2025ApJ...982...16Q

Query : 2025ApJ...982...16Q

2025ApJ...982...16Q - Astrophys. J., 982, 16 (2025/March-3)

Unsupervised Machine Learning for Classifying CHIME Fast Radio Bursts and Investigating Empirical Relations.

QIANG D.-C., ZHENG J., YOU Z.-Q. and YANG S.

Abstract (from CDS):

Fast radio bursts (FRBs) are highly energetic millisecond-duration astrophysical phenomena typically categorized as repeaters or nonrepeaters. However, observational limitations may result in misclassifications, potentially leading to a higher proportion of repeaters than currently identified. In this study, we leverage unsupervised machine learning techniques to classify FRBs using data from the CHIME/FRB catalogs, including both the first catalog and a recent repeater catalog. By employing Uniform Manifold Approximation and Projection for dimensionality reduction and clustering algorithms (k-means and Hierarchical Density-Based Spatial Clustering of Applications with Noise), we successfully segregate repeaters and nonrepeaters into distinct clusters, identifying over 100 potential repeater candidates. Our analysis reveals several empirical relations within the clusters, including the ${\rm{log}}\,{\rm{\Delta }}{t}_{sc}-{\rm{log}}\,{\rm{\Delta }}{t}_{rw}$, ${\rm{log}}\,{\rm{\Delta }}{t}_{sc}-{\rm{log}}\,{T}_{B}$, and r-γ correlations, where Δtsc, Δtrw, TB, r, and γ represent the scattering time, rest-frame width, brightness temperature, spectral running, and spectral index, respectively. The Chow test results reveal that while some repeaters and nonrepeaters share similar empirical relationships, the overall distinctions between the two groups remain significant, reinforcing the classification of FRBs into repeaters and nonrepeaters. These findings provide new insights into the physical properties and emission mechanisms of FRBs. This study demonstrates the effectiveness of unsupervised learning in classifying FRBs and identifying potential repeaters, paving the way for more precise investigations into their origins and applications in cosmology. Future improvements in observational data and machine learning methodologies are expected to further enhance our understanding of FRBs.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Radio transient sources - Classification - Clustering - Dimensionality reduction

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 273

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Number of rows : 273
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 FRB 20190515B rB 00 03 19.2000 +03 24 36.000           ~ 5 0
2 FRB 20190107A rB 00 03 26.4000 +21 48 36.000           ~ 7 0
3 FRB 20181218A rB 00 20 14.4000 +71 21 00.000           ~ 8 0
4 FRB 20190629A rB 00 25 21.6000 +12 40 12.000           ~ 11 0
5 FRB 20190114A rB 00 35 48.0000 +19 10 12.000           ~ 8 0
6 FRB 20190102A rB 00 37 02.4000 +26 43 12.000           ~ 15 0
