Candidates

These are live results from the database that receives nightly observational data from the LaserSETI observatories.

Signal Candidates by Level

Over the lifetime of the project, these are the signal counts detected for each type. Even though a single instrument is composed of two cameras looking at the same field of view, the cameras operate independently since it's possible an event could be seen by one or both cameras at the two different locations. Each camera identifies sources and whittles them down the candidates based on criteria designed to identify a laser transmission.

• Level 1 candidates, or C1s, are simply pixels measurably brighter than the noise level
• C2 connects C1s that are vertically aligned, where each row represents about a millsecond of signal transmission
• C3s are C2s that moved no faster than stars horizontally (which is at most 15 degrees per hour or 360 degrees per day)
• C4s are pairs of C3s whose spacing matches the transmission grating dispersion and are of comparable size, shape, and brightness

C1	C2	C3	C4
159,123,701,625	77,414,083	61,394,637	28,413

C5 Candidates

A true C5 is two instruments seeing the same C4 but from different observatories. The instruments are paired with the same fields of view as follows: (IFA1PC, RFO2PC) and (IFA2PC, RFO1PC).

Instruments	Cameras	Start Time	Count
IFA2PC, RFO1PC	horz-cam, vert-cam	11/12/2023 11:11:51 AM	12

If anything appears in the table above, it could be what we're looking for.

Double C4 Candidates

These candidates are either C4s seen by the two cameras within the same instrument or a coincidental event across different fields of view

Instruments	Cameras	Count	Flips
IFA1PC	horz-cam, vert-cam	2	0.0%
IFA1PC, IFA2PC	horz-cam	1	0.0%
IFA1PC, RFO1PC	vert-cam	1	0.0%
RFO1PC	horz-cam, vert-cam	33	0.0%
RFO1PC, RFO2PC	vert-cam	1	0.0%
RFO2PC	horz-cam, vert-cam	11	0.0%

Candidate Details

Candidates must be seen by multiple cameras within the allowable time limit of the CCD readout technique (TDI). To date, all have been single instrument false positives, believed to be caused by a bug in the camera.

Event: 9/15/2021 6:10:02 AM UTC

RFO2PC: vert-cam
Timeframe: 6:10:02.390
SNR: 5.48
Radius: 14
Warning: Camera flip in area of interest

RFO2PC: horz-cam
Timeframe: 6:10:03.530
SNR: 5.04
Radius: 58
Warning: Camera flip in area of interest

Event: 12/2/2021 10:51:17 AM UTC

RFO1PC: horz-cam
Timeframe: 10:51:17.997
SNR: 5.11
Radius: 33.75
False positive: Camera flip at candidate

RFO1PC: vert-cam
Timeframe: 10:51:18.983
SNR: 5.34
Radius: 20.5
False positive: Camera flip at candidate

Event: 12/6/2021 5:53:13 AM UTC

RFO1PC: horz-cam
Timeframe: 5:53:13.990
SNR: 9.63
Radius: 39.5
False positive: Camera flip at candidate

RFO1PC: vert-cam
Timeframe: 5:53:16.747 – 5:53:16.763
SNR: 6.8
Radius: 37.5
Warning: Camera flip in area of interest

Event: 1/26/2022 5:55:09 AM UTC

RFO1PC: vert-cam
Timeframe: 5:55:09.700 – 5:55:09.943
SNR: 7.19 – 10.39
Radius: 34 – 38
False positive: Camera flip at candidate

RFO1PC: vert-cam
Timeframe: 5:55:12.667
SNR: 13.1
Radius: 37.75
Warning: Camera flip in area of interest

RFO1PC: horz-cam
Timeframe: 5:55:17.113 – 5:55:17.127
SNR: 7.33
Radius: 38.5
Warning: Camera flip in area of interest

Event: 2/2/2022 6:11:03 AM UTC

RFO1PC: horz-cam
Timeframe: 6:11:03.450
SNR: 16.18
Radius: 38.5
False positive: Camera flip at candidate

RFO1PC: horz-cam
Timeframe: 6:11:07.870
SNR: 10.48
Radius: 37.75
False positive: Camera flip at candidate

