Meaning of the output of `showq -r -u `

On a cluster, I did

showq -r -u matthey

where matthey is my useame. Here is the output

active jobs------------------------
JOBID               S  PAR  EFFIC  XFACTOR  Q  USERNAME    ACCNT            MHOST PROCS   REMAINING            STARTTIME

7056827[219]        R  DDR  99.01      1.5 no   matthey hkw-282-           pod1b2     1    14:00:25  Thu Aug  4 23:22:45
7056827[226]        R  DDR 100.00      1.9 no   matthey hkw-282-          pod1b16     1  1:00:47:27  Fri Aug  5 10:09:47
7056827[225]        R  DDR 100.00      1.9 no   matthey hkw-282-           pod3b2     1  1:00:47:27  Fri Aug  5 10:09:47

3 active jobs            3 of 9048 processors in use by local jobs (0.03%)
                        866 of 869 nodes active      (99.65%)

Can you please explain to me the meaning of each of these columns?

I understand the meaning of JOBID, USERNAME, PROCS, REMAINING and STARTTIME but the other columns are very much unclear to me.