7 FRB 20190411C rB 00 37 19.2000 +20 30 00.000           ~ 14 0
8 FRB 20190527A rB 00 49 48.0000 +07 59 24.000           ~ 14 0
9 FRB 20190531E rB 01 00 48.0000 +00 32 24.000           ~ 7 0
10 FRB 20190226C rB 01 09 50.4000 +26 45 36.000           ~ 10 0
11 FRB 20181219C rB 01 11 04.8000 +14 06 36.000           ~ 9 0
12 FRB 20190601B rB 01 11 31.2000 +23 49 12.000           ~ 11 0
13 FRB 20181218B rB 01 12 09.6000 +69 23 24.000           ~ 6 0
14 NAME FRB 180812.J0112+80 rB 01 17 19.2000 +80 46 48.000           ~ 13 0
15 FRB 20181101A rB 01 25 02.4000 +53 52 48.000           ~ 9 0
16 FRB 20190102B rB 01 26 38.4000 +21 23 24.000           ~ 10 0
17 FRB 20190106A rB 01 28 45.6000 +46 07 12.000           ~ 9 0
18 FRB 20190221D rB 01 39 14.4000 +60 55 48.000           ~ 6 0
19 FRB 20190130A rB 01 42 33.6000 +13 09 36.000           ~ 8 0
20 FRB 20180921A rB 01 55 40.8000 +05 03 00.000           ~ 6 0
21 FRB 20190107B rB 02 13 48.0000 +83 24 00.000           ~ 8 0
22 FRB 20181203A rB 02 14 24.0000 +23 34 12.000           ~ 7 0
23 FRB 20181116A rB 02 24 12.0000 +04 31 12.000           ~ 5 0
24 FRB 20181225B rB 02 27 04.8000 +88 12 00.000           ~ 6 0
25 FRB 20190308B rB 02 34 21.6000 +83 37 12.000           ~ 10 0
26 FRB 20190129A rB 03 00 14.4000 +21 25 12.000           ~ 12 0
27 FRB 20190417C rB 03 02 43.2000 +71 15 36.000           ~ 12 0
28 FRB 20190125A rB 03 02 55.2000 +27 48 36.000           ~ 9 0
29 FRB 20181203B rB 03 09 14.4000 +24 01 12.000           ~ 9 0
30 FRB 20190422A rB 03 14 14.4000 +35 09 00.000           ~ 13 0
31 FRB 20190603B rB 03 15 28.8000 +74 16 48.000           ~ 6 0
32 FRB 20190206B rB 03 19 02.4000 +79 30 00.000           ~ 10 0
33 FRB 20181222E rB 03 22 33.6000 +86 58 12.000           ~ 13 0
34 FRB 20190617B rB 03 45 43.2000 +01 09 36.000           ~ 14 0
35 FRB 20190323D rB 03 47 31.2000 +46 55 48.000           ~ 8 0
36 FRB 20181122A rB 04 00 09.6000 +55 28 48.000           ~ 6 0
37 FRB 20190224A rB 04 02 07.2000 +83 23 24.000           ~ 7 0
38 FRB 20190201A rB 04 16 07.2000 +84 50 24.000           ~ 6 0
39 FRB 20190223A rB 04 18 52.8000 +87 39 00.000           ~ 11 0
40 FRB 20190110A rB 04 19 48.0000 +47 26 24.000           ~ 11 0
41 FRB 20190329A rB 04 22 09.6000 +73 37 48.000           ~ 11 0
42 FRB 20190613B rB 04 23 00.0000 +42 40 12.000           ~ 9 0
43 FRB 20190418A rB 04 23 09.6000 +16 02 24.000           ~ 25 0
44 FRB 20190515D rB 04 28 31.2000 -05 00 36.000           ~ 10 0
45 FRB 20181018C rB 04 28 36.0000 +37 34 12.000           ~ 6 0
46 FRB 20190529A rB 04 32 14.4000 +40 19 12.000           ~ 9 0
47 FRB 20190530A rB 04 34 57.6000 +60 35 24.000           ~ 8 0
48 FRB 20190301B rB 04 38 00.0000 +74 04 48.000           ~ 5 0
49 FRB 20190128C rB 04 39 12.0000 +78 56 24.000           ~ 10 0
50 FRB 20181214A rB 04 40 00.0000 +43 04 12.000           ~ 12 0
51 FRB 20190609C rB 04 52 40.8000 +24 03 36.000           ~ 16 0
