Celebrity Equinox — 9HXD9 — position and weather

sailwx.info

Track history (hours):
 
Tides and Currents Weather Stations Pressure Air Temp Water Temp Dewpoint Dewpoint Depression Visibility Wind Speed Wind Dir Waves Ship Positions

Celebrity Equinox

Last reported at 2016-Aug-25 17:31 UTC. Time now 2016-Aug-25 18:32 UTC.
Position N 37°56' E 023°37'.

Length 317 m; draft 8.6 m.

Type: Passenger vessel. MMSI: 249667000.

Date/timePositionNaut miles runAvg speedWind from/ knotsBaromVisibWave heightAir tempDewpointWater temp
2016-Aug-25 17:31N 37°56' E 023°37'0 0.0
2016-Aug-25 16:33N 37°56' E 023°37'0 0.0
2016-Aug-25 15:33N 37°56' E 023°37'0 0.0
2016-Aug-25 14:32N 37°56' E 023°37'0 0.0
2016-Aug-25 13:32N 37°56' E 023°37'0 0.0
2016-Aug-25 12:32N 37°56' E 023°37'3 4.7
2016-Aug-25 12:00N 37°54' E 023°36'3 5.3 050 / 221008.0 5.4 1.028.3 29.2
2016-Aug-25 11:31N 37°56' E 023°37'0 0.0
2016-Aug-25 10:31N 37°56' E 023°37'0 0.0
2016-Aug-25 09:33N 37°56' E 023°37'0 0.0
2016-Aug-25 08:33N 37°56' E 023°37'0 0.0
2016-Aug-25 07:32N 37°56' E 023°37'0 0.0
2016-Aug-25 06:32N 37°56' E 023°37'0 0.0
2016-Aug-25 04:31N 37°56' E 023°37'0 0.0
2016-Aug-25 03:31N 37°56' E 023°37'0 0.0
2016-Aug-25 02:33N 37°56' E 023°37'0 0.0
2016-Aug-25 01:33N 37°56' E 023°37'0 0.0
2016-Aug-25 00:32N 37°56' E 023°37'1 0.9
2016-Aug-24 23:34N 37°56' E 023°37'1414.3
2016-Aug-24 22:33N 37°43' E 023°44'5919.3
2016-Aug-24 19:30N 37°32' E 024°58'1718.5
2016-Aug-24 18:33N 37°28' E 025°19'0 0.2
2016-Aug-24 17:33N 37°28' E 025°19'0 0.0
2016-Aug-24 16:32N 37°28' E 025°19'0 0.0
2016-Aug-24 15:32N 37°28' E 025°19'0 0.0
2016-Aug-24 14:31N 37°28' E 025°19'1 1.0
2016-Aug-24 13:33N 37°27' E 025°19'0 0.1
2016-Aug-24 12:33N 37°27' E 025°19'0 0.1
2016-Aug-24 11:32N 37°27' E 025°19'0 0.1
2016-Aug-24 10:32N 37°27' E 025°19'0 0.0
2016-Aug-24 09:29N 37°27' E 025°19'0 0.0
2016-Aug-24 08:28N 37°27' E 025°19'0 0.1
2016-Aug-24 07:33N 37°27' E 025°19'4 4.1
2016-Aug-24 06:34N 37°28' E 025°14'14 7.1
2016-Aug-24 04:34N 37°21' E 025°29'1312.6
2016-Aug-24 03:32N 37°21' E 025°46'4 6.5
2016-Aug-24 03:00N 37°18' E 025°48'3611.8 350 / 351005.0 5.4 1.020.0 26.0
2016-Aug-24 00:00N 37°06' E 026°30'37 1.9 010 / 291005.0 5.4 25.7 26.5
2016-Aug-23 04:00N 36°42' E 027°06'8710.9 290 / 151006.010.8 1.024.0 27.0
2016-Aug-22 20:00N 36°12' E 025°24'12 1.1 290 / 121008.0 5.4 0.525.0 27.4
2016-Aug-22 09:00N 36°24' E 025°24'4910.3 310 / 131010.0 5.4 0.526.0 27.1
2016-Aug-22 04:12N 36°24' E 024°23'1117.6
