121.7028    282    Derek Breit
+9461 KO   47.9175   19.89365   938    Konkoly Obs
+9633 JN   33.0206  -96.9982    153    Jim Nix
+9730 MM   30.3150  -97.8660    280    Mike McCants
+6242 JM   42.9453   -2.8284    623    Jon Mikel
+6241 JM   42.9565   -2.8203    619    Jon Mikel
+4160 BD   51.2793    5.4768     35    Bram Dorreman
+9000 PP   40.0848   21.1581   1433    Pierros Papadeas
+9001 AF   44.5700    6.68     1850    Alain Figer
+9002 AO   62.2544   26.5962    150    Arto Oksanen
+9003 CP  -24.6272  -70.4047   2638    Cerro Paranal
+9999 GR   47.348     5.5151    100    Graves
+0531 FM  -34.8961  -56.1227     30    Fernando Mederos
diff --git a/data/tycho2.dat b/data/tycho2.dat
new file mode 100644
index 0000000..6dbbfbc
Binary files /dev/null and b/data/tycho2.dat differ