No records in SDSS for DESI spectra

Question

• I am unable to retrieve SDSS using the SparclClient() module, more specifically I am using client.retrieve_by_specid(). Here are the steps I have done:
• Download the zall-pix-iron.fits and cross-matched with my target sample using rac and dec.
• I used the SparclClient() module with 'TARGETID' to retrieve spectra from DESI-DR1.
• I tried to do the same using dataset_list=['SDSS-DR16', 'BOSS-DR16'], but I always get 0 records. Which is strange since those are SDSS targets.

I would appreciate any help.
Thanks in advance

Answer 1

Briefly, TARGETID is only valid for DESI spectra. Other surveys use other forms of ID. We are preparing a longer example to help find DESI spectra that match to SDSS & BOSS.