2016-Aug-22 03:33N 36°24' E 024°09'1717.4
2016-Aug-22 02:33N 36°24' E 023°47'1818.2
2016-Aug-22 01:33N 36°23' E 023°25'3018.9
2016-Aug-22 00:00N 36°24' E 022°48'6315.8 320 / 61010.010.8 0.525.0 28.4
2016-Aug-21 20:00N 36°30' E 021°30'16918.7 320 / 181011.010.8 1.025.0 28.7
2016-Aug-21 11:00N 37°12' E 018°06'12619.6 340 / 91012.0 2.2 22.0 28.6
2016-Aug-21 04:33N 37°54' E 015°36'1716.8
2016-Aug-21 03:33N 38°11' E 015°36'1413.6
2016-Aug-21 02:33N 38°25' E 015°37'1527.1
2016-Aug-21 02:00N 38°36' E 015°24'410.0 100 / 101012.010.8 0.523.5 27.0
2016-Aug-21 01:33N 38°39' E 015°27'1817.3
2016-Aug-21 00:32N 38°55' E 015°18'1221.2
2016-Aug-21 00:00N 39°06' E 015°12'512.3 320 / 21012.0 2.2 20.0 28.0
2016-Aug-20 23:33N 39°11' E 015°09'4316.6
2016-Aug-20 21:00N 39°48' E 014°42'4617.9 300 / 51013.0 5.4 0.524.0 28.0
2016-Aug-20 18:25N 40°30' E 014°18'1517.1
2016-Aug-20 17:34N 40°45' E 014°17'5 1.3
2016-Aug-20 13:31N 40°50' E 014°16'0 0.0
2016-Aug-20 12:33N 40°50' E 014°16'0 0.0
2016-Aug-20 11:33N 40°50' E 014°16'0 0.0
2016-Aug-20 04:33N 40°50' E 014°16'7 7.4
2016-Aug-20 03:33N 40°43' E 014°14'1615.9
2016-Aug-20 02:34N 40°28' E 014°07'1120.3
2016-Aug-20 02:00N 40°18' E 014°00'612.9 040 / 101011.010.8 0.524.0 28.0
2016-Aug-20 01:34N 40°13' E 014°02'1616.0
2016-Aug-20 00:34N 39°57' E 013°59'2216.2
2016-Aug-19 23:12N 39°36' E 013°52'1015.8
2016-Aug-19 22:34N 39°26' E 013°48'2035.9
2016-Aug-19 22:00N 39°06' E 013°42'4 9.7 170 / 51012.0 5.4 0.525.0 28.6
2016-Aug-19 21:33N 39°10' E 013°44'1616.6
2016-Aug-19 20:34N 38°54' E 013°39'1616.4
2016-Aug-19 19:33N 38°38' E 013°34'1616.3
2016-Aug-19 18:33N 38°22' E 013°29'1212.1
2016-Aug-19 17:33N 38°11' E 013°25'4 3.6
2016-Aug-19 16:33N 38°07' E 013°23'1 0.8
2016-Aug-19 15:32N 38°08' E 013°22'0 0.0
2016-Aug-19 14:31N 38°08' E 013°22'0 0.0
2016-Aug-19 13:31N 38°08' E 013°22'0 0.0
2016-Aug-19 12:33N 38°08' E 013°22'711.7
2016-Aug-19 12:00N 38°06' E 013°30'714.9 080 / 81011.010.8 0.526.3 26.6
2016-Aug-19 11:33N 38°08' E 013°22'0 0.0
2016-Aug-19 10:32N 38°08' E 013°22'3 6.3
2016-Aug-19 10:00N 38°06' E 013°18'3 7.6 999 / 61011.0 5.4 0.526.0 26.0
2016-Aug-19 09:32N 38°08' E 013°22'0 0.0
2016-Aug-19 08:32N 38°08' E 013°22'0 0.1
2016-Aug-19 07:33N 38°08' E 013°22'7 7.4
2016-Aug-19 06:33N 38°15' E 013°24'1716.9
2016-Aug-19 05:33N 38°32' E 013°22'6019.3
2016-Aug-19 02:26N 39°29' E 012°58'3 6.8
2016-Aug-19 02:00N 39°30' E 012°54'10320.5 270 / 51009.010.8 0.524.0 27.0
2016-Aug-18 21:00N 41°06' E 012°06'63 7.0 250 / 81009.0 5.4 1.023.0 27.1
