EnglishFrenchSpanish

Ad


OnWorks favicon

build-astrometry-index - Online in the Cloud

Run build-astrometry-index in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command build-astrometry-index that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


build-astrometry-index - Create astrometry.net index files

SYNOPSIS


build-astrometry-index [options] -i catalog -o file -P scale

DESCRIPTION


build-astrometry-index takes a FITS catalog table containing at least RA, DEC, and
magnitude columns and converts it into an index file that can be used by the
astrometry.net programs like solve-index (1).

OPTIONS


-i catalog
Input FITS catalog: source RA,DEC, etc.

-e extension
FITS extension to read when -i is specified.

-1 index
Share another index's stars (alternatively to -i/-e).

-o file
Output filename for index

-N nside
Healpix Nside for quad-building

-l size
Minimum quad size (arcminutes)

-u size
Maximum quad size (arcminutes)

-P number
Use 'preset' values for -N, -l, and -u. The scale-number is the last two digits of
the pre-cooked index filename -- eg., index-205 is -P 5.

-P 0 should be good for images about 6 arcmin in size and it goes in steps of
sqrt(2), so:

-P 2 should work for images about 12 arcmin across

-P 4 should work for images about 24 arcmin across

-P 6 should work for images about 1 degree across

-P 8 should work for images about 2 degree across

-P 10 should work for images about 4 degree across etc... up to -P 19

-S column
Sort column (default: assume the input file is already sorted)

-f Sort in descending order (eg, for FLUX); default ascending (eg, for MAG)

-A column
Specify the RA column name in the input FITS table (default "RA")

-D column
Specify the Dec column name in the input FITS table (default "Dec")

-B val Cut any object whose sort-column value is less than val; for mags this is a bright
limit

-U Healpix Nside for uniformization (default: same as -n)

-H big healpix
Big healpix; default is all-sky

-s Nside
Big healpix Nside; default is 1

-m margin
Add a margin of margin healpixels; default 0

-n sweeps
Sweeps (ie, number of stars per fine healpix grid cell); default 10

-r radius
Deduplication radius in arcseconds; default no deduplication

-j jitter
Positional error of stars in the reference catalog (in arcsec; default 1)

-d dimquads
Number of stars in a "quad" (default 4).

-p passes
Number of rounds of quad-building (ie, number of quads per healpix cell, default
16)

-R reuse
Number of times a star can be used (default: 8)

-L max-reuses
Make extra passes through the healpixes, increasing the -r reuse limit each time,
up to max-reuses.

-E Scan through the catalog, checking which healpixes are occupied.

-I id Set the unique ID of this index

-M In-memory (don't use temp files)

-T Don't delete temp files

-t dir Use this temp directory (default: /tmp)

-v Add verbosity.

Use build-astrometry-index online using onworks.net services


Free Servers & Workstations

Download Windows & Linux apps

  • 1
    OfficeFloor
    OfficeFloor
    OfficeFloor provides inversion of
    coupling control, with its: - dependency
    injection - continuation injection -
    thread injection For more information
    visit the...
    Download OfficeFloor
  • 2
    DivKit
    DivKit
    DivKit is an open source Server-Driven
    UI (SDUI) framework. It allows you to
    roll out server-sourced updates to
    different app versions. Also, it can be
    used fo...
    Download DivKit
  • 3
    subconverter
    subconverter
    Utility to convert between various
    subscription format. Shadowrocket users
    should use ss, ssr or v2ray as target.
    You can add &remark= to
    Telegram-liked HT...
    Download subconverter
  • 4
    SWASH
    SWASH
    SWASH is a general-purpose numerical
    tool for simulating unsteady,
    non-hydrostatic, free-surface,
    rotational flow and transport phenomena
    in coastal waters as ...
    Download SWASH
  • 5
    VBA-M (Archived - Now on Github)
    VBA-M (Archived - Now on Github)
    Project has moved to
    https://github.com/visualboyadvance-m/visualboyadvance-m
    Features:Cheat creationsave statesmulti
    system, supports gba, gbc, gb, sgb,
    sgb2Tu...
    Download VBA-M (Archived - Now on Github)
  • 6
    Stacer
    Stacer
    Linux System Optimizer and Monitoring
    Github Repository:
    https://github.com/oguzhaninan/Stacer.
    Audience: End Users/Desktop. User
    interface: Qt. Programming La...
    Download Stacer
  • More »

Linux commands

Ad