Mir acceleration?

Can anyone explain to me what, if anything, is happening to Mir's orbit?
The most recent elements I have for it have (to me) strangely large
acceleration terms:

Two-Line Orbital Element Sets TLE615 gives:

Mir
1 16609U 86017A   95153.24327392  .00035736  00000-0  49208-3 0   798
2 16609  51.6440 232.4815 0004737  45.5834 314.5545 15.56883953530636

and cs950603 shows:

Mir Complex     32.7  4.2  0.0  3.4
1 16609U 86017  A 95151.51011887  .00010503  00000-0  14368-3 0   766
2 16609  51.6469 241.1572 0004597  24.8929 335.2286 15.56751338530366

Thanks for any information.

Ed
N40.067, W074.222