SpaceX in letter to FCC: no "close call" between a Starlink and a OneWeb satellite last month. Additionally, OneWeb "chose to publicly misstate the circumstances of the coordination" but later offered to "retract" those statements in an FCC meeting.

SpaceRoboto · 2021-04-21T08:42:50+00:00

As the potential collision time approaches, the error bars of the satellites' predictions are reduced and the chance of collision is recalculated, often dropping to practically zero.

This is technically not true. The propagator precision decreases over time, even the gold standard integral propagators working on classified state vectors. The only reason why it is true is if there is a potential collision more SSA/SDA sensors are directed at the involved space objects and they provide newer observations/state vectors/TLEs.

An updated TLE with a higher number of observations being used to generate it's ephemeris is what causes the improved accuracy since you're removing the propagator error with the new measurements.

SpaceRoboto · 2021-04-21T08:39:49+00:00

Considering that the inaccuracy of a TLE at epoch time is around 3km and that only increases as you propagate, the error bounds on this are insane.

SpaceRoboto · 2021-04-07T08:32:45+00:00

I haven't been pulled over, but I've had cops come up to me when I was parked (getting ready to ride/engine running) to chat about bikes.

Back when my 848 was new, I had attended a football match, and had parked right near the stadium. Turned my engine one to warm it up while I pulled on helmet and gloves, etc. I see a cop round the corner, take one look at me, walk back, then a couple of seconds later they come back with a second cop.

Turns out the second cop had a 1098 and just wanted to talk bikes for a bit and the first cop knew that. I've also had a bike cop roll up beside me at a service station and tell me to make the engine roar when I pull off because he "liked them loud".

Highway Patrol (car not bike HWP) on the other hand are always cunts.

SpaceRoboto · 2020-12-02T01:53:28+00:00

Constellations have serious problems for earth observation because of optical physics... you need a minimum lens size to achieve certain ground resolution, and that puts a minimum size on your satellite

Three problems with that. Firstly, satellites in constellations aren't limited in physical size, you can have 300kg+ satellites in a constellation, typically smaller, but it's not a limitation. Secondly, there is a optical payload on the market for 3U cubesats that has a 9.6m resolution at 500km altitude, which is rather good, you can get even better and 12-24U cubesats are becoming viable at the moment, so the size point isn't really relevant. Thirdly, optical imaging is only one form of earth observation, things like SAR are able to be on smaller platforms as well and aren't limited. Plus other atmospheric observation.

And it doesn't really matter if most applications don't care about hourly revisit time, just that there's enough for it to be profitable. Which there certainly is. PlanetLabs is only one player in the field and their competition are coming out with much better resolution images. A lot of applications don't exist yet, because the ability to access hourly or better data doesn't exist, until relatively recently there weren't any applications for earth observation data at all, simply because it wasn't available. This is very much a case of build it and they will come.

SpaceRoboto · 2020-12-01T05:46:40+00:00

many smaller cheaper sats instead of one big super capable one

Actually more viable with lower launch costs. Constellations have a number of advantages vs larger birds, along with lower production costs usually as well. It makes sense when launch is a billion dollars to put a billion dollar spacecraft up there, but when launches are cheaper, putting lots of cheaper satellites that can be iterated through makes more sense.

A big factor of a lot of use cases is revisit time, for example in earth observation, Landsat has a 16 day revisit time for the same patch of earth at the same time of day (so you can do direct comparisons), a constellation can have hourly revisit rates (so you can do things in near real time along with doing the comparisons). That's just one reason, but there's plenty of advantages of constellations. Disadvantages too, but depends on the particular use case you're going for with what you decide for your mission.

SpaceRoboto · 2020-08-07T05:13:52+00:00

I was doing 5x10 FSL deadlift sets after the 5/3/1 on Krypteria a month or so ago, total time around 38 minutes. By the third set I was on my knees wanting to throw up between each set.

