View a Leap Second - WWVB - December 31, 1998

Below is a high resolution snapshot of the WWVB subcode during the leap second at the end of 1998.

From: Tom Van Baak <tvb veritas.com>
Subject: Leap Second, WWVB
Date: 1999/01/03
Message-ID: <368F6319.4F21@veritas.com>
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=us-ascii
Organization: VERITAS Software
Mime-Version: 1.0
Reply-To: tvb veritas.com
Newsgroups: comp.protocols.time.ntp


Following are two transcripts of WWVB during the leap
second. The first was made with the new UltraLink M320
(http://www.ulio.com/timepr.html) in diagnostic mode
with data logged on a PC running local time (PST).
'0' = zero bit, '1' = one bit, '2' = position marker.

1998-12-31.15:53/101000112001000011200110011000101000102001101001210000010022
1998-12-31.15:54/101001002001000011200110011020101000102001101001210000010012
1998-12-31.15:55/noise...
1998-12-31.15:58/101010002001000011200110011020101000102001101001210000010022
1998-12-31.15:59/1010100120010000112001100110201010001020011010012100000100222
1998-12-31.16:00/000000002000000000200000000020001001012011101001210010000022
1998-12-31.16:01/000000012000000000200000000020001001012011101001210010000022
1998-12-31.16:02/000000102000000000200000000020001001012011101001210010000022
1998-12-31.16:03/000000112000000000200000000020001001012011101001210010000022


The second transcript is the 1 Hz WWVB subcode received
with a laboratory receiver and synchronously decoded by
an A/D every 20 ms (50 samples per second, one line per
second). 'X' = full power, '-' = reduced power.

1998-12-31.23:58:59/X----------------------------------------XXXXXXXXX
1998-12-31.23:59:00/-----------------------------------------XXXXXXXXX
1998-12-31.23:59:01/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:02/X----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:03/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:04/X----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:05/X-------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:06/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:07/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:08/X-------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:09/-----------------------------------------XXXXXXXXX
1998-12-31.23:59:10/X----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:11/------------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:12/---------------------------XXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:13/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:14/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:15/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:16/X----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:17/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:18/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:19/-----------------------------------------XXXXXXXXX
1998-12-31.23:59:20/------------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:21/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:22/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:23/---------------------------XXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:24/------------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:25/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:26/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:27/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:28/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:29/-----------------------------------------XXXXXXXXX
1998-12-31.23:59:30/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:31/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:32/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:33/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:34/X----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:35/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:36/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:37/X-------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:38/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:39/-----------------------------------------XXXXXXXXX
1998-12-31.23:59:40/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:41/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:42/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:43/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:44/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:45/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:46/X----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:47/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:48/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:49/----------------------------------------XXXXXXXXXX
1998-12-31.23:59:50/-------------------------XXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:51/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:52/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:53/------------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:54/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:55/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:56/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:57/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:58/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1998-12-31.23:59:59/-----------------------------------------XXXXXXXXX
1998-12-31.23:59:60/-----------------------------------------XXXXXXXXX
1999-01-01.00:00:00/-----------------------------------------XXXXXXXXX
1999-01-01.00:00:01/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:02/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:03/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:04/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:05/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:06/-------------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:07/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:08/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:09/----------------------------------------XXXXXXXXXX
1999-01-01.00:00:10/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:11/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:12/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:13/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:14/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:15/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:16/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:17/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:18/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:19/-----------------------------------------XXXXXXXXX
1999-01-01.00:00:20/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:21/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:22/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:23/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:24/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:25/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:26/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:27/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:28/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:29/-----------------------------------------XXXXXXXXX
1999-01-01.00:00:30/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:31/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:32/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:33/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:34/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:35/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:36/---------------------------XXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:37/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:38/--------------------------XXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:39/----------------------------------------XXXXXXXXX-
1999-01-01.00:00:40/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:41/--------------------------XXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:42/--------------------------XXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:43/-------------------------XXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:44/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:45/---------------------------XXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:46/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:47/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:48/--------------------------XXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:49/-----------------------------------------XXXXXXXXX
1999-01-01.00:00:50/-------------------------XXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:51/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:52/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:53/-------------------------XXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:54/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:55/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:56/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:57/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:00:58/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:00:59/------------------------------------------XXXXXXX-
1999-01-01.00:01:00/-----------------------------------------XXXXXXXX-
1999-01-01.00:01:01/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:02/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:03/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:04/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-XXXX-
1999-01-01.00:01:05/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:06/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:07/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:01:08/--------------------------XXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:09/------------------------------------------XXXXXXXX
1999-01-01.00:01:10/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:01:11/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:01:12/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:13/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:14/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:01:15/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:01:16/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:01:17/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:18/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:19/-----------------------------------------XXXXXXXX-
1999-01-01.00:01:20/----------XXXXXXXXXXXXXXXXXXXXXX-XXXXXXXXXXXXXXXX-
1999-01-01.00:01:21/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:22/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:23/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:24/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:25/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:26/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:01:27/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:28/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:29/-----------------------------------------XXXXXXXX-
1999-01-01.00:01:30/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:31/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:32/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:33/--------------------------XXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:34/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:35/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:36/-------------------------XXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:37/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:38/--------------------------XXX-XXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:39/----------------------------------------XXXXXXXXX-
1999-01-01.00:01:40/-----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:41/-------------------------XXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:42/-------------------------XXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:43/-------------------------XXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:44/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1999-01-01.00:01:45/-------------------------XXXXXXXXXXXXXXXXXXXXXXX--
1999-01-01.00:01:46/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:47/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:48/-------------------------XXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:49/----------------------------------------XXXXXXXXX-
1999-01-01.00:01:50/-------------------------XXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:51/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:52/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:53/------------------------XXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:54/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:55/---------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:56/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:57/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:58/----------XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-
1999-01-01.00:01:59/---------------------------------------XXXXXXXXX--
1999-01-01.00:02:00/----------------------------------------XXXXXXXXX-

The above was an old posting of mine found in the Google Usenet archives.


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