RFO1PC: vert-cam
Timeframe: 6:11:12.293
SNR: 9.86
Radius: 38.25
Warning: Camera flip in area of interest

Event: 2/4/2022 6:05:30 AM UTC

RFO1PC: horz-cam
Timeframe: 6:05:30.613
SNR: 8.01
Radius: 37.5
False positive: Camera flip at candidate

RFO1PC: vert-cam
Timeframe: 6:05:32.040
SNR: 12.34
Radius: 37.5
Warning: Camera flip in area of interest

RFO1PC: vert-cam
Timeframe: 6:05:33.520
SNR: 16.23
Radius: 38
False positive: Camera flip at candidate

RFO1PC: horz-cam
Timeframe: 6:05:36.440
SNR: 8.57
Radius: 38.5
Warning: Camera flip in area of interest

Event: 2/22/2022 7:08:30 AM UTC

RFO1PC: vert-cam
Timeframe: 7:08:30.740
SNR: 13.48
Radius: 34.5
False positive: Camera flip at candidate

RFO1PC: vert-cam
Timeframe: 7:08:31.993
SNR: 8.31
Radius: 34.25
False positive: Camera flip at candidate

RFO1PC: horz-cam
Timeframe: 7:08:35.550
SNR: 10.13
Radius: 38.25
False positive: Camera flip at candidate

Event: 3/22/2022 5:41:58 AM UTC

RFO1PC: vert-cam
Timeframe: 5:41:58.110 – 5:41:58.127
SNR: 8.24
Radius: 37.75
False positive: Camera flip at candidate

RFO1PC: horz-cam
Timeframe: 5:41:59.597 – 5:42:01.063
SNR: 6.92 – 8.98
Radius: 38 – 38.5
False positive: Camera flip at candidate

Event: 5/5/2022 5:15:22 AM UTC

RFO2PC: horz-cam
Timeframe: 5:15:22.880
SNR: 7.83
Radius: 38.5
False positive: Camera flip at candidate

RFO2PC: horz-cam
Timeframe: 5:15:25.823 – 5:15:27.287
SNR: 6.16 – 6.51
Radius: 38.5
False positive: Camera flip at candidate

RFO2PC: vert-cam
Timeframe: 5:15:30.350
SNR: 5.33
Radius: 22
False positive: Camera flip at candidate

Event: 5/5/2022 5:16:03 AM UTC

RFO1PC: horz-cam
Timeframe: 5:16:03.350 – 5:16:06.280
SNR: 12.1 – 14.93
Radius: 38.25 – 39.25
False positive: Camera flip at candidate

RFO1PC: vert-cam
Timeframe: 5:16:09.060
SNR: 9.51
Radius: 37.5
Warning: Camera flip in area of interest

RFO1PC: vert-cam
Timeframe: 5:16:12.010
SNR: 9.49
Radius: 38.25
Warning: Camera flip in area of interest

Event: 5/16/2022 5:40:11 AM UTC

RFO1PC: horz-cam
Timeframe: 5:40:11.487
SNR: 5.42
Radius: 44
False positive: Camera flip at candidate

RFO1PC: vert-cam
Timeframe: 5:40:15.707 – 5:40:20.263
SNR: 6.57 – 8.46
Radius: 37.5 – 38.25
Warning: Camera flip in area of interest

RFO1PC: vert-cam
Timeframe: 5:40:22.530 – 5:40:24.793
SNR: 6.16 – 11.1
Radius: 37.5 – 37.75
False positive: Camera flip at candidate

Event: 7/22/2022 5:01:56 AM UTC

RFO1PC: horz-cam
Timeframe: 5:01:56.257
SNR: 8.75
Radius: 38.5
Warning: Camera flip in area of interest

RFO1PC: vert-cam
Timeframe: 5:01:59.023 – 5:02:00.507
SNR: 6.48 – 7.8
Radius: 37.25 – 37.5

