==================================== apsg52 ==================================== Ho : Late start 23:32. Cooling receiver. Halted (01:30-02:20) to investigate LO unlock. Kg : Not tracking (18:00-22:11). Windstow (04:18-04:34) (05:54-06:14) (06:50-06:57). Sh : Did not participate. Yg : Did not participate. No problems found for : Is, Kk, Kv No information for : Ur ================================ apsg52ho START ================================ 2023-02-08 18:12:16 apsg52, Hobart26 (Ho), start message Session apsg52 start message for Hobart26 (Ho) ----------------------------------------------------------- Started recording with source: - at - UT Comments: Experiment start delayed because the receiver required cooling Regards, Pradyumna ================================ apsg52ho STOP ================================= 2023-02-09 19:19:39 Hobart26 has completed apsg52 Hobart26 has completed apsg52 The log and procedure files from experiment apsg52 have been copied to ivs.bkg.bund.de: Formatter (H-maser) leads GPS by 8.41 at 2023.040.17:58:35.04#fmout# Additional experiment notes: Recorded 4572.93 GB to module HOB+0131 using the Mark5B+ recorder. The Module is being sent to Hobart for e-transfer to SHAO. Known problems: Yes, experiment start delayed due to reciever cooling issues. Experiment started at 23:32UT. At 01:30UT the LO became unlocked, this was resolved by 02:20UT. Missed Scans: Scans prior to 23:32UT were missed. Scans between 01:30UT and 02:20UT were missed. Observers: Prad, Jamie, Jasper. Regards, Jasper Comments from the log: 2023.039.23:34:09.22;"S/X receiver on axis. 2023.039.23:36:13.22;"4.8 GHz receiver on axis. 2023.039.23:39:16.19;"S/X receiver on axis. 2023.039.23:42:13.19;"S/X receiver on axis. 2023.039.23:44:23.21;"ERROR: No receiver on axis! 2023.039.23:51:10.19;"S/X receiver on axis. 2023.039.23:55:57.19;"S/X receiver on axis. 2023.039.23:58:30.19;"S/X receiver on axis. 2023.040.00:01:59.20;"S/X receiver on axis. 2023.040.00:04:30.19;"4.8 GHz receiver on axis. 2023.040.00:07:38.21;"4.8 GHz receiver on axis. 2023.040.00:10:52.35;"S/X receiver on axis. 2023.040.00:13:49.20;"4.8 GHz receiver on axis. 2023.040.00:17:55.18;"S/X receiver on axis. 2023.040.00:20:31.20;"S/X receiver on axis. 2023.040.00:22:35.24;"S/X receiver on axis. 2023.040.00:25:41.24;"4.8 GHz receiver on axis. 2023.040.00:31:16.21;"S/X receiver on axis. 2023.040.00:36:30.24;"ERROR: No receiver on axis! 2023.040.00:38:54.20;"4.8 GHz receiver on axis. 2023.040.00:41:32.20;"S/X receiver on axis. 2023.040.00:46:39.19;"S/X receiver on axis. 2023.040.00:48:41.19;"4.8 GHz receiver on axis. 2023.040.00:53:20.23;"4.8 GHz receiver on axis. 2023.040.00:55:34.22;"S/X receiver on axis. 2023.040.01:00:01.20;"S/X receiver on axis. 2023.040.01:02:32.21;"S/X receiver on axis. 2023.040.01:12:12.36;"S/X receiver on axis. 2023.040.01:17:33.20;"4.8 GHz receiver on axis. 2023.040.01:20:02.21;"4.8 GHz receiver on axis. 2023.040.01:22:57.25;"S/X receiver on axis. 2023.040.01:28:00.20;"S/X receiver on axis. 2023.040.01:30:30.19;"4.8 GHz receiver on axis. 2023.040.01:38:42.11;"Rxmon reports LO unlocked! 