18.04 - fstab mounting: permission setting

I have an issue with mounting my NTFS data partition (separate drive). This is the drive (fdisk -l):

Disk /dev/sdb: 232,9 GiB, 250059350016 bytes, 488397168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00095dd3
Device     Boot Start       End   Sectors   Size Id Type
/dev/sdb1        2048 488396799 488394752 232,9G  7 HPFS/NTFS/exFAT

I mount it through a fstab entry with my user and my user group and full permissions:

/dev/sdb1    /home/asche/dtn     ntfs-3g  defaults,nls=utf8,umask=000,auto,uid=1000,gid=1000           0  0

It shows up normally in Nautilus and in terminal (ls -ll ~):

drwxrwxrwx  1 asche asche    4096 Okt 22 21:42  dtn

Also all the data is there under ~/dtn. I just don't have permission to delete, cut, rename etc (so, I guess read-only is granted).

Any ideas on how to change my fstab file? I have tried quite a bunch by now...

I am running Ubuntu 18.04 LTS and Win10 in dual boot.