GRACE-FO data not downloading: no suitable SP3 provider

[CharlesPlusC]

Hello!

I've been utilizing your code and recently attempted to retrieve SP3 data for GRACE-FO (A/B), but encountered an error.

My cddis credentials are set up as follows(I am able to login to the cddis portal with these):

sp3.cddis.username = configUsr
sp3.cddis.password = configPwd

I defined the satellite PRN as:

# Define the satellite ID
satellite_id = sp3.Sp3Id("L64") #GRACE-FO A

Subsequently, when trying to fetch positions, I get an error:

obstime = astropy.time.Time(
    np.arange(
        astropy.time.Time("2023-04-16T00:00:00Z").jd,
        astropy.time.Time("2023-04-18T08:00:00Z").jd,
        3 / 1440
    ),
    format="jd"
)

positions = sp3.itrs(
    id=satellite_id,
    obstime=obstime,
    download_directory="DataFetch/sp3_cache"
)

I sourced the PRN number from the cddis webste. Interestingly, it works for nearly every other satellite I've tried except this particular one.

Below is the error message I'm encountering:

Traceback (most recent call last):
  File "/Users/Documents/GitHub/DataFetch/FetchSp3.py", line 34, in <module>
    positions = sp3.itrs(
                ^^^^^^^^^
  File "/Users/anaconda3/envs/env/lib/python3.11/site-packages/sp3/__init__.py", line 356, in itrs
    records=load(
            ^^^^^
  File "/Users/anaconda3/envs/env/lib/python3.11/site-packages/sp3/__init__.py", line 334, in load
    raise Exception(f'no suitable SP3 provider for "{sp3_id.decode()}"')
Exception: no suitable SP3 provider for "L64"

Am I missing something? Are they just not available for GRACE somehow?
Thanks in advance for any assistance!

Best regards,
Charles