Event: 7/29/2022 8:07:54 AM UTC

RFO1PC: vert-cam
Timeframe: 8:07:54.523
SNR: 8.89
Radius: 39.75

RFO1PC: horz-cam
Timeframe: 8:07:56.767
SNR: 7.23
Radius: 37.25

Event: 8/26/2022 4:42:08 AM UTC

RFO1PC: horz-cam
Timeframe: 4:42:08.997 – 4:42:10.703
SNR: 5.76 – 9.66
Radius: 38 – 40

RFO1PC: vert-cam
Timeframe: 4:42:11.727 – 4:42:11.740
SNR: 7.45
Radius: 37.5
Warning: Camera flip in area of interest

Event: 8/28/2022 5:17:27 AM UTC

RFO1PC: horz-cam
Timeframe: 5:17:27.220
SNR: 15.36
Radius: 39.25

RFO1PC: vert-cam
Timeframe: 5:17:29.970 – 5:17:34.423
SNR: 7.51 – 10.05
Radius: 37.75 – 38

RFO1PC: horz-cam
Timeframe: 5:17:38.910
SNR: 7.83
Radius: 38.25

RFO1PC: horz-cam
Timeframe: 5:17:40.377
SNR: 6.21
Radius: 38.75

Event: 8/31/2022 4:52:29 AM UTC

RFO1PC: horz-cam
Timeframe: 4:52:29.597
SNR: 9.94
Radius: 40.75

RFO1PC: vert-cam
Timeframe: 4:52:32.273 – 4:52:36.687
SNR: 6.19 – 10.81
Radius: 38 – 38.25

RFO1PC: vert-cam
Timeframe: 4:52:38.150 – 4:52:41.087
SNR: 6.42 – 10.68
Radius: 37.75 – 38
Warning: Camera flip in area of interest

Event: 9/1/2022 4:40:55 AM UTC

RFO1PC: horz-cam
Timeframe: 4:40:55.007 – 4:40:56.477
SNR: 10.4 – 13.9
Radius: 39.25 – 39.75

RFO1PC: vert-cam
Timeframe: 4:40:57.733
SNR: 9.25
Radius: 37.75
Warning: Camera flip in area of interest

Event: 9/3/2022 5:11:51 AM UTC

RFO2PC: horz-cam
Timeframe: 5:11:51.707 – 5:11:55.830
SNR: 6.51 – 6.84
Radius: 34

RFO2PC: vert-cam
Timeframe: 5:11:57.050
SNR: 5.71
Radius: 21.75

Event: 9/22/2022 5:13:51 AM UTC

RFO1PC: horz-cam
Timeframe: 5:13:51.123
SNR: 6.76
Radius: 39.5

RFO1PC: vert-cam
Timeframe: 5:13:55.453 – 5:13:56.940
SNR: 10.94 – 11.67
Radius: 37.75 – 38.5
Warning: Camera flip in area of interest

Event: 9/24/2022 5:32:22 AM UTC

RFO2PC: horz-cam
Timeframe: 5:32:22.973 – 5:32:22.990
SNR: 5.82
Radius: 38

RFO2PC: vert-cam
Timeframe: 5:32:26.127 – 5:32:27.533
SNR: 6.08 – 6.58
Radius: 21.25 – 22.75
Warning: Camera flip in area of interest

Event: 9/28/2022 3:07:46 PM UTC

IFA1PC: horz-cam
Timeframe: 15:07:46.570
SNR: 8.25
Radius: 38.75
False positive: Camera flip at candidate

IFA1PC: vert-cam
Timeframe: 15:07:46.570
SNR: 17.42 – 17.62
Radius: 0 – 48.75
False positive: Camera flip at candidate

Event: 10/14/2022 5:15:47 AM UTC

RFO1PC: horz-cam
Timeframe: 5:15:47.693 – 5:15:52.117
SNR: 5.83 – 6.05
Radius: 38.75 – 42.5

RFO1PC: vert-cam
Timeframe: 5:15:54.913 – 5:16:00.880
SNR: 10.6 – 12.89
Radius: 37 – 38

