When the initial periodic comet list was compiled, a number of errors were made in assigning the order of the serial numbers in the PDS Names. In 2005, a search of the IAUCs, MPECs and CBETs was done to determine the true order in which the comets were designated as periodic. On January 13, 2006, the names in the list were corrected to reflect this order. This file gives a list of the changes that were made on that date. Any subsequent changes are also indicated at the end of the file, with a description of the change and why it was made. Changes Made January 13, 2006: Official Initial New PDS Name Designation PDS Name (Corrected on Jan 13 2006) P/1999 J5 LINEAR 5 LINEAR 4 P/1999 G1 LINEAR 4 LINEAR 5 P/1999 XS87 LINEAR 9 LINEAR 8 P/2000 B3 LINEAR 10 LINEAR 9 165P/2000 B4 LINEAR 11 LINEAR 10 P/1999 XB69 LINEAR 8 LINEAR 11 P/2000 G1 LINEAR 13 LINEAR 12 P/2000 G2 LINEAR 14 LINEAR 13 P/2000 D2 LINEAR 12 LINEAR 14 P/2002 A1 LINEAR 19 LINEAR 18 P/2002 A2 LINEAR 20 LINEAR 19 P/2002 B1 LINEAR 22 LINEAR 20 P/2001 YX127 LINEAR 18 LINEAR 21 P/2002 CW134 LINEAR 23 LINEAR 22 P/2002 AR2 LINEAR 21 LINEAR 23 P/2001 R1 LONEOS 5 LONEOS 4 P/2001 OG108 LONEOS 4 LONEOS 5 P/2001 K1 NEAT 4 NEAT 3 P/2001 J1 NEAT 3 NEAT 4 Additional changes: April 13, 2006: The comet originally named "P/2005 N2 Hergenrother 3" was actually a re-discovery of the comet "P/1998 W2 Hergenrother 1". The MPC subsequently assigned the official designation "168P/2005 N2" and the PDS kept the original name "Hergenrother 1". The name "Hergenrother 3" was withdrawn. Sept 11, 2009: The comet designated P/2003 A1 (IAUC 8044, 8053) remained unnamed for nearly 2 years. It was finally given the name LINEAR 44 in Nov 2004 (IAUC 8430). On Sept 11 2009, Kowalski independently discovered a comet that was subsequently linked to LINEAR 44 and then to Pigott 1. With these connections, the comet was renamed Pigott-LINEAR-Kowalski 1 (IAUC 9072), and the names Pigott 1 and LINEAR 44 were withdrawn.