GW231221_135041
Release: GWTC-4.1
Event UID: GW231221_135041-v2
Names: GW231221_135041
GPS: 1387201859.3
UTC Time: 2023-12-21 13:50:41
GraceDB: S231221ax
GCN: Query for Circulars • Notices
Timeline: Query for segments
To open GWF files, use channels names as shown for GWTC-1: https://doi.org/10.7935/82H3-HH23
CWB Search Pipeline
Date added: May 20, 2026
| far (1/yr) | 0.54 |
| network_matched_filter_snr | 10.0 |
| p_astro | 0.96 |
gstlal Search Pipeline
Date added: May 20, 2026
| far (1/yr) | 8.5 |
| network_matched_filter_snr | 8.4 |
| p_astro | 0.62 |
C00:IMRPhenomXO4a PE for GW231221_135041
Waveform Family: C00:IMRPhenomXO4a
Date added: May 20, 2026
| chi_eff | 0.02 +0.34 -0.36 |
| chirp_mass_source (M_sun) | 30.2 +9.6 -6.8 |
| final_mass_source (M_sun) | 72 +20 -14 |
| luminosity_distance (Mpc) | 4800 +3800 -2600 |
| mass_1_source (M_sun) | 47 +20 -13 |
| mass_2_source (M_sun) | 28 +13 -13 |
| redshift | 0.75 +0.45 -0.36 |
| total_mass_source (M_sun) | 75 +20 -15 |
C00:IMRPhenomXPHM-SpinTaylor PE for GW231221_135041
Waveform Family: C00:IMRPhenomXPHM-SpinTaylor
Date added: May 20, 2026
| chi_eff | 0.03 +0.38 -0.39 |
| chirp_mass_source (M_sun) | 31.0 +9.7 -6.8 |
| final_mass_source (M_sun) | 73 +21 -15 |
| luminosity_distance (Mpc) | 4600 +3800 -2600 |
| mass_1_source (M_sun) | 46 +22 -13 |
| mass_2_source (M_sun) | 29 +13 -13 |
| redshift | 0.73 +0.46 -0.36 |
| total_mass_source (M_sun) | 76 +22 -16 |
C00:Mixed+XO4a PE for GW231221_135041
Waveform Family: C00:Mixed+XO4a
Date added: May 20, 2026
| chi_eff | 0.01 +0.37 -0.38 |
| chirp_mass_source (M_sun) | 31.0 +9.6 -6.8 |
| final_mass_source (M_sun) | 73 +21 -15 |
| luminosity_distance (Mpc) | 4600 +3800 -2500 |
| mass_1_source (M_sun) | 47 +22 -13 |
| mass_2_source (M_sun) | 29 +12 -13 |
| redshift | 0.72 +0.46 -0.36 |
| total_mass_source (M_sun) | 76 +22 -16 |
Default PE
C00:Mixed PE for GW231221_135041
Waveform Family: C00:Mixed
Date added: May 20, 2026
| chi_eff | 0.01 +0.37 -0.38 |
| chirp_mass_source (M_sun) | 31.0 +9.6 -6.8 |
| final_mass_source (M_sun) | 73 +21 -15 |
| luminosity_distance (Mpc) | 4600 +3800 -2500 |
| mass_1_source (M_sun) | 47 +22 -13 |
| mass_2_source (M_sun) | 29 +12 -13 |
| redshift | 0.72 +0.46 -0.36 |
| total_mass_source (M_sun) | 76 +22 -16 |
C00:SEOBNRv5PHM PE for GW231221_135041
Waveform Family: C00:SEOBNRv5PHM
Date added: May 20, 2026
| chirp_mass_source (M_sun) | 31.0 +9.4 -6.7 |
| final_mass_source (M_sun) | 73 +21 -15 |
| luminosity_distance (Mpc) | 4500 +3800 -2500 |
| mass_1_source (M_sun) | 47 +23 -14 |
| mass_2_source (M_sun) | 29 +12 -13 |
| redshift | 0.72 +0.46 -0.35 |
| total_mass_source (M_sun) | 77 +22 -16 |
MBTA Search Pipeline
Date added: May 20, 2026
| far (1/yr) | 520 |
| network_matched_filter_snr | 8.1 |
| p_astro | 0.01 |
pycbc Search Pipeline
Date added: May 20, 2026
| far (1/yr) | 110 |
| network_matched_filter_snr | 8.3 |
| p_astro | 0.11 |
See this page as JSON