Event: 10/19/2022 5:13:22 AM UTC

RFO2PC: horz-cam
Timeframe: 5:13:22.393 – 5:13:25.323
SNR: 5.37 – 6.84
Radius: 39 – 40

RFO2PC: vert-cam
Timeframe: 5:13:26.233
SNR: 6.67
Radius: 21.5
Warning: Camera flip in area of interest

Event: 10/19/2022 9:24:44 AM UTC

IFA1PC: vert-cam
Timeframe: 9:24:44.263
SNR: 22.44
Radius: 3.25

RFO1PC: vert-cam
Timeframe: 9:24:44.530
SNR: 5.36
Radius: 55
Warning: Camera flip in area of interest

Event: 10/21/2022 6:08:43 AM UTC

RFO2PC: vert-cam
Timeframe: 6:08:43.543
SNR: 6.59
Radius: 21
Warning: Camera flip in area of interest

RFO2PC: horz-cam
Timeframe: 6:08:45.433 – 6:08:46.917
SNR: 5.34 – 5.57
Radius: 40 – 40.75

Event: 10/21/2022 6:09:05 AM UTC

RFO1PC: horz-cam
Timeframe: 6:09:05.197
SNR: 6.83
Radius: 39.75
Warning: Camera flip in area of interest

RFO1PC: vert-cam
Timeframe: 6:09:08.303 – 6:09:15.367
SNR: 7.29 – 11.21
Radius: 34.5 – 37.75

RFO1PC: vert-cam
Timeframe: 6:09:17.377
SNR: 5.95
Radius: 35

Event: 10/24/2022 5:44:21 AM UTC

RFO2PC: vert-cam
Timeframe: 5:44:21.353
SNR: 7.34
Radius: 21.75

RFO2PC: horz-cam
Timeframe: 5:44:24.633
SNR: 5.7
Radius: 40

Event: 10/24/2022 1:10:12 PM UTC

IFA1PC: vert-cam
Timeframe: 13:10:12.750
SNR: 8.35
Radius: 37
False positive: Camera flip at candidate

IFA1PC: horz-cam
Timeframe: 13:10:12.767
SNR: 6.48
Radius: 35.75
Warning: Camera flip in area of interest

Event: 10/25/2022 5:13:53 AM UTC

RFO1PC: horz-cam
Timeframe: 5:13:53.253
SNR: 7.25 – 8.56
Radius: 19.75 – 40.25
Warning: Camera flip in area of interest

RFO1PC: vert-cam
Timeframe: 5:13:55.987
SNR: 8.63
Radius: 37.5

Event: 10/25/2022 5:26:28 AM UTC

RFO1PC: horz-cam
Timeframe: 5:26:28.767 – 5:26:28.780
SNR: 6.49
Radius: 21.5

RFO1PC: vert-cam
Timeframe: 5:26:32.967 – 5:26:37.390
SNR: 9.35 – 11.55
Radius: 37.5 – 38

RFO1PC: vert-cam
Timeframe: 5:26:38.860
SNR: 10.69
Radius: 38.5

RFO1PC: horz-cam
Timeframe: 5:26:43.307 – 5:26:43.323
SNR: 7.09
Radius: 38.5

Event: 10/28/2022 5:16:32 AM UTC

RFO1PC: horz-cam
Timeframe: 5:16:34.990 – 5:16:39.387
SNR: 6.65 – 7.58
Radius: 37.5 – 41.25

RFO1PC: vert-cam
Timeframe: 5:16:40.663 – 5:16:40.677
SNR: 13.15
Radius: 38

Event: 10/28/2022 5:29:54 AM UTC

RFO1PC: vert-cam
Timeframe: 5:29:54.153
SNR: 8.58
Radius: 34.5

RFO1PC: horz-cam
Timeframe: 5:29:58.000 – 5:29:58.003
SNR: 11.59
Radius: 38

Event: 11/17/2022 3:26:38 AM UTC

RFO2PC: vert-cam
Timeframe: 3:26:38.050 – 3:26:39.417
SNR: 5.55 – 5.62
Radius: 21.75 – 42.75

