The following information obtained from UNAVCO's online DOI system:
(https://www.unavco.org/data/doi/search/search.html)

Greenland GNSS Network - KAGA-Kangia North P.S.
Start: 23-May-2006
End: 14-Nov-2022
SDFE, The Danish Agency, UNAVCO Community, Fahnestock, Mark, Truffer, Martin, 2006, Greenland GNSS Network - KAGA-Kangia North P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/FQGY-4535

Greenland GNSS Network - KAGA-Kangia North P.S.
Start: 01-Jan-2012
End: 31-Dec-2018
UNAVCO Community, 2006, Greenland GNSS Network - KAGA-Kangia North P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/S2LZ-2678

Greenland GNSS Network - KAGA-Kangia North P.S.
Start: 01-Jan-2019
End: 14-Nov-2022
SDFE, The Danish Agency, 2006, Greenland GNSS Network - KAGA-Kangia North P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/SYQC-EN24

Greenland GNSS Network - KAGA-Kangia North P.S.
Start: 23-May-2006
End: 01-Jan-2012
Fahnestock, Mark, Truffer, Martin, 2006, Greenland GNSS Network - KAGA-Kangia North P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5WH2N88