# refseq	assembly	ucsc
NC_021541.1	1	NC_021541v1
NC_021542.1	9	NC_021542v1
NC_021543.1	4	NC_021543v1
NC_021544.1	6	NC_021544v1
NC_021545.1	2	NC_021545v1
NC_021546.1	5	NC_021546v1
NC_021547.1	7	NC_021547v1
NC_021548.1	8	NC_021548v1
NC_021549.1	11	NC_021549v1
NC_021550.1	10	NC_021550v1
NC_021551.1	3	NC_021551v1