2016-Aug-18 12:00N 42°06' E 011°42'0 0.0 350 / 61008.010.8 27.6 25.3
2016-Aug-18 09:00N 42°06' E 011°42'61 6.3 170 / 121008.0 5.4 0.527.0 25.1
2016-Aug-17 23:12N 42°30' E 010°26'1014.9
2016-Aug-17 22:33N 42°36' E 010°15'3213.8
2016-Aug-17 20:13N 43°07' E 010°04'1015.2
2016-Aug-17 19:33N 43°16' E 010°09'1515.0
2016-Aug-17 18:33N 43°31' E 010°14'4 3.7
2016-Aug-17 17:32N 43°33' E 010°18'0 0.0
2016-Aug-17 16:32N 43°33' E 010°18'0 0.0
2016-Aug-17 15:31N 43°33' E 010°18'0 0.0
2016-Aug-17 14:28N 43°33' E 010°18'0 0.0
2016-Aug-17 13:30N 43°33' E 010°18'0 0.0
2016-Aug-17 12:33N 43°33' E 010°18'0 0.0
2016-Aug-17 10:08N 43°33' E 010°18'0 0.0
2016-Aug-17 09:31N 43°33' E 010°18'0 0.0
2016-Aug-17 08:31N 43°33' E 010°18'0 0.0
2016-Aug-17 07:31N 43°33' E 010°18'0 0.0
2016-Aug-17 06:33N 43°33' E 010°18'0 0.0
2016-Aug-17 05:33N 43°33' E 010°18'1 1.4
2016-Aug-17 04:33N 43°32' E 010°17'6 6.0
2016-Aug-17 03:33N 43°30' E 010°09'1616.4
2016-Aug-17 02:33N 43°31' E 009°47'1615.6
2016-Aug-17 01:33N 43°33' E 009°25'1615.5
2016-Aug-17 00:33N 43°36' E 009°04'713.0
2016-Aug-17 00:00N 43°36' E 008°54'921.1 220 / 161011.0 5.4 1.023.0 26.7
2016-Aug-16 23:34N 43°38' E 008°42'1716.6
2016-Aug-16 22:33N 43°39' E 008°19'3315.8
2016-Aug-16 20:27N 43°44' E 007°33'5 5.2
2016-Aug-16 19:33N 43°44' E 007°27'0 0.0
2016-Aug-16 18:15N 43°44' E 007°27'0 0.0
2016-Aug-16 17:32N 43°44' E 007°27'0 0.0
2016-Aug-16 16:32N 43°44' E 007°27'0 0.0
2016-Aug-16 15:32N 43°44' E 007°27'0 0.0
2016-Aug-16 14:31N 43°44' E 007°27'0 0.1
2016-Aug-16 13:22N 43°44' E 007°27'0 0.0
2016-Aug-16 12:30N 43°44' E 007°27'3 5.6
2016-Aug-16 12:00N 43°42' E 007°24'3 5.2 250 / 71014.0 2.2 0.526.4 27.1
2016-Aug-16 11:27N 43°44' E 007°27'0 0.0
2016-Aug-16 10:20N 43°44' E 007°27'0 0.0
2016-Aug-16 09:20N 43°44' E 007°27'0 0.0
2016-Aug-16 08:28N 43°44' E 007°27'0 0.1
2016-Aug-16 07:33N 43°44' E 007°27'4214.1
2016-Aug-16 04:33N 43°12' E 006°49'2019.6
2016-Aug-16 03:33N 42°58' E 006°30'2120.4
2016-Aug-16 02:33N 42°48' E 006°06'4721.0
2016-Aug-16 00:17N 42°25' E 005°09'3 8.9
2016-Aug-16 00:00N 42°24' E 005°06'1525.2 190 / 91016.010.8 0.521.0 25.3
2016-Aug-15 23:23N 42°17' E 004°48'1917.5
2016-Aug-15 22:17N 42°08' E 004°25'1317.6
2016-Aug-15 21:33N 42°02' E 004°09'3 5.6
2016-Aug-15 21:00N 42°00' E 004°06'1531.0 180 / 191015.0 5.4 1.022.0 25.8
2016-Aug-15 20:31N 41°53' E 003°48'1717.0
2016-Aug-15 19:32N 41°46' E 003°29'1817.2
2016-Aug-15 18:31N 41°37' E 003°08'  
Track history (hours):
 
