How to check temp tablespace utilization

Below query check temp tablespace utilization in SQL

sql">set lines 200
select TABLESPACE_NAME, sum(BYTES_USED/1024/1024),sum(BYTES_FREE/1024/1024)
from V$TEMP_SPACE_HEADER group by TABLESPACE_NAME;

SELECT A.tablespace_name tablespace, D.GB_total,
SUM (A.used_blocks * D.block_size) / 1024 / 1024 /1024 GB_used,
D.mb_total - SUM (A.used_blocks * D.block_size) / 1024 / 1024 / 1024 GB_free
FROM v$sort_segment A,
(
SELECT B.name, C.block_size, SUM (C.bytes) / 1024 / 1024 /1024 GB_total
FROM v$tablespace B, v$tempfile C
WHERE B.ts#= C.ts#
GROUP BY B.name, C.block_size
) D
WHERE A.tablespace_name = D.name
GROUP by A.tablespace_name, D.GB_total;