52 FRB 20190625C rB 04 52 48.0000 +11 06 00.000           ~ 6 0
53 FRB 20190328C rB 04 55 19.2000 +81 57 36.000           ~ 9 0
54 FRB 20190415C rB 04 59 14.4000 +34 48 00.000           ~ 6 0
55 FRB 20190320E rB 05 06 33.6000 +89 09 36.000           ~ 9 0
56 FRB 20201124A rB 05 07 57.600 +26 11 24.00           ~ 307 0
57 FRB 20190604C rB 05 09 33.6000 +49 18 00.000           ~ 6 0
58 FRB 20190430A rB 05 10 48.0000 +87 00 36.000           ~ 11 0
59 FRB 20180920A rB 05 15 33.6000 +28 17 24.000           ~ 8 0
60 FRB 20190427A rB 05 15 43.2000 +07 46 12.000           ~ 9 0
61 FRB 20181117B rB 05 24 21.6000 +79 59 24.000           ~ 9 0
62 FRB 20190403G rB 05 26 57.6000 +25 46 48.000           ~ 8 0
63 FRB 20181030D rB 05 27 09.6000 +16 04 12.000           ~ 5 0
64 FRB 20190421B rB 05 29 57.6000 +62 18 36.000           ~ 6 0
65 FRB 20181119D rB 05 31 58.6980 +33 08 52.588           ~ 933 0
66 FRB 20190517C rB 05 50 00.0000 +26 37 12.000           ~ 11 0
67 FRB 20190601C rB 05 54 04.8000 +28 28 12.000           ~ 15 0
68 NAME FRB 180729.J0558+56 rB 05 59 43.2000 +56 30 00.000           ~ 13 0
69 FRB 20190208B rB 06 04 00.0000 +80 52 48.000           ~ 7 0
70 FRB 20181215A rB 06 13 31.2000 +39 20 24.000           ~ 4 0
71 FRB 20180725A rB 06 13 40.8000 +67 04 12.000           ~ 15 0
72 FRB 20190103B rB 06 14 16.8000 +19 43 48.000           ~ 7 0
73 FRB 20190518G rB 06 19 09.6000 +75 31 12.000           ~ 8 0
74 FRB 20190701C rB 06 25 26.4000 +81 37 48.000           ~ 13 0
75 FRB 20181013B rB 06 28 43.2000 +52 02 24.000           ~ 5 0
76 FRB 20181209A rB 06 32 38.4000 +68 41 24.000           ~ 9 0
77 FRB 20180911A rB 06 38 12.0000 +84 37 12.000           ~ 5 0
78 FRB 20190210B rB 06 56 43.2000 +23 42 00.000           ~ 9 0
79 FRB 20190419A rB 06 59 55.2000 +64 52 48.000           ~ 9 0
80 FRB 20190420A rB 07 06 12.0000 +55 57 36.000           ~ 7 0
81 FRB 20190109A rB 07 11 50.4000 +05 09 36.000           ~ 8 0
82 FRB 20190113A rB 07 12 33.6000 -02 59 24.000           ~ 10 0
83 FRB 20190606B rB 07 15 09.6000 +86 51 00.000           ~ 10 0
84 FRB 20190701D rB 07 28 24.0000 +66 42 00.000           ~ 13 0
85 FRB 20190619D rB 07 39 09.6000 +41 35 24.000           ~ 7 0
86 FRB 20190625D rB 07 40 04.8000 +04 52 12.000           ~ 8 0
87 FRB 20190426A rB 07 40 09.6000 +59 07 12.000           ~ 7 0
88 FRB 20190609D rB 07 43 45.6000 +51 41 24.000           ~ 9 0
89 FRB 20181014C rB 07 51 28.8000 +41 35 24.000           ~ 7 0
90 FRB 20190201B rB 07 52 48.0000 +55 34 48.000           ~ 9 0
91 FRB 20181226D rB 08 00 52.8000 +22 09 36.000           ~ 9 0
92 FRB 20190604G rB 08 03 14.4000 +59 30 00.000           ~ 11 0
93 FRB 20180909A rB 08 14 31.2000 +56 45 36.000           ~ 8 0
94 FRB 20190304A rB 08 18 02.4000 +74 36 36.000           ~ 12 0
95 FRB 20190409B rB 08 26 36.0000 +63 28 12.000           ~ 12 0
96 FRB 20190128B rB 08 29 45.6000 +23 17 24.000           ~ 6 0