Tides and Currents Weather Stations Pressure Air Temp Water Temp Dewpoint Dewpoint Depression Visibility Wind Speed Wind Dir Waves Ship Positions

Celebrity Equinox

Last reported at 2016-Aug-25 17:31 UTC. Time now 2016-Aug-25 18:32 UTC.
Position N 37°56' E 023°37'.

Length 317 m; draft 8.6 m.

Type: Passenger vessel. MMSI: 249667000.

Date/timePositionNaut miles runAvg speedWind from/ knotsBaromVisibWave heightAir tempDewpointWater temp
2016-Aug-25 17:31N 37°56' E 023°37'0 0.0
2016-Aug-25 16:33N 37°56' E 023°37'0 0.0
2016-Aug-25 15:33N 37°56' E 023°37'0 0.0
2016-Aug-25 14:32N 37°56' E 023°37'0 0.0
2016-Aug-25 13:32N 37°56' E 023°37'0 0.0
2016-Aug-25 12:32N 37°56' E 023°37'3 4.7
2016-Aug-25 12:00N 37°54' E 023°36'3 5.3 050 / 221008.0 5.4 1.028.3 29.2
2016-Aug-25 11:31N 37°56' E 023°37'0 0.0
2016-Aug-25 10:31N 37°56' E 023°37'0 0.0
2016-Aug-25 09:33N 37°56' E 023°37'0 0.0
2016-Aug-25 08:33N 37°56' E 023°37'0 0.0
2016-Aug-25 07:32N 37°56' E 023°37'0 0.0
2016-Aug-25 06:32N 37°56' E 023°37'0 0.0
2016-Aug-25 04:31N 37°56' E 023°37'0 0.0
2016-Aug-25 03:31N 37°56' E 023°37'0 0.0
2016-Aug-25 02:33N 37°56' E 023°37'0 0.0
2016-Aug-25 01:33N 37°56' E 023°37'0 0.0
2016-Aug-25 00:32N 37°56' E 023°37'1 0.9
2016-Aug-24 23:34N 37°56' E 023°37'1414.3
2016-Aug-24 22:33N 37°43' E 023°44'5919.3
2016-Aug-24 19:30N 37°32' E 024°58'1718.5
2016-Aug-24 18:33N 37°28' E 025°19'0 0.2
2016-Aug-24 17:33N 37°28' E 025°19'0 0.0
2016-Aug-24 16:32N 37°28' E 025°19'0 0.0
2016-Aug-24 15:32N 37°28' E 025°19'0 0.0
2016-Aug-24 14:31N 37°28' E 025°19'1 1.0
2016-Aug-24 13:33N 37°27' E 025°19'0 0.1
2016-Aug-24 12:33N 37°27' E 025°19'0 0.1
2016-Aug-24 11:32N 37°27' E 025°19'0 0.1
2016-Aug-24 10:32N 37°27' E 025°19'0 0.0
2016-Aug-24 09:29N 37°27' E 025°19'0 0.0
2016-Aug-24 08:28N 37°27' E 025°19'0 0.1
2016-Aug-24 07:33N 37°27' E 025°19'4 4.1
2016-Aug-24 06:34N 37°28' E 025°14'14 7.1
2016-Aug-24 04:34N 37°21' E 025°29'1312.6
2016-Aug-24 03:32N 37°21' E 025°46'4 6.5
2016-Aug-24 03:00N 37°18' E 025°48'3611.8 350 / 351005.0 5.4 1.020.0 26.0
2016-Aug-24 00:00N 37°06' E 026°30'37 1.9 010 / 291005.0 5.4 25.7 26.5
2016-Aug-23 04:00N 36°42' E 027°06'8710.9 290 / 151006.010.8 1.024.0 27.0
2016-Aug-22 20:00N 36°12' E 025°24'12 1.1 290 / 121008.0 5.4 0.525.0 27.4
2016-Aug-22 09:00N 36°24' E 025°24'4910.3 310 / 131010.0 5.4 0.526.0 27.1
2016-Aug-22 04:12N 36°24' E 024°23'1117.6
2016-Aug-22 03:33N 36°24' E 024°09'1717.4
2016-Aug-22 02:33N 36°24' E 023°47'1818.2
