A user is requesting  XMM-Newton MOCs, as the ones provided for Chandra (http://cxc.harvard.edu/cda/cda_moc.html) it would be good to have them updated and easily accesible.

We could provide the fits files also from the XSA web page

I cannot find source 3XMM J215022.4–055108, which is the topic of a recent nature paper about a black hole hosting stellar cluster: https://www.nature.com/articles/s41550-018-0493-1

Being this an XMM-Newton source probably from the 3XMM catalogue, shouldn't it be possible to find it directly by name in ESASky? I cannot find in SIMBAD nor in the XMM archive..

Hi ESASky team,

I think it would be extremely useful to give the user the possibility to hide the central crosshair from the FOV. That would simplify a lot using RGB images from ESAsky.

Thank you very much,

Alejandro Borlaff

The interface only supports string equality. Please add numerical comparison operators.

I am playing around a little bit with Jupyter notebooks, and I was wondering whether would it be a good idea to implement something in python or any other  programming languaje, that allows to send a request to ESASky in order to perform a crossmatch between a determined resultset, provided by the user, and the observations made by a specific science mission for that same area. 

For example, imagine that I am a user that wants to perform a study about x-ray objects. I have a resulset produced by the data retrieved from XSA TAP service and reduced following a determined critera that will help me to find ... ????. 

Now I want to cross my results with the observations made by Chandra mission, for that same area of interest, with a determined filtering, a specific background map and any other aditional flag like for example the publications available for the sources contained in that area, and finally,  display those results in ESASky. 

This would it be reasonable or useful from the user point of view? 

Furthemore, that service could be useful for the rest of the archives. For example, going back to X-rays example. If a  XSA user mades a filtering of data and now, from the XSA interface, we wants to cross those results with Chandra and display them in ESASky. Perhaps, could it be possible to send a json file to ESASky with all the information that it needs to do this and display the results in ESASky.

Does this make sense?

There is a bug in the "Select Sky" interface; no matter which part of the spectrum you chose, the UI always says "Optical". For example, if you pick a radio map, the word "Optical" still shows even after the new map appears.

Bug in Firefox 60.0.1 on Ubuntu.

Example: HD 228766 is identified as XMMOM J201729.7+371832 but there is no link to the catalogue in XSA, as is the case i.e. for 3xmm sources

Colored maps are pretty but without color bars with corresponding numerical values the scientific utility is low.    Could these informations be added please ?

One of the random target shows NGC2244 (an open cluster in the Rosette Nebula) according to the description but the image that is shown is of the Antenna Galaxies (NGC 4038/NGC 4039) !!!

If you load the URL sky.esa.int/?action=goto&target=208.36495%20-67.41694&hips=DSS2%20color&fov=0.6184503996975068&cooframe=J2000 there appears to be a hole in the DSS image in ESASky. It dissapears if you zoom out. This does not appear in Aladin Lite so appears to be a problem with ESASky - possibly missing Healpix tile ?

This is the position of Gaia18aod (aka Nova Circini 2018 (PNV J13532700-6725110)