97 FRB 20190303B rB 08 34 57.6000 +66 01 48.000           ~ 10 0
98 FRB 20181231B rB 08 35 04.8000 +55 59 24.000           ~ 14 0
99 FRB 20190325A rB 08 41 38.4000 +83 04 12.000           ~ 6 0
100 FRB 20190203B rB 08 42 33.6000 +61 53 24.000           ~ 5 0
101 FRB 20181027A rB 08 47 36.0000 -04 14 24.000           ~ 8 0
102 FRB 20190322B rB 08 48 07.2000 +73 20 24.000           ~ 7 0
103 FRB 20190221A rB 08 50 24.0000 +09 54 00.000           ~ 10 0
104 FRB 20190203A rB 08 54 43.2000 +70 49 12.000           ~ 13 0
105 FRB 20190403B rB 09 01 52.8000 +01 27 36.000           ~ 5 0
106 FRB 20181030E rB 09 02 40.8000 +08 53 24.000           ~ 10 0
107 FRB 20190212B rB 09 19 57.6000 +52 06 36.000           ~ 10 0
108 FRB 20190208C rB 09 26 12.0000 +83 33 36.000           ~ 10 0
109 FRB 20181022C rB 09 26 14.4000 +83 48 36.000           ~ 6 0
110 FRB 20181115A rB 09 31 55.2000 +56 24 00.000           ~ 8 0
111 FRB 20190630D rB 09 33 26.4000 +08 54 00.000           ~ 10 0
112 FRB 20180925B rB 09 41 48.0000 +20 59 24.000           ~ 8 0
113 FRB 20181013C rB 09 44 16.8000 +34 06 00.000           ~ 6 0
114 FRB 20181125A rB 09 51 45.6000 +33 55 48.000           ~ 14 0
115 FRB 20190127B rB 10 03 40.8000 +83 33 36.000           ~ 8 0
116 FRB 20190502C rB 10 22 24.0000 +82 58 12.000           ~ 11 0
117 FRB 20190218C rB 10 27 50.4000 +77 57 00.000           ~ 6 0
118 FRB 20181128B rB 10 28 52.8000 +38 16 48.000           ~ 6 0
119 FRB 20190222B rB 10 42 45.6000 +19 37 12.000           ~ 7 0
120 FRB 20190204A rB 10 45 19.2000 +61 31 48.000           ~ 10 0
121 FRB 20190326A rB 10 47 36.0000 +74 13 12.000           ~ 5 0
122 FRB 20190519F rB 11 02 31.2000 +77 13 48.000           ~ 8 0
123 FRB 20190516B rB 11 09 21.6000 +07 22 12.000           ~ 6 0
124 FRB 20180907E rB 11 11 31.2000 +47 05 24.000           ~ 10 0
125 FRB 20190519E rB 11 13 07.2000 +41 39 00.000           ~ 10 0
126 FRB 20190605C rB 11 13 16.8000 -05 11 24.000           ~ 12 0
127 FRB 20190624A rB 11 13 16.8000 +69 46 48.000           ~ 9 0
128 FRB 20180923D rB 11 16 19.2000 +48 45 00.000           ~ 8 0
129 FRB 20190428A rB 11 22 55.2000 +23 19 48.000           ~ 9 0
130 FRB 20190130B rB 11 28 26.4000 +16 03 00.000           ~ 12 0
131 FRB 20190416B rB 11 28 45.6000 +35 57 00.000           ~ 7 0
132 FRB 20190518D rB 11 38 52.8000 +89 18 36.000           ~ 5 0
133 FRB 20181223B rB 11 39 33.6000 +21 35 24.000           ~ 10 0
134 FRB 20190617A rB 11 54 24.0000 +83 52 12.000           ~ 11 0
135 FRB 20190402A rB 11 54 26.4000 +47 06 00.000           ~ 6 0
136 FRB 20190212D rB 11 55 19.2000 +66 43 12.000           ~ 5 0
137 FRB 20181022D rB 11 56 43.2000 +36 31 48.000           ~ 7 0
138 FRB 20190303D rB 11 58 16.8000 +70 50 24.000           ~ 8 0
139 FRB 20190423A rB 11 58 43.2000 +55 15 00.000           ~ 16 0
140 FRB 20190614A rB 11 59 09.6000 +88 19 48.000           ~ 9 0
141 NAME FRB 180810.J1159+83 rB 12 01 38.4000 +83 08 24.000           ~ 13 0