2016-Aug-22 01:33N 36°23' E 023°25'3018.9
2016-Aug-22 00:00N 36°24' E 022°48'6315.8 320 / 61010.010.8 0.525.0 28.4
2016-Aug-21 20:00N 36°30' E 021°30'16918.7 320 / 181011.010.8 1.025.0 28.7
2016-Aug-21 11:00N 37°12' E 018°06'12619.6 340 / 91012.0 2.2 22.0 28.6
2016-Aug-21 04:33N 37°54' E 015°36'1716.8
2016-Aug-21 03:33N 38°11' E 015°36'1413.6
2016-Aug-21 02:33N 38°25' E 015°37'1527.1
2016-Aug-21 02:00N 38°36' E 015°24'410.0 100 / 101012.010.8 0.523.5 27.0
2016-Aug-21 01:33N 38°39' E 015°27'1817.3
2016-Aug-21 00:32N 38°55' E 015°18'1221.2
2016-Aug-21 00:00N 39°06' E 015°12'512.3 320 / 21012.0 2.2 20.0 28.0
2016-Aug-20 23:33N 39°11' E 015°09'4316.6
2016-Aug-20 21:00N 39°48' E 014°42'4617.9 300 / 51013.0 5.4 0.524.0 28.0
2016-Aug-20 18:25N 40°30' E 014°18'1517.1
2016-Aug-20 17:34N 40°45' E 014°17'5 1.3
2016-Aug-20 13:31N 40°50' E 014°16'0 0.0
2016-Aug-20 12:33N 40°50' E 014°16'0 0.0
2016-Aug-20 11:33N 40°50' E 014°16'0 0.0
2016-Aug-20 04:33N 40°50' E 014°16'7 7.4
2016-Aug-20 03:33N 40°43' E 014°14'1615.9
2016-Aug-20 02:34N 40°28' E 014°07'1120.3
2016-Aug-20 02:00N 40°18' E 014°00'612.9 040 / 101011.010.8 0.524.0 28.0
2016-Aug-20 01:34N 40°13' E 014°02'1616.0
2016-Aug-20 00:34N 39°57' E 013°59'2216.2
2016-Aug-19 23:12N 39°36' E 013°52'1015.8
2016-Aug-19 22:34N 39°26' E 013°48'2035.9
2016-Aug-19 22:00N 39°06' E 013°42'4 9.7 170 / 51012.0 5.4 0.525.0 28.6
2016-Aug-19 21:33N 39°10' E 013°44'1616.6
2016-Aug-19 20:34N 38°54' E 013°39'1616.4
2016-Aug-19 19:33N 38°38' E 013°34'1616.3
2016-Aug-19 18:33N 38°22' E 013°29'1212.1
2016-Aug-19 17:33N 38°11' E 013°25'4 3.6
2016-Aug-19 16:33N 38°07' E 013°23'1 0.8
2016-Aug-19 15:32N 38°08' E 013°22'0 0.0
2016-Aug-19 14:31N 38°08' E 013°22'0 0.0
2016-Aug-19 13:31N 38°08' E 013°22'0 0.0
2016-Aug-19 12:33N 38°08' E 013°22'711.7
2016-Aug-19 12:00N 38°06' E 013°30'714.9 080 / 81011.010.8 0.526.3 26.6
2016-Aug-19 11:33N 38°08' E 013°22'0 0.0
2016-Aug-19 10:32N 38°08' E 013°22'3 6.3
2016-Aug-19 10:00N 38°06' E 013°18'3 7.6 999 / 61011.0 5.4 0.526.0 26.0
2016-Aug-19 09:32N 38°08' E 013°22'0 0.0
2016-Aug-19 08:32N 38°08' E 013°22'0 0.1
2016-Aug-19 07:33N 38°08' E 013°22'7 7.4
2016-Aug-19 06:33N 38°15' E 013°24'1716.9
2016-Aug-19 05:33N 38°32' E 013°22'6019.3
2016-Aug-19 02:26N 39°29' E 012°58'3 6.8
2016-Aug-19 02:00N 39°30' E 012°54'10320.5 270 / 51009.010.8 0.524.0 27.0
2016-Aug-18 21:00N 41°06' E 012°06'63 7.0 250 / 81009.0 5.4 1.023.0 27.1
