The primary purpose of a GRB catalog is to provide a comprehensive and up-to-date list of all known GRBs, including their basic properties such as time of occurrence, location in the sky, and peak flux.

The redshift of the host galaxy is not a commonly used criterion for classifying GRBs, as it is often difficult to determine for distant GRBs.

The Swift Burst Alert Telescope (BAT) Catalog is the most comprehensive catalog of GRBs maintained by NASA. It contains data from the BAT instrument on board the Swift satellite, which has been observing GRBs since 2004.

The BATSE Catalog, compiled by the Burst and Transient Source Experiment (BATSE) instrument on board the Compton Gamma-Ray Observatory, is known for its focus on long-duration GRBs.

The primary goal of the GCN is to rapidly disseminate information about GRBs to the astronomical community, allowing astronomers to promptly follow up on these events with observations using various telescopes.

The GBM Catalog, compiled by the Gamma-ray Burst Monitor (GBM) instrument on board the Fermi Gamma-ray Space Telescope, is known for its emphasis on short-duration GRBs.

The approximate number of GRBs detected per year is in the range of 1000-2000, depending on the sensitivity and observational capabilities of the instruments used.

The IPN Catalog, compiled by the Interplanetary Network (IPN), is known for its focus on GRBs detected by multiple spacecraft within the IPN.

Long-duration GRBs typically have durations in the range of 10-100 seconds.

The Konus-Wind Catalog, compiled by the Konus-Wind instrument on board the Wind spacecraft, is known for its focus on GRBs detected by the Konus-Wind instrument.

Short-duration GRBs typically have durations of less than 2 seconds.

The BATSE Catalog, compiled by the Burst and Transient Source Experiment (BATSE) instrument on board the Compton Gamma-Ray Observatory, is known for its focus on GRBs detected by the BATSE instrument.

The approximate redshift range of GRBs is 0-4, indicating that they can occur at various distances from Earth.

The GBM Catalog, compiled by the Fermi Gamma-ray Burst Monitor (GBM) instrument on board the Fermi Gamma-ray Space Telescope, is known for its focus on GRBs detected by the GBM instrument.

The typical peak luminosity of a GRB is around 10^52 erg/s, making them among the most luminous objects in the universe.