2018-08-13: The Ozone Probe

The probe was predicted to land near Pullach  — one prediction run put the probe at the backyard of the BND, the German intelligence service . Even though it was far, I decided to go for it.

www.wetterson.de tracked the probe to an altitude of 750 meters. The probe would eventually drop a little bit short of Pullach into the Forstenrieder Park at 9:40 AM. At this point in time I was about 120 km away and could not receive the probe.

First I went to Schorn that is south of Forstenrieder Park. Passing by the park on the high way, I could shortly hear the probe with the radio. Good.

In Schorn, I found a spot where I got a reasonably good signal from the probe. Decoding it, I had my GPS fix — good:

 [17032] (L4743676) (2018-08-13) Mo 09:15:42.720 lat: 48.03539 lon: 11.45236 alt: 705.7 (d:72.1) vH: 2.1 D: 18.8° vV: 3.1 DOP[16,21,29,26,4] 29.4

Reaching the park was not really easy as it is rather large and not really accessible by car. I drove as close to the probe as I could — and I still had to hike for about 40 minutes and 4 km. Looking at the fir trees that were about 25 m and more high I became somewhat pessimistic about the possibility to recover it. The forest  resembled those I had visited with my grandparents as a child. Same look and same smell. Maybe we had even been in that very park together — loooong ago. I liked it.

I finally arrive around 12:40 in the landing zone and I quickly located the probe hanging in a tree near the decoded GPS position — unfortunately in around  20 m height. I had brought a telescope rod with around 8m — no way to recover the probe. I returned to Stuttgart with nothing but a couple of pictures.

 

Trajectory of Ozone Probe

Bearings (red) and my hike to the probe (blue)

Landing Zone

Landing Zone with Puddle

 

Probe hanging in fir tree

Probe dangling in tree — so far away from me, so far I just can’t see

Shadow of me thinking: How on earth will I be able to retrieve it

 

Interesting looking tree with parasites, I assume

Update on 2018-09-03

As I learned from Rolf, he was there around 10:00 h. He also could not retrieve the probe.

Update on 2020-01-03

I visited Arndt, a friend of mine living in Munich. We went on a bike ride  and checked for the probe. The weather was great. Arriving there, we realized that the probe was  gone.  It still was a nice ride.

Arndt and myself on a bike ride with purpose
Arndt and myself on a bike trip with purpose…

Here I had left the ozone probe in August of 2018 (in inner red circle)Here, I had left the probe in August 2018 (inner red circle)

The probe was nowhere aroundThe probe is nowhere to be seen in 2020 — I think that is the very spot where it had landed

Arndt still thrilled by the chase ...Arndt still thrilled by chasing the probe