RFO2PC: horz-cam
Timeframe: 3:26:38.280 – 3:26:41.217
SNR: 6.05 – 6.5
Radius: 39.25

RFO2PC: horz-cam
Timeframe: 3:26:44.157
SNR: 7.15
Radius: 41

Event: 11/17/2022 7:14:10 AM UTC

RFO1PC: horz-cam
Timeframe: 7:14:14.480
SNR: 7.46
Radius: 39.5
Warning: Camera flip in area of interest

RFO1PC: vert-cam
Timeframe: 7:14:17.283
SNR: 10.88
Radius: 37.75

RFO1PC: vert-cam
Timeframe: 7:14:21.747 – 7:14:24.727
SNR: 9.23 – 9.41
Radius: 37.5 – 38

Event: 12/17/2022 5:43:25 AM UTC

RFO1PC: horz-cam
Timeframe: 5:43:25.940
SNR: 6.54
Radius: 40.25
Warning: Camera flip in area of interest

RFO1PC: vert-cam
Timeframe: 5:43:30.157 – 5:43:33.067
SNR: 5.87 – 9.86
Radius: 35 – 37.75

RFO1PC: vert-cam
Timeframe: 5:43:37.547
SNR: 8.44
Radius: 38.25

Event: 1/20/2023 7:10:47 AM UTC

RFO1PC: vert-cam
Timeframe: 7:10:47.087
SNR: 16.39
Radius: 37.75

RFO2PC: vert-cam
Timeframe: 7:10:49.980
SNR: 6.65
Radius: 59

Event: 2/18/2023 5:09:00 AM UTC

RFO1PC: vert-cam
Timeframe: 5:09:00.983
SNR: 15.93
Radius: 37.75

RFO1PC: horz-cam
Timeframe: 5:09:02.450 – 5:09:05.363
SNR: 8.66 – 10.02
Radius: 38 – 39

Event: 2/21/2023 5:42:57 AM UTC

RFO1PC: horz-cam
Timeframe: 5:42:57.053
SNR: 7.8
Radius: 41.75

RFO1PC: horz-cam
Timeframe: 5:43:00.007 – 5:43:00.010
SNR: 7.99
Radius: 39.5

RFO1PC: vert-cam
Timeframe: 5:43:03.627
SNR: 5.78
Radius: 34.25

Event: 3/10/2023 5:44:27 AM UTC

IFA1PC: horz-cam
Timeframe: 5:44:27.837
SNR: 141.83
Radius: 0

IFA2PC: horz-cam
Timeframe: 5:44:28.283
SNR: 17.96
Radius: 0

Event: 4/21/2023 7:05:06 AM UTC

RFO1PC: horz-cam
Timeframe: 7:05:06.850
SNR: 5.99
Radius: 39.75

RFO1PC: vert-cam
Timeframe: 7:05:11.430 – 7:05:15.313
SNR: 10.35 – 16.41
Radius: 34.25

Event: 4/26/2023 5:43:45 AM UTC

RFO1PC: horz-cam
Timeframe: 5:43:45.877
SNR: 15.15
Radius: 39

RFO1PC: vert-cam
Timeframe: 5:43:49.653 – 5:43:50.933
SNR: 10.15 – 10.61
Radius: 34 – 34.75

Event: 5/17/2023 5:21:58 AM UTC

RFO1PC: horz-cam
Timeframe: 5:21:58.933 – 5:21:58.947
SNR: 6.33
Radius: 40.5

RFO1PC: vert-cam
Timeframe: 5:22:01.513 – 5:22:05.400
SNR: 6.96 – 11.73
Radius: 34.25 – 38
Warning: Camera flip in area of interest

Event: 6/15/2023 5:20:02 AM UTC

RFO1PC: horz-cam
Timeframe: 5:20:02.157
SNR: 6
Radius: 41.25

RFO1PC: vert-cam
Timeframe: 5:20:06.383 – 5:20:07.887
SNR: 10.44 – 10.52
Radius: 37.5

RFO1PC: vert-cam
Timeframe: 5:20:12.360 – 5:20:15.337
SNR: 8.58 – 14.35
Radius: 37.75 – 38