142 FRB 20181223C rB 12 04 12.0000 +27 34 48.000           ~ 24 0
143 FRB 20190414A rB 12 05 45.6000 +38 54 00.000           ~ 6 0
144 FRB 20181226B rB 12 10 38.4000 +12 25 48.000           ~ 8 0
145 FRB 20190224E rB 12 12 09.6000 +61 32 24.000           ~ 6 0
146 FRB 20190228A rB 12 13 55.2000 +22 54 00.000           ~ 11 0
147 FRB 20181213B rB 12 14 04.8000 +53 42 00.000           ~ 9 0
148 FRB 20181222D rB 12 32 48.0000 +56 09 36.000           ~ 8 0
149 FRB 20190308C rB 12 33 26.4000 +44 23 24.000           ~ 13 0
150 FRB 20181119C rB 12 40 24.0000 +82 09 36.000           ~ 5 0
151 FRB 20180920B rB 12 44 21.6000 +63 31 12.000           ~ 11 0
152 FRB 20190621B rB 12 52 33.6000 +55 38 24.000           ~ 8 0
153 FRB 20190131E rB 13 02 36.0000 +80 55 12.000           ~ 11 0
154 FRB 20190627A rB 13 03 33.6000 +00 45 00.000           ~ 9 0
155 FRB 20181231C rB 13 08 21.6000 +69 10 48.000           ~ 9 0
156 NAME FRB 180729.J1316+55 rB 13 17 36.0000 +55 34 48.000           ~ 15 0
157 FRB 20190323C rB 13 18 00.0000 +40 04 12.000           ~ 5 0
158 FRB 20190122C rB 13 22 24.0000 +17 34 12.000           ~ 11 0
159 FRB 20190304B rB 13 39 26.4000 +24 11 24.000           ~ 9 0
160 FRB 20181012B rB 13 45 19.2000 +64 09 00.000           ~ 8 0
161 FRB 20190621C rB 13 46 16.8000 +05 13 48.000           ~ 10 0
162 FRB 20190425B rB 14 00 28.8000 +88 36 00.000           ~ 12 0
163 FRB 20190609B rB 14 01 57.6000 +88 21 00.000           ~ 10 0
164 FRB 20181128D rB 14 22 28.8000 +59 55 48.000           ~ 6 0
165 FRB 20181213C rB 14 25 36.0000 +47 27 36.000           ~ 5 0
166 FRB 20190111A rB 14 28 00.0000 +26 46 48.000           ~ 10 0
167 FRB 20190124C rB 14 28 40.8000 +28 22 48.000           ~ 8 0
168 FRB 20190125B rB 14 29 48.0 +49 37 54           ~ 11 0
169 FRB 20190214C rB 14 35 28.8000 +19 21 36.000           ~ 10 0
170 FRB 20190403E rB 14 40 52.8000 +86 32 24.000           ~ 11 0
171 FRB 20190227B rB 14 42 09.6000 +39 48 00.000           ~ 4 0
172 FRB 20181022E rB 14 44 43.2000 +27 07 48.000           ~ 10 0
173 FRB 20190612B rB 14 48 50.4000 +04 18 36.000           ~ 10 0
174 FRB 20190304C rB 14 52 02.4000 +26 43 12.000           ~ 9 0
175 FRB 20180915B rB 15 00 55.2000 +25 01 12.000           ~ 7 0
176 FRB 20190625A rB 15 11 38.4000 +32 52 48.000           ~ 7 0
177 FRB 20181221A rB 15 22 19.2000 +25 51 36.000           ~ 17 0
178 FRB 20190619B rB 15 26 57.6000 +82 09 00.000           ~ 7 0
179 FRB 20181116B rB 15 30 38.4000 +64 56 24.000           ~ 6 0
180 FRB 20190616A rB 15 36 07.2000 +34 28 48.000           ~ 9 0
181 FRB 20190220A rB 15 48 50.4000 +74 09 36.000           ~ 7 0
182 FRB 20190124D rB 15 49 02.4000 +81 13 48.000           ~ 5 0
183 FRB 20181017B rB 15 51 02.4000 +78 30 00.000           ~ 13 0
184 FRB 20181229B rB 15 53 28.8000 +19 46 48.000           ~ 12 0
185 FRB 20180923C rB 15 56 33.6000 +22 51 00.000           ~ 6 0
