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Hi,

What is "Glover" as shown on the attached Exposure Table Help Page?  My only guess is it refers to Dr Robin Glover, maybe?  How should we use that number?

Thanks.

Paul

Attached Files

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Hi

I only saw Chroma narrowband, so I have this data from Chroma that can be uploaded into Sky Tools

LRGB - Data comes direct from Chroma


Hope they help someone

Brian

Attached Files

  Red.txt (Size: 1.73 KB / Downloads: 11)
  Blue.txt (Size: 1.5 KB / Downloads: 9)
  Green.txt (Size: 1.46 KB / Downloads: 7)
  Lum.txt (Size: 1.62 KB / Downloads: 10)

Currently magnitude 38 due to extremely small phase angle, this little rock from space did a very close flyby on 17 Nov 03:40UT of just 24,296Km. I call these "whizzers". Unfortunately for us observers the initial reported observation by ATLAS Chile, Rio Hurtado on 2023-11-16 at mag 18, came too late.

It very quickly reach magnitude 11, very high in my sky the same day at 21:15 CST moving a degree and a half per minute!

Within the next hour, this small rock became totally unobservable as its phase angle dropped to single digits.

It takes a lot of work to get these recent discoveries into SkyTools and then get them plotted correctly. It's all about gravity.

So I have 15 minor planets identified on my Target Selection tab. Is there a way to have the system select them all and create Projects for them all?

I see I can expedite the process by using the Project Template function after creating a new Imaging Project (works well), just wondering if there is an even faster way to create projects for a large group of targets?

v/r

Paul

I imaged Jellyfish supernova remnant IC 443 for 11 hours last January from Casa Grande, AZ.  I got 114 5-min images, and it all went very well.  

I tried to go back and model that night in SkyTools so see what it would have recommended, and how its projected SNs would align with my actual collections (my ground truth). 

But for some reason the system cannot reach any SN at all:

• Filters can't reach a target SNR in a New Imaging Project / Exposure Goals tab
  
• As shown in attached, Exposure Calculator shows no detectable signal.
  

I'm working with the BAMBOS 600 list, with the intention of observing objects that I've never observed that are below DEC -50 as I have a rare opportunity in Chile the next two nights.  I'm encountering some odd behaviors.

When I set all objects with log entries to "Observed", and then uncheck "Show Observed", several objects with log entries appear, which weren't appearing when all "Show All" was current status.  It took some wrangling, but I was finally able to get all the logged objects to "Observed".  I'm not even sure what steps I took at this point.


Thanks,

Bram

Looks like in a few hours (00:28:06CDT) this very small rock will make a very close pass (24,261Km).
The only place I've been able to find elements was at:
https://minorplanetcenter.net/db_search/...id=2023+VA
Only 23 observation over less than 24 hours. Uncertainty = 8.
It appears that it might reach 12th magnitude and be moving 5724"/m (1.6°/m) low in the north from Houston.

Just thought I would throw this out there, but due to the high uncertainty, late notice, low altitude (~20°), and speed, it might be very difficult to locate.

This is truly one where you need very close osculating elements from Horizons.

Kenneth Drake

I used SkyTools Imaging 4 (ST4) to plan for and enjoy a very successful imaging session, recording the classical 4 Galilean satellites of Jupiter, the fainter inner body Amalthea and 8 of the fainter outer, irregular satellites.
 
Celestron C9.25 Edge HD F10 at prime focus (2350mm).
ASI2600MM Pro (Bin 2x2) for the outer, fainter moons. 60 sec exposures, Gain=0, Offset=15. (The Sky X Pro Camera Add On).
Player One Saturn SQR (Bin 1x1) for the 4 Galilean satellites and Amalthea. (SharpCap).
Bortle 7 skies.
 
I used SkyTools Imaging 4 (ST4) to locate and GoTo all the satellites, other than Leda, whose data I obtained from the JPL Horizons website. ST4 provided the following information for my location in Brisbane, set for the mid-time of my session.
 
Name                  Mag      PA°        Sep"
Io                         4.8         247.4    95.1
Europa                5.1         75.8       156.8
Ganymede         4.4         226.8    53.6
Callisto                5.4         281.0    72.3
Amalthea           13.9       230.8    9.5
Himalia               14.6       223.6    3538.0
Elara                    16.6       98.7       1682.8
Pasiphae            16.8       277.4    12164.8
Sinope                18.1       273.4    2576.9
Lysithea              18.2       168.9    1982.4
Carme                 17.8       236.3    8051.9
Ananke               18.7       76.2       7649.4
 
Sinope was the most affected by the spill over of unwanted glare from the Jovian disc, so I had to place it towards the edge to lessen the impact. The whole project was made so easy through being able to obtain all the bodies data (apart from Leda) in ST4 and use ST4 to slew to each body in turn. I grabbed between 10 and 15 frames of 60 secs each which easily recorded these brighter satellites.
 
The positional data for Leda was obtained from the JPL Horizons website and I slewed to the RA and DEC coordinates to locate it. I grabbed 56x60 sec frames for the much fainter Leda. The recorded position is a good candidate when compared to the JPL position but to be certain, I would probably have to image it again to see if it has moved.
 
2023-Oct-20 15:00UT.
RA=02 38 05.41 DEC=+13 51 51.0.
Magnitude 20.068.
01 27 25 AEST
 
******** ASTROMETRIC SOLUTION RESULTS ********
Scale: 0.6460 arcseconds/pixel
Size (pixels): 3124 x 2088
Angular Size: 0° 33' 38" x 0° 22' 29"
Position Angle: 0° 49' from north through east
Mirror Image: No
RMS: 0.68 (X: 0.56 Y: 0.38)
Number of Stars Used in Solution: 102 (100%)
FWHM: 3.29 pixels, 2.13 arcseconds
**********************************************
 
I used Player One Saturn SQR (Bin 1x1) for the Jovian disc and Amalthea, with the 4 Galilean satellites of Europa, Callisto, Io and Ganymede as it had a higher framerate of 42 fps.
 
The 4-panel frames are full res crops where I have overlaid the text from ST4 over the BYW image, as a colour Layer in PS CC, to identify the satellites.
 
Dennis

   

   

   

   

I have a list that I want to filter based on a range of DEC so that I can identify a subset for observing by changing the observed status to "not yet observed".  I can sort the list by DEC, but cannot find a way to click select the group I want either.

Thanks,

Bram