>>> import gridstatus
>>> iso = gridstatus.ISONE()
>>> iso.get_pnode_table("latest")
     Publish Date Substation Long Name Substation Name Unit Name Unit Short Name             Node Name  Node/Unit ID  Zone ID  Reserve ID  RSP Area       Dispatch Zone  DRRAZ ID   Latitude  Longitude
0      2023-05-16            2121A TAP         2121A_T       NaN             NaN       LD.2121A_T 34.5         46728     4001        7000        ME               Maine      7606  44.139200 -69.096700
1      2023-05-16         FIVE CORNERS         5CORNRS       NaN             NaN  LD.5CORNRS 13.2T1 LD          4801     4007        7000       WMA          Western MA      7618  42.249705 -72.535697
2      2023-05-16         FIVE CORNERS         5CORNRS       NaN             NaN  LD.5CORNRS 13.2T2 LD          4802     4007        7000       WMA          Western MA      7618  42.249705 -72.535697
3      2023-05-16             ACUSHNET        ACUSHNET       NaN             NaN       LD.ACUSHNET13.2          4240     4006        7000      SEMA          Lower SEMA      7612  41.670892 -70.913653
4      2023-05-16                ADAMS           ADAMS       NaN             NaN         LD.ADAMS   23          4310     4007        7000       WMA          Western MA      7618  42.654671 -73.105972
...           ...                  ...             ...       ...             ...                   ...           ...      ...         ...       ...                 ...       ...        ...        ...
1146   2023-05-16         NINE DRAGONS        9DRAGONS  ND PAPER            BOIS   UN.9DRAGONS115 BOIS           345     4001        7000        ME               Maine      7606  44.549500 -70.541000
1147   2023-05-16     POWER COMPANY RD        PWRCO_RD       NaN             NaN  LD.PWRCO_RD13.21T_LD         67524     4007        7000  CMA/NEMA          Central MA      7616  42.623919 -71.246490
1148   2023-05-16     POWER COMPANY RD        PWRCO_RD       NaN             NaN  LD.PWRCO_RD13.22T_LD         68274     4007        7000  CMA/NEMA          Central MA      7616  42.623919 -71.246490
1149   2023-05-16            GREENWICH        GREENWCH       NaN             NaN       LD.GREENWCH13.2         68504     4004        7001       NOR  Norwalk - Stamford      7602  41.020964 -73.632979
1150   2023-05-16        ISO-NE PUBLIC             NaN       NaN             NaN                   NaN          <NA>     <NA>        <NA>       NaN                 NaN      <NA>        NaN        NaN

[1151 rows x 14 columns]