Tornado vs Jaguar; Which was more survivable/less detectable?

Afternoon Gents.

I have been reading up on the two jets quite alot recently, especially on their earlier incarnations, the GR.1/A and GR.1A during the 80’s. As most of you know both were in RAFG during the 80’s and were pretty much the forefront of RAF power. Their primary task for certain squadrons was interdiction or ground attack or recce missions.

Now both can fly very low, in all weathers with very accurate navigation/targeting systems, the Tornado having quite an advantge here though. The low level flight being to avoid detection. However how hard would/could it be to detect a jet flying ~500+kts?

Counter stores for the Jag included various ECM/chaff stores (e.g Vinten) that could be loaded to suit the mission. The Tornado carrying BOZ and skyshadow pods. Now these all have their effective limits in what they can do as they are add-ons to the basic airframe.

The most important point for me is how they navigate. The Jaguar used the
Marconi-GEC NAVWASS which is basically a passive system as it has no radar making it very hard to pic up any sort of emission.

The Tornado on the other hand had basially two radars in one (ground mapping and Terrain following) made by Texas instruments. Now this is not passive. Both radars do incorporate random frequency agility which will help to avoid detection, but it is still emitting to “feel” the contours of the land.

So my question is which jet was more “stealthy” as it ingressed toa particular area? I’m sure plenty of you guys know/understand more of this than me and I would be grateful of an explanation.