Lemur

File

# Lemur Client – Windows Installer

# Lemur Client – Linux Debian Package

Notes

Installer for Windows x64

Debian package for Linux x64

Size

56.2 MB

37.7 MB

Documentation

File

# Lemur Project Manager – User Guide

# Lemur Config Manager – User Guide

# Lemur LookSky – User Guide

# Lemur Presentation

# Lemur License Agreement

Notes

Project Manager

Configuration Manager

LookSky frame viewer

Presentation

License Agreement

Size

415 kB

1.9 MB

319 kB

5.7 MB

158 kB

Technical characteristics

Characteristic

Automatic search for space objects

Frame size

Field of view of the optical system

Frame processing speed

 

 

 

Type of images of stars in frame

Type of images of the investigated objects in frame

Accuracy of estimation of angular coordinates

Identification of detected objects

 

Architecture

Minimum technical requirements for the server part

 

Minimum technical requirements for the client part

 

Parameter

satellites, asteroids

from 512х512 to 16000х16000 pixels

from 0.5 to 10 degrees

3-5 seconds / 10 frames at:

– 10 processor cores;

– frame size is 1920×1200 pixels;

– 4 or more stars in frame

point/stroke

point/stroke

0.2-0.5 of pixel angular size

– satellites with catalog in TLE format

– asteroids with MPC catalog

client-server

os: ubuntu 18.04, x64, cpu: 4 core, ~2.5 GHz,

RAM: 16 GB, HDD: 1 TB

os: ubuntu 18+, linux mint 19+, windows 10 x64,

monitor: 1024×768, software: gnuplot

Change Log

Added:

  • coreaip, added daily download of satellite catalog from the web resource “space-track” (https://www.space-track.org)
  • coreaip, added query to the web resource “horizons”(https://ssd.jpl.nasa.gov/horizons) to get the RA\DEC of the frame center to speed up the identification procedures
  • lemurprojectmanager, implemented the check new client version function
  • lemurprojectmanager, added launch of modules “LookSky” and “Lemur Config Manager”
  • lemurservermanager, added the server launch function – start, stop, restart

    Changed:

    • coreaip, improved function of using the previous frame identification
    • client, restored the automatic client software update function
    • client distro, restored the updating user configuration files function

    Added:

    • client, new project “Convert Measurement” – conversion of optical measurements
    • lemurprojectmanager, added support for os linux
    • lemurprojectmanager, added UI “Details by raw sources”
    • core, new project “stacking” – frame composition with asteroid motion parameter
    • core, added photometric reduction accuracy output to frame header
    • server, new project “Lemur Server Manager” – show/update users credentials, delete data from database, storage and logs

      Fixed:

      • lemurprojectmanager, improved threading model and fixed UI freezing when running the app for a long time
      • core, reduced the number of queries to database

      Added:

      • client, new project “Lemur Project Manager”
      • client, new project “Lemur Config Manager”
      • coreaip, a new astrometric solution based on third-party software “ASTAP”
      • coreaip, added the ability to detect satellites in frames with daily star tracking
      • coreaip, implemented frame addition with the function of searching for moving objects

        Fixed:

        • coreaip, updated function for identifying measurements with the NORAD catalog

        Security:

        • coreaip, verification of registration data for the telescope has been implemented

        Security:

        • app, trial extension

        Added:

        • looksky, added ellipsis and hint for series path in “Manager of Survey” window

        Changed:

        • coreaip, changed moving object detection rules for long series
        • coreaip, removed the blanking of the frame by the anomalous pixel catalog
        • coreaip, asteroid detection module, added a check of the waiting time for data from the MPC service: in case of large delays in the MPC service, module will not be terminated by the control process
        • looksky, the step-frame with the minimum datetime from list is defined as the base frame of the series

        Fixed:

        • coreaip, fixed error getting data from MPC when using two requests
        • coreaip, fixed error of deleting duplicate objects

        Added:

        • coreaip, with a small number of measurements from a frame, organize an enumeration of all possible combinations during preliminary identification
        • coreaip, when choosing a typical segment, the average value of the amplitude of the segments is used
        • coreaip, identification of satellites with the NORAD catalog
        • coreaip, unification of subtrajectories (subseries) when identified with the NORAD catalog
        • coreaip, added an option to save segments to the user folder
        • coreaip, added a parameter that excludes access to the astrometry.net service
        • coreaip, added auto-calculation of interframe processing time
        • coreaip, mimimization of the number of calls to the MPC service: access by the first and last frames, interpolation of coordinates

        Changed:

        • icaip, refactoring project
        • coreaip, refactoring the “measured” structure
        • coreaip, sorting “SAT” -objects “by the time of the first measurement” instead of “by brightness”

        Fixed:

        • coreaip, error in creating a blank trajectory file
        • coreaip, added idclone parameter to the “series” table
        • coreaip, control by a clone of “own” series with the “in_progress” status
        • coreaip, exclusion of loading frames for interframe processing in the “AC” project
        • coreaip, division of saving “series” files with “frame” files

        Added:

        • coreaip, added control of series with the “in_progress” status
        • launcher, added simplified CLI to start/stop/restart the application server

          Fixed:

          • coreaip, fixed error of receiving data from MPC

          Added:

          • checkobjects, the identification of found objects with the MPC catalog has been added
          • coreaip, encapsulated loading TLE, SG(D)P4(8) forecast, calculation of ra\de, formation of a file of satellites for the viewer
          • coreaip, with a large number of measurements in the trajectory, the rejection of measurements for object detection is implemented
          • houghgso, the launch of the module was implemented based on the calculated parameters of the telescope movement (according to the coordinates of the sighting axis), which made it possible to use the module to detect LEO, MEO, GSO objects
          • lemurrouter, added a module for setup the IP address of web- and update-server of a client application

          Changed:

          • coreaip, the calculation of the photometric reduction coefficients is carried out on measurements identified with the star catalog, without using the internal catalog
          • fitting, exclusion of module from the work of the hand-held meter on the client-side
          • launchvo, reworked into interaip project

          Fixed:

          • astrometry.yes, fixed the error in forming the path to the log file
          • handfit, fixed a config file autodetection error
          • hough, fixed a bug due to which lower speed limit was set to a constant

          Changed:

          • coreaip, redefined start of intraframe processing: previously launcher, now fitting and skyident
          • launchpo, remove artifacts

          Fixed:

          • coreaip, bug fix in the module for estimating image parameters

          Added:

          • coreaip, the function of determining the coma on the frame, blanking of close measurements has been implemented
          • cloneaip, to ensure stable long-term operation of the clone, the clone is restarted every 24 hours
          • lemurfox, added config file to store server address and user authentication data
          • lemurfox, lemurguest, implemented a function of getting current project statistics
          • system, build, developed a installation package for server application: install and update

          Changed:

          • coreaip, to reduce the load on the star catalog database with a “large” query, a list of queries is organized
          • coreaip, for large frames, a fragmentary calculation of the correlation frame is implemented
          • lemurupdater, created a configuration file to set address of client application update server

          Fixed:

          • configsupdater, restored module for updating user config files
          • coreaip, fixing the division by zero error in the secondary processing module