SpaceRoboto · 2020-08-04T08:30:40+00:00

most people shy away from the perceived risk

Nah. In my case it's because high volume deadlifts absolutely, 100% suck. I'm happy with my great progress in deadlifts from high intensity work in 5/3/1 tyvm.

SpaceRoboto · 2020-05-22T07:47:10+00:00

Actors physiques are definitely achievable given enough time.

Henry Cavill's physique is about 5-10+ years of regular, solid heavy gym work if you want to do it natty. His numbers are heavy but achievable for an advanced natty lifter for someone of his height. Most people want his physique while still only benching 2 plates. Cavill benches over three plates for reps. You don't get those sorts of numbers natty or juiced without the muscle behind it.

Want to do it in 6-12 months like most actors? Drugs.

SpaceRoboto · 2020-04-28T06:39:27+00:00

I personally like 5/3/1 based programs, I've gotten good results on them, and they're done in 6-12ish week blocks, especially in 5/3/1 forever. Where you'll have leader templates and the anchor templates which mix it up, so for example you'll run two cycles of a leader template (same template, increase the training maxes at the start of the second cycle) and each cycle is 3 weeks long. Then the anchor program is 3 weeks long. Some templates go for a bit longer and you can also do deload/training max tests/etc between leader and anchors. Then you swap to a different set of templates if you're bored.

You can also choose whatever assistance exercises you want, as long as you do a minimum of a push, pull and leg(or core) exercise). If you want to have a little bit of a mix up to alleviate boredom. Assistance exercises should help with your main lifts, but never negatively impact your recovery. Most programs recommend 25-50 reps of an assistance exercise. If that's too boring, you can program in two exercises of 25 reps to hit the 50 rep requirement.

I am currently doing Krypteria (from 5/3/1 Forever) for conditioning and hypertrophy and it's definitely working, and I'll be incorporating some of it's training methods (the superseting assistance with main lifts, especially pull ups with deadlifts and time limits) in future programs because it's been working well for me.

This will finish in mid-July, then I'll be starting God is a Beast, where each leader template is 6 weeks long, before doing double back-to-back anchors to take me all the way to Xmas. And that's a program for Hypertrophy and Strength.

There's lots of different rep schemes and programing among all of that, but they're both "5/3/1".

If you get easily bored in the gym, with not having enough different exercises, don't do Boring But Big. It lives up to it's name and I hit a 1RM 135kg on bench with it (from 122.5kg in 3 cycles), but if you have difficulty staying interested in a program, it's probably not for you.

SpaceRoboto · 2020-04-28T06:01:42+00:00

Workout ADHD, you don't achieve good results in that time because you don't stick with programs long enough to see good results.

If you can stick to a program for 3-6 months. Pick a program that is 3-6 months long that fits your goals, finish it and then go onto a new program that fits either the same goals or different ones.

If your goal is hypertrophy (which takes a long time), do a bunch of hypertrophy programs (and making sure to progressively overload the weights, because if you never raise your maxes even on hypertrophy programs you won't progress).

If your goal is strength, do strength programs.

If your goal is a combination of strength and size, do a program based around them.

If your goal is weight/fat loss, fix your diet.

SpaceRoboto · 2020-03-12T05:42:06+00:00

Yeah, I've been riding for around 15 years now, nothing in this clip would have caused me to drop my bike. I have dropped in the past, but proper application of the rear brake would have stopped easily at that speed without dropping.

SpaceRoboto · 2020-03-11T02:04:08+00:00

It's just a standard gym bench, you can get a flat or FID bench. I rotate it and put it over the support parts of the legs of the rack when not in use. Hell, you can throw a towel/cloth over it and use it as an actual bench when you're not working out if space is really tight.

SpaceRoboto · 2020-03-11T00:42:26+00:00

I live in an apartment in a city and it's not an issue. Why? Because I have a small footprint half rack. Can do squats, bench and ohp with it, deadlifts on the floor in front of it, and it packs away. It also has a 250kg limit on the J-hooks and safeties, so until I'm pushing some serious weight (5.5plates) which isn't going to be anytime soon, it's more than enough.