2023.040.02:21:57.74;"4.8 GHz receiver on axis. 2023.040.02:23:56.02;"S/X receiver on axis. 2023.040.02:27:58.19;"4.8 GHz receiver on axis. 2023.040.02:30:58.20;"S/X receiver on axis. 2023.040.02:34:01.19;"S/X receiver on axis. 2023.040.02:42:13.18;"S/X receiver on axis. 2023.040.02:48:29.22;"4.8 GHz receiver on axis. 2023.040.02:51:01.22;"4.8 GHz receiver on axis. 2023.040.02:53:01.19;"S/X receiver on axis. 2023.040.02:56:28.20;"S/X receiver on axis. 2023.040.02:59:38.22;"S/X receiver on axis. 2023.040.03:02:53.20;"S/X receiver on axis. 2023.040.03:06:23.20;"S/X receiver on axis. 2023.040.03:09:31.20;"S/X receiver on axis. 2023.040.03:17:05.24;"ERROR: No receiver on axis! 2023.040.03:19:31.20;"4.8 GHz receiver on axis. 2023.040.03:23:32.26;"S/X receiver on axis. 2023.040.03:26:03.20;"S/X receiver on axis. 2023.040.03:29:56.21;"4.8 GHz receiver on axis. 2023.040.03:37:22.21;"ERROR: No receiver on axis! 2023.040.03:45:21.20;"S/X receiver on axis. 2023.040.03:53:37.21;"ERROR: No receiver on axis! 2023.040.03:56:44.20;"S/X receiver on axis. 2023.040.04:02:12.21;"S/X receiver on axis. 2023.040.04:04:48.20;"S/X receiver on axis. 2023.040.04:12:55.27;"4.8 GHz receiver on axis. 2023.040.04:16:47.20;"S/X receiver on axis. 2023.040.04:19:21.19;"S/X receiver on axis. 2023.040.04:23:49.26;"S/X receiver on axis. 2023.040.04:28:02.21;"S/X receiver on axis. 2023.040.04:32:14.19;"S/X receiver on axis. 2023.040.04:39:07.20;"4.8 GHz receiver on axis. 2023.040.04:43:25.21;"S/X receiver on axis. 2023.040.04:45:59.21;"4.8 GHz receiver on axis. 2023.040.04:48:06.19;"S/X receiver on axis. 2023.040.04:52:16.21;"S/X receiver on axis. 2023.040.04:55:53.20;"4.8 GHz receiver on axis. 2023.040.04:58:46.21;"4.8 GHz receiver on axis. 2023.040.05:09:23.20;"4.8 GHz receiver on axis. 2023.040.05:21:37.76;"S/X receiver on axis. 2023.040.05:27:01.20;"S/X receiver on axis. 2023.040.05:29:32.20;"S/X receiver on axis. 2023.040.05:36:45.23;"S/X receiver on axis. 2023.040.05:41:00.22;"S/X receiver on axis. 2023.040.05:45:14.22;"ERROR: No receiver on axis! 2023.040.05:51:33.21;"4.8 GHz receiver on axis. 2023.040.05:53:56.23;"S/X receiver on axis. 2023.040.05:58:44.20;"S/X receiver on axis. 2023.040.06:05:36.19;"S/X receiver on axis. 2023.040.06:12:11.32;"ERROR: No receiver on axis! 2023.040.06:14:50.20;"S/X receiver on axis. 2023.040.06:19:17.20;"S/X receiver on axis. 2023.040.06:27:01.25;"S/X receiver on axis. 2023.040.06:34:40.24;"S/X receiver on axis. 2023.040.06:41:26.21;"S/X receiver on axis. 2023.040.06:43:57.20;"S/X receiver on axis. 2023.040.06:52:32.20;"4.8 GHz receiver on axis. 2023.040.06:54:37.19;"4.8 GHz receiver on axis. 2023.040.06:57:51.20;"S/X receiver on axis. 2023.040.07:04:37.20;"4.8 GHz receiver on axis. 2023.040.07:16:51.26;"S/X receiver on axis. 2023.040.07:26:42.34;"ERROR: No receiver on axis! 2023.040.07:35:01.20;"S/X receiver on axis. 2023.040.07:40:24.22;"ERROR: No receiver on axis! 2023.040.07:45:21.21;"4.8 GHz receiver on axis. 2023.040.07:47:35.20;"S/X receiver on axis. 2023.040.07:56:35.20;"S/X receiver on axis. 2023.040.08:03:24.19;"S/X receiver on axis. 2023.040.08:08:33.21;"4.8 GHz receiver on axis. 2023.040.08:13:17.28;"4.8 GHz receiver on axis. 2023.040.08:19:06.20;"S/X receiver on axis. 2023.040.08:21:10.42;"4.8 GHz receiver on axis. 2023.040.08:30:46.21;"S/X receiver on axis. 2023.040.08:37:19.20;"S/X receiver on axis. 2023.040.08:42:10.19;"S/X receiver on axis. 2023.040.08:46:46.20;"4.8 GHz receiver on axis. 2023.040.08:52:30.20;"S/X receiver on axis. 2023.040.08:54:30.21;"S/X receiver on axis. 2023.040.09:04:38.21;"S/X receiver on axis. 