• THE ASTRONOMER Electronic Circular No 1155 1997 Jan 01 12.50UT
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  • THE ASTRONOMER Electronic Circular No 1170 1997 Feb 14 18.06UT
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  • THE ASTRONOMER Electronic Circular No 1189 1997 May 04 10.40UT
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  • THE ASTRONOMER Electronic Circular No 1199 1997 May 29 18.02UT - Decode e-chart
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  • THE ASTRONOMER Electronic Circular No 1206 1997 Jun 22 12.03UT
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  • THE ASTRONOMER Electronic Circular No 1250 1997 Nov 06 20.20UT
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