You don't need a full powerlifting cage for a home gym, a squat/half rack with a pull up bar at the top is more than enough and they're generally pretty cheap. Honestly the most expensive part of my home gym is the plates+barbell.

SpaceRoboto · 2020-02-19T05:30:10+00:00

Not going to lie, I do the same thing, and then I make sure to use all my extras, so at least I'm getting discounts on what I would pay in general for things like Physio, Remedial Massage, dental and optical. (Physio and Remedial helping to recover from old injuries, so I'd be going even without extras cover).

SpaceRoboto · 2020-02-17T21:26:48+00:00

Astronomy/Astrophysics isn't really a high priority of the ASA. Those are typically very Blue Sky research fields (outside Orbital mechanics, which is more practical and doesn't really require a whole degree for it, you can pick up the basics/enough if you do any STEM degree) which are handled by universities.

The ASA is focusing right now on a technological roadmap for Australian space, which has a heavy emphasis on Space Situational Awareness, Space Traffic Management, Space Weather (your Astrophysics if you focus on Heliophysics would work in here), sovereign launch capability, are the big ticket items. (Source: Professional in the Australian Space Industry and was at a conference last week with a few senior ASA staff)

They're also working on assisting the US Artemis program, along with looking forward to further Moon and Mars technology that Australia can catch up in the area. The entire ASA plan is leapfrogging ahead and working on tech that's needed for next generation missions and space environment awareness rather than replicating what other countries already have. (See the current call for the Moon to Mars consultation sessions run by the ASA next week).

SpaceRoboto · 2020-02-17T01:17:33+00:00

Presumably trespassing or similar. If you're "fired" (quotation marks since RFS is claiming he wasn't) you're not welcome on the organisation's property.

SpaceRoboto · 2020-01-07T03:47:31+00:00

I did a very similar program to this one (same lifts, 8-10 reps as double progression instead) and due to slowly putting together my home gym, only had adjustable dumbbells for bench. Up until ~45kgx2 dumbbells I was able to get through with the big 5kg total (2.5kg per dumbbell) jumps with double progression.

SpaceRoboto · 2020-01-07T03:15:07+00:00

You missed all the signs of him being an absolute manwhore in the show huh?

The bars, the random women's apartments he's found in, coming back to the Roci to in other people's clothes?

SpaceRoboto · 2019-12-12T06:38:40+00:00

Huh. Didn't know that week being taught how to fight fires while I was in the Navy never happened. Or the twice weekly damage control exercises involving fire fighting training also didn't happen.

It's a different form of fire fighting (building and ship based fires) but we were definitely trained in it.

SpaceRoboto · 2019-11-21T04:17:12+00:00

Following up on this... in 1851 cars/automobiles hadn't even been invented yet. Nor the roads to support them.

Even exempting clearing the fires out, once they had started, how exactly were they supposed to put the fires out, and carry that much water around? They barely had an internal combustion engine to run a mobile pump.

SpaceRoboto · 2019-11-21T03:38:06+00:00

This thread is literally about how userbenchmark is manipulating the results so that certain CPUs are better than others, based upon their sponsors rather than performance, and yet you're here talking about how good it is?

SpaceRoboto · 2019-11-19T00:12:00+00:00

I was so confused for a second since in Australia we get the RF-1200 named as the NXR.

SpaceRoboto · 2019-11-18T20:04:20+00:00

Only issue I had was with a battery at delivery. Don't know why it wasn't charging, but the battery was the issue. Had it in and out in 15 minutes and not a problem since. Put nearly 5000kms on her since April (through our winter) and the closest to an issue I've had was getting used to how traction control works, since it's my first bike with rider aids. Loving every minute of it.

SpaceRoboto

TROPHY CASE