2023.040.09:17:27.30;"S/X receiver on axis. 2023.040.09:23:43.28;"4.8 GHz receiver on axis. 2023.040.09:28:54.20;"S/X receiver on axis. 2023.040.09:37:47.20;"4.8 GHz receiver on axis. 2023.040.09:46:00.19;"S/X receiver on axis. 2023.040.09:48:32.20;"S/X receiver on axis. 2023.040.09:53:55.20;"4.8 GHz receiver on axis. 2023.040.09:59:07.23;"S/X receiver on axis. 2023.040.10:02:01.21;"ERROR: No receiver on axis! 2023.040.10:09:05.23;"S/X receiver on axis. 2023.040.10:17:21.24;"4.8 GHz receiver on axis. 2023.040.10:19:52.20;"S/X receiver on axis. 2023.040.10:22:05.31;"S/X receiver on axis. 2023.040.10:24:31.19;"S/X receiver on axis. 2023.040.10:28:39.22;"ERROR: No receiver on axis! 2023.040.10:30:42.20;"S/X receiver on axis. 2023.040.10:38:07.23;"4.8 GHz receiver on axis. 2023.040.10:40:50.21;"S/X receiver on axis. 2023.040.10:49:01.22;"S/X receiver on axis. 2023.040.10:53:28.18;"S/X receiver on axis. 2023.040.11:00:15.20;"4.8 GHz receiver on axis. 2023.040.11:12:47.31;"S/X receiver on axis. 2023.040.11:21:00.54;"S/X receiver on axis. 2023.040.11:27:24.20;"S/X receiver on axis. 2023.040.11:30:04.19;"S/X receiver on axis. 2023.040.11:33:34.20;"4.8 GHz receiver on axis. 2023.040.11:36:18.22;"S/X receiver on axis. 2023.040.11:38:19.20;"4.8 GHz receiver on axis. 2023.040.11:45:01.19;"S/X receiver on axis. 2023.040.11:55:12.21;"ERROR: No receiver on axis! 2023.040.12:01:36.21;"4.8 GHz receiver on axis. 2023.040.12:10:39.27;"S/X receiver on axis. 2023.040.12:17:36.21;"ERROR: No receiver on axis! 2023.040.12:24:48.31;"ERROR: No receiver on axis! 2023.040.12:31:12.19;"S/X receiver on axis. 2023.040.12:34:35.20;"S/X receiver on axis. 2023.040.12:40:18.20;"S/X receiver on axis. 2023.040.12:42:58.21;"S/X receiver on axis. 2023.040.12:45:17.23;"4.8 GHz receiver on axis. 2023.040.12:53:07.23;"S/X receiver on axis. 2023.040.12:59:32.21;"S/X receiver on axis. 2023.040.13:02:06.21;"4.8 GHz receiver on axis. 2023.040.13:04:18.21;"S/X receiver on axis. 2023.040.13:08:10.20;"S/X receiver on axis. 2023.040.13:17:44.27;"4.8 GHz receiver on axis. 2023.040.13:25:33.30;"4.8 GHz receiver on axis. 2023.040.13:32:00.20;"S/X receiver on axis. 2023.040.13:34:30.24;"4.8 GHz receiver on axis. 2023.040.13:39:35.20;"S/X receiver on axis. 2023.040.13:47:56.20;"S/X receiver on axis. 2023.040.13:56:21.20;"S/X receiver on axis. 2023.040.13:58:19.24;"S/X receiver on axis. 2023.040.14:01:03.19;"S/X receiver on axis. 2023.040.14:07:11.20;"S/X receiver on axis. 2023.040.14:12:19.28;"S/X receiver on axis. 2023.040.14:22:16.33;"S/X receiver on axis. 2023.040.14:31:55.20;"S/X receiver on axis. 2023.040.14:36:54.20;"S/X receiver on axis. 2023.040.14:39:58.22;"S/X receiver on axis. 2023.040.14:45:35.20;"4.8 GHz receiver on axis. 2023.040.14:49:10.20;"S/X receiver on axis. 2023.040.14:52:00.19;"S/X receiver on axis. 2023.040.15:00:25.21;"ERROR: No receiver on axis! 2023.040.15:05:19.20;"S/X receiver on axis. 2023.040.15:09:28.22;"ERROR: No receiver on axis! 2023.040.15:13:23.25;"ERROR: No receiver on axis! 2023.040.15:15:35.20;"4.8 GHz receiver on axis. 2023.040.15:18:01.23;"S/X receiver on axis. 2023.040.15:24:54.29;"S/X receiver on axis. 2023.040.15:33:00.20;"S/X receiver on axis. 2023.040.15:38:17.21;"4.8 GHz receiver on axis. 2023.040.15:40:30.25;"4.8 GHz receiver on axis. 2023.040.15:43:03.23;"S/X receiver on axis. 2023.040.15:52:14.19;"S/X receiver on axis. 