urn:nasa:pds:context:investigation:observing_campaign.lowell_uranus-neptune-photometry 1.0 1.12.0.0 Product_Context 2019-10-10 1.0 Initial set up of the investigation product. urn:nasa:pds:context:facility:observatory.lowell investigation_to_facility urn:nasa:pds:context:telescope:lowell.21in0 investigation_to_telescope urn:nasa:pds:context:target:planet.uranus investigation_to_target urn:nasa:pds:context:target:planet.neptune investigation_to_target lowell_uranus-neptune-photometry Observing Campaign 1972-01-17 2016-10-05 This observing campaign collates photometric observations of Uranus and Neptune (1972-2016) in the b (472 nm) and y (551 nm) filters of the Strömgren photometric system at Lowell Observatory. Observations recorded mainly seasonal variations of disk-integrated albedos of these objects. This bundle includes 360 observations of Uranus and 433 observations of Neptune from 1972-2016. The work was led by Wes Lockwood from Lowell Observatory.