186 FRB 20190222C rB 15 56 43.2000 +40 01 48.000           ~ 8 0
187 FRB 20181224E rB 15 57 16.8000 +07 19 12.000           ~ 10 0
188 FRB 20190518C rB 16 08 02.4000 +04 38 24.000           ~ 9 0
189 FRB 20181127A rB 16 15 12.0000 +25 25 48.000           ~ 9 0
190 FRB 20190206A rB 16 19 24.0000 +09 21 36.000           ~ 15 0
191 FRB 20190110C rB 16 27 55.2000 +41 25 12.000           ~ 36 0
192 FRB 20190420C rB 16 32 24.0000 +37 15 00.000           ~ 6 0
193 FRB 20190628B rB 16 33 55.2000 +80 08 24.000           ~ 9 0
194 FRB 20190403C rB 16 39 19.2000 +58 42 00.000           ~ 5 0
195 FRB 20181228B rB 16 41 43.2000 +63 51 00.000           ~ 14 0
196 FRB 20181214F rB 16 50 28.8000 +32 26 24.000           ~ 9 0
197 FRB 20190118A rB 16 53 14.4000 +11 33 00.000           ~ 12 0
198 FRB 20190109B rB 16 53 52.8000 +01 15 00.000           ~ 10 0
199 FRB 20190320C rB 16 58 55.2000 +22 22 48.000           ~ 6 0
200 FRB 20190419B rB 17 01 04.8000 +86 44 24.000           ~ 9 0
201 FRB 20190425A rB 17 02 41.0 +21 34 34           ~ 47 0
202 FRB 20190112A rB 17 11 55.2000 +61 12 00.000           ~ 12 0
203 FRB 20190404B rB 17 19 09.6000 +40 00 00.000           ~ 6 0
204 FRB 20190111B rB 17 20 04.8000 +13 31 48.000           ~ 9 0
205 FRB 20190501B rB 17 25 48.0000 +54 21 36.000           ~ 9 0
206 FRB 20190116F rB 17 26 40.8000 +75 00 00.000           ~ 6 0
207 FRB 20181126A rB 17 28 12.0000 +81 10 12.000           ~ 8 0
208 FRB 20190408A rB 17 28 48.0000 +71 36 00.000           ~ 7 0
209 FRB 20181013A rB 17 31 19.2000 +38 24 36.000           ~ 6 0
210 FRB 20190410A rB 17 33 52.8000 -02 22 12.000           ~ 11 0
211 FRB 20190410B rB 17 43 02.4000 +15 10 12.000           ~ 10 0
212 FRB 20190218B rB 17 54 48.0000 +17 55 48.000           ~ 13 0
213 FRB 20181128C rB 17 55 04.8000 +49 42 36.000           ~ 11 0
214 FRB 20190621D rB 18 02 31.2000 +78 53 24.000           ~ 11 0
215 FRB 20190520A rB 18 14 04.8000 +26 19 12.000           ~ 11 0
216 FRB 20190226B rB 18 14 16.8000 +61 48 36.000           ~ 9 0
217 FRB 20190430C rB 18 28 52.8000 +24 55 12.000           ~ 17 0
218 FRB 20181220B rB 18 29 28.8000 +84 52 12.000           ~ 6 0
219 FRB 20190301D rB 18 34 52.8000 +74 40 48.000           ~ 8 0
220 FRB 20190309A rB 18 35 50.4000 +52 24 36.000           ~ 8 0
221 FRB 20180915A rB 18 42 12.0000 +17 54 36.000           ~ 6 0
222 FRB 20181122B rB 18 44 19.2000 +85 01 12.000           ~ 5 0
223 FRB 20190327A rB 18 45 14.4000 +34 16 48.000           ~ 8 0
224 FRB 20190128D rB 18 53 16.8000 +17 26 24.000           ~ 5 0
225 FRB 20190412B rB 19 02 36.0000 +19 15 00.000           ~ 10 0
226 FRB 20181218C rB 19 03 55.2000 +58 14 24.000           ~ 6 0
227 FRB 20180904A rB 19 06 19.2000 +81 13 12.000           ~ 7 0
228 FRB 20190221B rB 19 07 04.8000 +27 51 36.000           ~ 7 0
229 FRB 20190210C rB 19 43 00.0000 +89 06 00.000           ~ 9 0