2023.040.15:56:39.19;"S/X receiver on axis. 2023.040.16:01:06.21;"ERROR: No receiver on axis! 2023.040.16:06:03.25;"4.8 GHz receiver on axis. 2023.040.16:09:50.20;"S/X receiver on axis. 2023.040.16:13:20.22;"S/X receiver on axis. 2023.040.16:21:02.51;"S/X receiver on axis. 2023.040.16:25:34.21;"S/X receiver on axis. 2023.040.16:32:40.20;"S/X receiver on axis. 2023.040.16:35:19.22;"4.8 GHz receiver on axis. 2023.040.16:38:16.19;"S/X receiver on axis. 2023.040.16:40:38.21;"4.8 GHz receiver on axis. 2023.040.16:44:19.23;"4.8 GHz receiver on axis. 2023.040.16:52:05.21;"S/X receiver on axis. 2023.040.16:56:45.21;"S/X receiver on axis. 2023.040.17:03:52.19;"S/X receiver on axis. 2023.040.17:07:38.20;"4.8 GHz receiver on axis. 2023.040.17:10:18.20;"S/X receiver on axis. 2023.040.17:13:52.25;"ERROR: No receiver on axis! 2023.040.17:26:16.31;"4.8 GHz receiver on axis. 2023.040.17:32:49.19;"S/X receiver on axis. 2023.040.17:36:56.23;"ERROR: No receiver on axis! 2023.040.17:39:20.23;"S/X receiver on axis. 2023.040.17:42:54.24;"S/X receiver on axis. 2023.040.17:46:32.20;"S/X receiver on axis. 2023.040.17:49:10.21;"S/X receiver on axis. 2023.040.17:57:14.21;"S/X receiver on axis. 2023.040.17:59:25.23;"S/X receiver on axis. ================================ apsg52is READY ================================ 2023-02-06 06:27:33 q23037, r11089, t2159, apsg52, r41089, q23042 and q23043, Ishioka, Ready-message Ishioka is ready for q23037, r11089, t2159, apsg52, r41089, q23042 and q23043. First source of q23037 is 0814+425 at 037day 07:00:00(UT). First source of r11089 is 1124-186 at 037day 17:00:00(UT). First source of t2159 is 0059+581 at 038day 17:30:00(UT). First source of apsg52 is 1149-084 at 039day 18:00:00(UT). First source of r41089 is 0814+425 at 040day 18:30:00(UT). First source of q23042 is 0059+581 at 042day 07:30:00(UT). First source of q23043 is 0202+319 at 043day 07:30:00(UT). Comments: All scans were recorded. At Ishioka, we adjusted Hydrogen Maser's standard output signal offset on January 31, 2023. And we changed the GPS receiver to the spare one on the same day, so peculiar offsets may be changed slightly compared to previous S/X sessions. R41088 on February 2 will be the first session since these values were adjusted. The data recorder is K5/VSI system. All systems are normal. Weather is fine Temp:13.2 C, Hum:39.6 %, Pres:1003.8 hPa FMOUT - GPS = +589.4 nsec at 037-06:22 Tsys: X-band=37.2 K, S-band=169.4 K (EL=90) SEFD: X-band=1270.3 Jy, S-band=1905.5 Jy (Cas-A, AZ=337.0, EL=64.0) About q23037 data transfer, Correlator is BONN. data server(GSI) -> iserv02 data directory(m5b) -> /ddn/vlbi/data/q23037is/m5b We will inform BONN, when the data is ready. About r11089 data transfer, Correlator is BONN. data server(GSI) -> iserv02 data directory(m5b) -> /ddn/vlbi/data/r11089is/m5b We will inform BONN, when the data is ready. About t2159 data transfer, Correlator is BONN. data server(GSI) -> iserv02 data directory(m5b) -> /ddn/vlbi/data/t2159is/m5b We will inform BONN, when the data is ready. About apsg52 data transfer, Correlator is SHAO. data server(GSI) -> iserv02 data directory(m5b) -> /ddn/vlbi/data/apsg52is/m5b We will inform SHAO, when the data is ready. About r41089 data transfer, Correlator is WASH. data server(GSI) -> iserv02 data directory(m5b) -> /ddn/vlbi/data/r41089is/m5b We will inform WASH, when