Search results

No doubt. :)

In my propagator, I’m currently using a SPICE library function to rotate the SRP Sun-satellite acceleration vector to the ECI frame, but I’m not totally sure that the result is correct. Since my skill in building rotation matrices is poor, I'd like to ask if someone can help me.

I overwritten the old installation with "D3D9ClientR3.10-forOrbiter2016(r1162).zip", then I overwritten the DLL with your new zip; worked for me. :thumbup: EDIT: do you plan to upload a release version of that DLL? ---------- Post added at 11:12 ---------- Previous post was at 11:08...

I see "R1 [Aug 30 2016]".

I downloaded the 6-Sep-2019 version; same problem. I downloaded a very old version (2016) as suggested by Kuddel; problem solved, for me.

I see the opposite with my hardware, but I have an old GTX 660 Ti. I also use a fps limiter (200 fps).

Good! I'll do it. Windows 7 64 bit. No significant changes since 2016. The problem is that with the new D3D9 version I see the FPS display (RivaTunerStatisticsServer) flashing near the center of the window, like D3D9 is repeatedly opening and closing a new window. Anyway, is not a problem, an...

Older version I installed the version 25-Feb-2019, but it's not good for my hardware. Same problem with D3D9ClientR3.5-forOrbiter2016(r1061).zip. Is there an even older version? Probably I need a very old version, but I forgot the working version. I don't need the most up to date version, I...

If I correctly understand the doc "PlanetTextures.pdf" page 9, the elevation resolution is 1 m. Very good! :-) The most updated values used by NAIF are: RA= 85.4567, DE= -60.3574: https://naif.jpl.nasa.gov/pub/naif/ORX/kernels/pck/bennu_v14.tpc which is 173.477 deg over the ecliptic, but...

You're right! With the default graphics it looks good. With SPICE I obtain the "exact" location of the bodies, but if I also want a correct Bennu prime meridian location, I also need to bother with those parameters (I remember the same for Pluto/Charon synchronism). The values are 214.55 m...

The first strange thing is that that line is purple in my installation (Orbiter 2016). Beside that, I attached one image of Bennu and one of the Earth (for comparison). I used the global frame (F2) and I oriented the camera to see the retrograde Bennu rotation. To see the line passing over the...

I'm probably misinterpreting the meaning of the lines, but I think there's something strange. I'll do some testing... Ooops! You're right. Thank you. I already read PlanetTextures.pdf, it's the reason I asked here. :-) I'll try the procedure for the triaxial model. Don't waste your time. :-)...

Visually stunning! But if you enable the "Visual helpers", the Planetarium mode -> Target Equator line doesn't pass over the equator. Also, if you use Obliquity = 177.6 (a reasonably accurate value), the spin axis seems to be about 100 deg (the ecliptic blue line is almost vertical instead of...

No idea on how much work is needed, so I can only ask. It would be useful to also have the best fit ellipsoid for the Bennu model; no texture, only a triaxial ellipsoid (I attached the .bmp). I'd be very grateful if you'd also create this model, but if you don't have time, just ignore this post.

Wonderful! :thumbup:

I attached a 360 x 180 and a zipped 1440 x 720 .bmp's.

1:2 greyscale heatmap: http://cristianopi.altervista.org/Bennu-hm.html (I posted the html so you can see the numbers). 1 pixel is 1 degree in both directions (the projection is surely equirectangular; if you really need cylindrical, I can try something else). Left edge: longitude = -180, bottom...

I tried to insert an image in my post but it didn't work; please, could you take a look here: http://cristianopi.altervista.org/as/sonde_orx/bennu-srf.html ? After changing from rectangular to cylindrical projection and from color to greyscale, could those heatmaps be good? Altitude with...

No problem at all. Thank you ---------- Post added at 18:36 ---------- Previous post was at 18:30 ---------- I use the SPICE library to read the file "bennu_g_03170mm_spc_obj_0000n00000_v020.bds" (with global coverage at 31.7 meter resolution). I can create any file (in theory), but...

Hi BrianJ, Some questions: 1) I read in your docs: "Bennu elevation model by guess and luck."; if I post the elevation data created by the OSIRIS-REx Altimetry Working Group, will you be so kind to update the elevation model? 2) Is your ORX model accurate? 3) Does the ORX axes orientation...