230 FRB 20190519J rB 19 44 50.4000 +86 55 48.000           ~ 8 0
231 FRB 20190124E rB 19 51 00.0000 +20 34 12.000           ~ 8 0
232 FRB 20190423B rB 19 54 19.2000 +26 11 24.000           ~ 13 0
233 FRB 20190622A rB 19 55 55.2000 +85 48 36.000           ~ 8 0
234 FRB 20181119B rB 19 57 31.2000 +31 07 12.000           ~ 7 0
235 FRB 20190211B rB 19 58 28.8000 +61 22 12.000           ~ 6 0
236 FRB 20181123A rB 20 03 02.4000 +55 52 12.000           ~ 8 0
237 FRB 20181226E rB 20 14 14.4000 +73 38 24.000           ~ 11 0
238 FRB 20190624B rB 20 18 36.0000 +73 36 36.000           ~ 12 0
239 FRB 20181216A rB 20 25 07.2000 +53 31 48.000           ~ 6 0
240 FRB 20181221B rB 20 25 14.4000 +80 58 48.000           ~ 10 0
241 FRB 20181013E rB 20 29 07.2000 +69 01 12.000           ~ 7 0
242 FRB 20181129B rB 20 30 14.4000 +81 19 12.000           ~ 8 0
243 FRB 20190101B rB 20 31 04.8000 +29 53 24.000           ~ 8 0
244 FRB 20181030C rB 20 39 19.2000 +03 59 24.000           ~ 7 0
245 FRB 20180928A rB 20 51 48.0000 +30 51 00.000           ~ 10 0
246 FRB 20190210E rB 20 54 36.0000 +86 40 12.000           ~ 7 0
247 FRB 20180907A rB 21 23 28.8000 +29 27 36.000           ~ 7 0
248 FRB 20190618A rB 21 25 00.0000 +25 26 24.000           ~ 12 0
249 NAME FRB 180801.J2130+72 rB 21 30 07.2000 +72 43 12.000           ~ 17 0
250 FRB 20190318A rB 21 36 26.4000 +74 27 36.000           ~ 6 0
251 FRB 20190403D rB 21 46 07.2000 +84 17 24.000           ~ 5 0
252 FRB 20180923A rB 21 50 26.4000 +71 55 12.000           ~ 7 0
253 FRB 20190429B rB 21 59 43.2000 +03 57 36.000           ~ 11 0
254 FRB 20190531C rB 22 04 33.6000 +43 00 00.000           ~ 9 0
255 FRB 20190210D rB 22 17 58.0 +52 53 20           ~ 11 0
256 FRB 20190215B rB 22 20 09.6000 +45 20 24.000           ~ 5 0
257 FRB 20190106B rB 22 22 31.2000 +46 07 48.000           ~ 12 0
258 FRB 20181018B rB 22 27 16.8000 +71 54 36.000           ~ 5 0
259 FRB 20190405A rB 22 28 04.8000 +20 57 36.000           ~ 4 0
260 FRB 20190124F rB 22 35 40.8000 +05 18 00.000           ~ 8 0
261 FRB 20190205A rB 22 48 52.8000 +83 22 12.000           ~ 7 0
262 FRB 20180922A rB 22 49 09.6000 +69 40 12.000           ~ 6 0
263 FRB 20190519H rB 22 51 57.6000 +87 22 12.000           ~ 10 0
264 FRB 20190202A rB 22 56 48.0000 +17 06 00.000           ~ 6 0
265 FRB 20190609A rB 23 01 12.0000 +87 56 24.000           ~ 16 0
266 FRB 20181220A rB 23 04 26.4000 +48 25 48.000           ~ 26 0
267 FRB 20181230A rB 23 06 45.6000 +83 22 12.000           ~ 9 0
268 FRB 20180916A rB 23 15 52.8000 +80 19 48.000           ~ 8 0
269 FRB 20181226C rB 23 16 12.0000 +44 56 24.000           ~ 6 0
270 FRB 20190423C rB 23 16 19.2000 +86 58 12.000           ~ 5 0
271 FRB 20180910A rB 23 31 04.8000 +88 12 36.000           ~ 14 0
272 FRB 20181224A rB 23 40 26.4000 +44 33 36.000           ~ 6 0
273 FRB 20181130A rB 23 40 45.6000 +46 29 24.000           ~ 9 0

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