the data is ready. About q23042 data transfer, Correlator is GSI. data server(GSI) -> beppu data directory(k5) -> /Extend/vlbi/data/q23042is About q23043 data transfer, Correlator is GSI. data server(GSI) -> beppu data directory(k5) -> /Extend/vlbi/data/q23043is Sincerely, Kentaro Nozawa, GSI/AES =================================================== GSI VLBI group Geospatial Information Authority of Japan web: https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.spacegeodesy.go.jp%2Fvlbi%2Fen%2F&data=05%7C01%7Civs-ops%40lists.nasa.gov%7C7968ed6435ca4517286408db080ca979%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C638112622714759525%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=8pG97fsIwCCthWG%2F51wUJoqq%2BPjmwrDQMNonMl3zvvQ%3D&reserved=0 =================================================== ================================ apsg52is START ================================ 2023-02-08 18:00:44 apsg52, Ishioka, Start-message Session apsg52 start message for Ishioka ---------------------------------------------------------------- Started recording with source 1149-084 at 2023/039/18:00:00UT FMOUT-GPS : +0.596 microseconds Wx: Temperature(C): 1.9 Pressure(hPa): 1007.2 Humidity(%): 95.6 ================================ apsg52is STOP ================================= 2023-02-10 01:51:22 apsg52, Ishioka, Stop-message Ishioka finished apsg52. Comments: All scans were recorded. --- Automatic measurement results at about 040-17:58 --- Temp: 0.4 C, Hum:66.8 %, Pres:1014.4 hPa FMOUT - GPS = +595.1 nsec at 040-17:58 (UT). Tsys: X-band=39.3 K, S-band=244.9 K (EL=90) SEFD: X-band=1379.1 Jy, S-band=2541.4 Jy (Virgo-A, AZ=187.6, EL=65.9) We put the file "apsg52is.log" on "cddis.gsfc.nasa.gov". Sincerely, Kentaro Nozawa, GSI/AES =================================================== GSI VLBI group Geospatial Information Authority of Japan web: https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.spacegeodesy.go.jp%2Fvlbi%2Fen%2F&data=05%7C01%7Civs-ops%40lists.nasa.gov%7C22e11a2acb6248574b8308db0b0ac7e0%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C638115913195350977%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=NGdW4cLHAsvTdWPWtvUzKnVk2H3NCFyIqXZRvIp%2Byy8%3D&reserved=0 =================================================== ================================ apsg52kg READY ================================ 2023-02-07 11:35:57 apsg52, Koganei11, ready/start message Dear colleagues, Koganei11 is ready for APSG52 session. The observation will start automoatically following to T2159 session. GPS-fmout clock offset is 0.33 us for Koganei11 at 2023.038.10:40:59.000 UT. Temp: 10.8 C, Pressure: 1007.3 hPa, Humid: 84.8 % for Koganei11 on 2023.038.10:41:00.000 UT . Koganei11 SEFD(Jy) X/S Source Az/El Az off/El off Tsys(X/S) 5254/12403 Cas-A 320.8/39.36 -0.0036/-0.0048 117/181 Please note that ------------------------------ The measurement data (Tsys/SEFD) of S-band does not represent real receiver performance, unfortunately. Because the S-band receiver is saturated by strong RFI comes from mobile-phone base stations. X-band is working normally. ------------------------------------- Best regards, Mamoru Sekido NICT/Koganei ================================ apsg52kg START ================================ 2023-02-07 11:35:57 apsg52, Koganei11, ready/start message Dear colleagues, Koganei11 is ready for APSG52 