It seems you have found a bug. There are some "secrets" in Gps application developpment:
1) if latitude and longitude both have the value 0 and if this location is marked as valid then this is always a programming error, on your or on API side, or some other place. Although (0,0) is theoretically possible practically it is reachable only via simulation. No ship or airplane can exactly navigate to (0,0) with a precision of 10cm.
2) same applies to some other values, like hdop or in your case horAcc.
So ignore this location!