Interesting question Rolf
First of all I have as usual no first hand details, but checking Balss two books the result is
nothing. No NJG 200 loss listed on the date you state...
Now NJG 200 is one of those rather obscure units and also rather incoherent. If you check out Holms pages you will find it consisted of various staffeln created on the eastern front, and those in itself
also created from other rather obscure units named Nacht Jagd Schwärme Luftflotte 1, 4 and 6 plus 10./ZG 1. (If 8./NJG 200 was formed from scratch or from some previous unit is not stated...)
If anyone by the way can 100% confirm if
1) 4./NJG 200 was formed from NJ Schwarm Lf 4 or 10./ZG 1
or if
2) 5./NJG 200 was formed from 10./ZG 1 of NJ Schwarm Lf 4
I would be very pleased indeed...
Cheers
Stig