session. The observation will start automoatically following to T2159 session. GPS-fmout clock offset is 0.33 us for Koganei11 at 2023.038.10:40:59.000 UT. Temp: 10.8 C, Pressure: 1007.3 hPa, Humid: 84.8 % for Koganei11 on 2023.038.10:41:00.000 UT . Koganei11 SEFD(Jy) X/S Source Az/El Az off/El off Tsys(X/S) 5254/12403 Cas-A 320.8/39.36 -0.0036/-0.0048 117/181 Please note that ------------------------------ The measurement data (Tsys/SEFD) of S-band does not represent real receiver performance, unfortunately. Because the S-band receiver is saturated by strong RFI comes from mobile-phone base stations. X-band is working normally. ------------------------------------- Best regards, Mamoru Sekido NICT/Koganei ================================ apsg52kg STOP ================================= 2023-02-10 00:41:45 apsg52, Koganei11, Stop message Dear Colleagues, We have finished observations of apsg52 session at Koganei11. Unfortunately, the first about 4 hours of observations were lost. Cause of the problem was as follows: The IVS sessions of T2159 and APSG52 was almost continuously perfromed. Since the start/stop time was midnight in local time, I have set up procedure and snap files to swich over from t2159 and apsg52 sessions. But, there was a mistake in a script to start APSG52 session automatically. That should be "schedule=apsg52kg,#1", but I mistyped as "schedule=apsg52kg.#1" Then, antenna was not tracking source until 039doy 22 UT, when I found the trouble. I am very sorry about that. The data shoule be valid after 2023.039.22:06:15 UTC. There were no paticular known problem after that. The observation log file was uploaded to the server, depot.cddis.eosdis.nasa.gov. Best regards, Mamoru Sekido NICT/Koganei ================================ apsg52kk START ================================ 2023-02-08 18:00:00 apsg52, Kokee Park 20m, Autostart-message Session apsg52 auto-start message for Kokee Park 20m. ----------------------------------------------------- Started recording with source: 1149-084 at 039.18:00:00 UT ================================ apsg52kk STOP ================================= 2023-02-09 18:02:59 apsg52, Kokee Park 20m, Stop-message Session apsg52 stop message for Kokee Park 20m. ----------------------------------------------- Comments: No post pointing check dine due to short turnaround. All scans recorded with no known problems. Data will be sent out on Disk# GSFC+031 via FedEx AWB# 7712 5479 7250 Observation finished at: 040/1759:14 UT ================================ apsg52kv READY ================================ 2023-02-08 17:50:06 apsg52, Sejong, Ready-message First source of apsg52 : 1149-084 at 039/18:00:00 for 68 second (UT) FMOUT-GPS: -18.7 usec Wx: Temperature (C) -0.5 Pressure (hPa) 1001.5 Humidity (%) 64.2 Point values SEFD S/X1/X2 AZ/EL Source Offset1 Offset2 3500/1000/979 5/67 cas-a 0 +0.08 ================================ apsg52kv START ================================ 2023-02-08 22:40:33 APSG52, Sejong, Start-message Session APSG52 start-message for Sejong(Kv) Started recording with source 1149-084 at 039/18:00:00 (UT) ================================ apsg52kv STOP ================================= 2023-02-09 20:48:46 APSG52, Sejong, Stop-message Sejong finished APSG52. FMOUT-GPS: -18.7usec ================================================================================