Event: 8/4/2023 5:23:43 AM UTC

RFO2PC: horz-cam
Timeframe: 5:23:43.313 – 5:23:43.327
SNR: 5.41
Radius: 19.25
Warning: Camera flip in area of interest

RFO2PC: vert-cam
Timeframe: 5:23:46.293
SNR: 5.15
Radius: 42.25

RFO2PC: horz-cam
Timeframe: 5:23:49.523
SNR: 5.19
Radius: 23
Warning: Camera flip in area of interest

Event: 9/9/2023 4:18:29 AM UTC

RFO1PC: horz-cam
Timeframe: 4:18:29.470 – 4:18:35.313
SNR: 6.87 – 7.21
Radius: 20.75 – 39.5
Warning: Camera flip in area of interest

RFO1PC: vert-cam
Timeframe: 4:18:39.470
SNR: 9.68
Radius: 37.5

RFO1PC: vert-cam
Timeframe: 4:18:42.427
SNR: 8.75
Radius: 37.5

Event: 9/14/2023 4:13:58 AM UTC

RFO1PC: vert-cam
Timeframe: 4:13:58.277
SNR: 34.1
Radius: 40.5

RFO1PC: horz-cam
Timeframe: 4:14:02.867
SNR: 10.69
Radius: 39.5

Event: 9/14/2023 5:13:24 AM UTC

RFO1PC: horz-cam
Timeframe: 5:13:24.910 – 5:13:26.387
SNR: 5.7 – 6.17
Radius: 20.5 – 22

RFO1PC: vert-cam
Timeframe: 5:13:30.687 – 5:13:30.700
SNR: 7.66
Radius: 38

Event: 9/22/2023 5:55:04 AM UTC

RFO2PC: horz-cam
Timeframe: 5:55:04.980
SNR: 8.69
Radius: 39.75

RFO2PC: vert-cam
Timeframe: 5:55:05.953
SNR: 6
Radius: 22

Event: 11/2/2023 10:03:48 AM UTC

RFO2PC: vert-cam
Timeframe: 10:03:48.437 – 10:03:50.583
SNR: 5.29 – 5.83
Radius: 21.25 – 22.75

RFO2PC: horz-cam
Timeframe: 10:03:50.373
SNR: 7.21
Radius: 34

Event: 11/12/2023 11:11:51 AM UTC

IFA2PC: horz-cam
Timeframe: 11:11:51.957
SNR: 14.33
Radius: 0

RFO1PC: vert-cam
Timeframe: 11:11:53.383
SNR: 6.61
Radius: 0.5

Event: 2/10/2024 11:30:21 AM UTC

RFO1PC: vert-cam
Timeframe: 11:30:21.060 – 11:30:25.233
SNR: 8.11 – 11.69
Radius: 37.75 – 38

RFO1PC: horz-cam
Timeframe: 11:30:23.993
SNR: 10.39
Radius: 38.25
Warning: Camera flip in area of interest

RFO1PC: vert-cam
Timeframe: 11:30:26.630 – 11:30:29.420
SNR: 9.39 – 10.94
Radius: 37.75 – 38.25

Event: 2/12/2024 7:39:18 AM UTC

IFA2PC: horz-cam
Timeframe: 7:39:18.440 – 7:39:23.130
SNR: 6.45 – 7.3
Radius: 38.25 – 38.75

IFA2PC: vert-cam
Timeframe: 7:39:22.617
SNR: 5.58
Radius: 38.25

Event: 2/13/2024 3:10:23 PM UTC

IFA1PC: vert-cam
Timeframe: 15:10:23.247
SNR: 8.65
Radius: 46.5

IFA2PC: vert-cam
Timeframe: 15:10:25.807
SNR: 11.96
Radius: 0

Event: 3/18/2024 5:21:19 AM UTC

IFA1PC: vert-cam
Timeframe: 5:21:19.360
SNR: 5.49
Radius: 27.75

IFA1PC: horz-cam
Timeframe: 5:21:22.483 – 5:21:22.487
SNR: 6.21
Radius: 20.5