2016-Aug-18 12:00N 42°06' E 011°42'0 0.0 350 / 61008.010.8 27.6 25.3
2016-Aug-18 09:00N 42°06' E 011°42'61 6.3 170 / 121008.0 5.4 0.527.0 25.1
2016-Aug-17 23:12N 42°30' E 010°26'1014.9
2016-Aug-17 22:33N 42°36' E 010°15'3213.8
2016-Aug-17 20:13N 43°07' E 010°04'1015.2
2016-Aug-17 19:33N 43°16' E 010°09'1515.0
2016-Aug-17 18:33N 43°31' E 010°14'4 3.7
2016-Aug-17 17:32N 43°33' E 010°18'0 0.0
2016-Aug-17 16:32N 43°33' E 010°18'0 0.0
2016-Aug-17 15:31N 43°33' E 010°18'0 0.0
2016-Aug-17 14:28N 43°33' E 010°18'0 0.0
2016-Aug-17 13:30N 43°33' E 010°18'0 0.0
2016-Aug-17 12:33N 43°33' E 010°18'0 0.0
2016-Aug-17 10:08N 43°33' E 010°18'0 0.0
2016-Aug-17 09:31N 43°33' E 010°18'0 0.0
2016-Aug-17 08:31N 43°33' E 010°18'0 0.0
2016-Aug-17 07:31N 43°33' E 010°18'0 0.0
2016-Aug-17 06:33N 43°33' E 010°18'0 0.0
2016-Aug-17 05:33N 43°33' E 010°18'1 1.4
2016-Aug-17 04:33N 43°32' E 010°17'6 6.0
2016-Aug-17 03:33N 43°30' E 010°09'1616.4
2016-Aug-17 02:33N 43°31' E 009°47'1615.6
2016-Aug-17 01:33N 43°33' E 009°25'1615.5
2016-Aug-17 00:33N 43°36' E 009°04'713.0
2016-Aug-17 00:00N 43°36' E 008°54'921.1 220 / 161011.0 5.4 1.023.0 26.7
2016-Aug-16 23:34N 43°38' E 008°42'1716.6
2016-Aug-16 22:33N 43°39' E 008°19'3315.8
2016-Aug-16 20:27N 43°44' E 007°33'5 5.2
2016-Aug-16 19:33N 43°44' E 007°27'0 0.0
2016-Aug-16 18:15N 43°44' E 007°27'0 0.0
2016-Aug-16 17:32N 43°44' E 007°27'0 0.0
2016-Aug-16 16:32N 43°44' E 007°27'0 0.0
2016-Aug-16 15:32N 43°44' E 007°27'0 0.0
2016-Aug-16 14:31N 43°44' E 007°27'0 0.1
2016-Aug-16 13:22N 43°44' E 007°27'0 0.0
2016-Aug-16 12:30N 43°44' E 007°27'3 5.6
2016-Aug-16 12:00N 43°42' E 007°24'3 5.2 250 / 71014.0 2.2 0.526.4 27.1
2016-Aug-16 11:27N 43°44' E 007°27'0 0.0
2016-Aug-16 10:20N 43°44' E 007°27'0 0.0
2016-Aug-16 09:20N 43°44' E 007°27'0 0.0
2016-Aug-16 08:28N 43°44' E 007°27'0 0.1
2016-Aug-16 07:33N 43°44' E 007°27'4214.1
2016-Aug-16 04:33N 43°12' E 006°49'2019.6
2016-Aug-16 03:33N 42°58' E 006°30'2120.4
2016-Aug-16 02:33N 42°48' E 006°06'4721.0
2016-Aug-16 00:17N 42°25' E 005°09'3 8.9
2016-Aug-16 00:00N 42°24' E 005°06'1525.2 190 / 91016.010.8 0.521.0 25.3
2016-Aug-15 23:23N 42°17' E 004°48'1917.5
2016-Aug-15 22:17N 42°08' E 004°25'1317.6
2016-Aug-15 21:33N 42°02' E 004°09'3 5.6
2016-Aug-15 21:00N 42°00' E 004°06'1531.0 180 / 191015.0 5.4 1.022.0 25.8
2016-Aug-15 20:31N 41°53' E 003°48'1717.0
2016-Aug-15 19:32N 41°46' E 003°29'1817.2
2016-Aug-15 18:31N 41°37' E 003°08'  

Dump ship's entire track history