4 ms·

Interesting. There is one over northwest LA as well.

jjwiseman 11y ago
That's N404KR, which over the past year has flown over Los Angeles on average one day in five. It's one of the top 10 planes I receive transponder pings from, in frequency.
- snowpanda 11y ago
  What do transponder pings indicate? Are those Stingrays? Thanks for all the information by the way, very informative.
  - jjwiseman 11y ago
    Those are just the pings from the transponder that almost every aircraft carries to help air traffic controllers keep track of it. You can receive and decode them with a $20 RTL-SDR dongle and free software. There's more info on how I track aircraft and how I figured out that the FBI was flying over 100 aircraft registered to front companies, some of them doing aerial surveillance, here: https://docs.google.com/presentation/d/1zwRyuVJGaQwG6mYMSYWo8UouLCJVe2NuDHo0sEn2QN8/edit?usp=sharing https://docs.google.com/presentation/d/1zwRyuVJGaQwG6mYMSYWo...
    - anonbanker 11y ago
      Thank you for this work.
- jjwiseman 11y ago
  This is one of my slides on N404KR: https://docs.google.com/presentation/d/1zwRyuVJGaQwG6mYMSYWo8UouLCJVe2NuDHo0sEn2QN8/edit#slide=id.ga3a076b34_0_117 https://docs.google.com/presentation/d/1zwRyuVJGaQwG6mYMSYWo...
  - spdustin 11y ago
    I found that the adsbexchange site had a JSON feed (that adheres to the virtual radar standard, even) but couldn't find any direct guidance about permissible usage. Do you know of any aggregators of ADSB data (without filters) that one could use to set up a site for constant logging/tracking/visualization of this stuff? I'm thinking of mashing this up with geolocated tweets/pics/videos to try and figure out if the public can identify what the hell these planes are doing. Maybe also a way to get alerts when you're in an area that is being surveilled. I have a toy Python script doing some of that now with the adsbexchange feed, but I don't want to let something into the wild that uses someone else's feed without permission.
    - dstreufe 11y ago
      Hey there - I am the operator of adsbexchange.com. We can talk offline - send me a message with your contact info through the contact form on the site. --Dan

That's N404KR, which over the past year has flown over Los Angeles on average one day in five. It's one of the top 10 planes I receive transponder pings from, in frequency.

snowpanda 11y ago
What do transponder pings indicate? Are those Stingrays? Thanks for all the information by the way, very informative.
- jjwiseman 11y ago
  Those are just the pings from the transponder that almost every aircraft carries to help air traffic controllers keep track of it. You can receive and decode them with a $20 RTL-SDR dongle and free software. There's more info on how I track aircraft and how I figured out that the FBI was flying over 100 aircraft registered to front companies, some of them doing aerial surveillance, here: https://docs.google.com/presentation/d/1zwRyuVJGaQwG6mYMSYWo8UouLCJVe2NuDHo0sEn2QN8/edit?usp=sharing https://docs.google.com/presentation/d/1zwRyuVJGaQwG6mYMSYWo...
  - anonbanker 11y ago
    Thank you for this work.
jjwiseman 11y ago
This is one of my slides on N404KR: https://docs.google.com/presentation/d/1zwRyuVJGaQwG6mYMSYWo8UouLCJVe2NuDHo0sEn2QN8/edit#slide=id.ga3a076b34_0_117 https://docs.google.com/presentation/d/1zwRyuVJGaQwG6mYMSYWo...
- spdustin 11y ago
  I found that the adsbexchange site had a JSON feed (that adheres to the virtual radar standard, even) but couldn't find any direct guidance about permissible usage. Do you know of any aggregators of ADSB data (without filters) that one could use to set up a site for constant logging/tracking/visualization of this stuff? I'm thinking of mashing this up with geolocated tweets/pics/videos to try and figure out if the public can identify what the hell these planes are doing. Maybe also a way to get alerts when you're in an area that is being surveilled. I have a toy Python script doing some of that now with the adsbexchange feed, but I don't want to let something into the wild that uses someone else's feed without permission.
  - dstreufe 11y ago
    Hey there - I am the operator of adsbexchange.com. We can talk offline - send me a message with your contact info through the contact form on the site. --Dan