urn:nasa:pds:context:target:comet.103p_hartley_2 1.1 103P/Hartley 2 1.11.0.0 Product_Context NAIF ID 1000041 2018-11-18 1.1 From PDS Rings node. 2018-07-20 1.0 From EN based on PDS RINGS node 103P/Hartley 2 Comet none