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TP14918 - Greenwich Observatory Time Signal Ball Centre
 
[UK map]
Grid reference :
Condition :
Good Good condition
OSGB36 Station :
TQ47/T247
Current use :
none
Historic use :
T:UK waypoint :
TP14918
County :
Greater London
Nearest town :
GREENWICH PARK

OSGB36 trig archive spreadsheet - IW
Trig NameOriginal NameNew NameEASTINGNORTHINGHEIGHTORDERTYPE OF MARKComputing DateCLASS OF LEVELLINGDate of LevellingLEVELLING DATUMDESTROYED MARK INDICATORCOMMENTS
Greenwich ObservatoryTQ47/T247TQ47T247538848.46177343.720.0003BOLT01/06/194501Dest 09/51
Greenwich ObservatoryTQ47/T247TQ47T247538852.98177345.840.0003CENTRE01/06/194500Time signal ball
Greenwich ObservatoryTQ47/T247TQ47T247539251.23177339.940.0003CENTRE01/06/194501Transit theodolite. Dest 09/67
Greenwich ObservatoryTQ47/T247TQ47T247538847.60177339.080.0003OLD TRIG01/06/194501Dest 09/51

Nearby trigpointsplacenames 

There are 33 photos for this trigpoint (view album).

This trigpoint:
Is ranked joint 2333rd with 32 other trigs (more).
Has a mean score of 6.35/10 (from 17 logged visits)
Was First logged: 27th Apr 2009
Was Last logged: 18th May 2019

Of the 17 logged visits,
4 recorded a location and of these....

All were within 5053m
The average error was 1289m
2 were exact

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BROCKLEY BROCKLEY DEPTFORD PARK DEPTFORD PARK NEW CROSS NEW CROSS HILLY FIELDS HILLY FIELDS ST JOHNS ST JOHNS DEPTFORD DEPTFORD MILLWALL MILLWALL LEWISHAM LEWISHAM MILLWALL PARK MILLWALL PARK GREENWICH GREENWICH CUBITT TOWN CUBITT TOWN GREENWICH PARK GREENWICH PARK BLACKHEATH BLACKHEATH BLACKHEATH VALE BLACKHEATH VALE BLACKHEATH PARK BLACKHEATH PARK Dock Hill Dock Hill No 3 Warehouse Surrey Commercial South Docks No 3 Warehouse Surrey Commercial South Docks St Peters Church Tower Brockley St Peters Church Tower Brockley St Pauls Church Spire Deptford St Pauls Church Spire Deptford Hilly Fields Hilly Fields Mcdougalls Silo Mcdougalls Silo Greenwich Town Hall Greenwich Town Hall Our Lady Church Spire Greenwich Our Lady Church Spire Greenwich Greenwich Observatory Greenwich Observatory Woolwich Peninsula Woolwich Peninsula Granada Cinema Greenwich Granada Cinema Greenwich All Saints Church Spire Blackheath All Saints Church Spire Blackheath Fuel Research Station Tower Fuel Research Station Tower St Michael & All Angels Church Spire St Michael & All Angels Church Spire Tate & Lyles Flagstaff Tate & Lyles Flagstaff St John The Evangelist Church Spire St John The Evangelist Church Spire Roxy Cinema Blackheath Roxy Cinema Blackheath Kidbrook Parish Church Spire St James Kidbrook Parish Church Spire St James meandmymum meandmymum dave41 dave41 pkbathrooms pkbathrooms VinceTP VinceTP Greenwich Observatory Time Signal Ball Centre Greenwich Observatory Time Signal Ball Centre [Zoom In/Out] [Hide Labels]

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Selection of photos for this Intersected Station.

Greenwich Observatory Time Signal
©rwilson121

By meandmymum
Greenwich.
©BRISTOLIAN

By pkbathrooms
See 29 more in the album.

Logged Visits:

Good condition 18th May 2019  13:09  by rwilson121

FB Number: Not logged  Condition: Good  Score: 8/10

Greenwich Observatory Time Signal ©rwilson121


Good condition 18th Apr 2018  19:44  by Particle

FB Number: Not logged  Condition: Good  Score: 7/10


Good condition 18th Mar 2018  13:00  by ngthack

FB Number: Not logged  Condition: Good  Score: 5/10

Also other OS stuff in area & All Saints Blackheath IS.


Not Logged 16th Sep 2017  16:01  by VinceTP

Gridref: TQ 38932 77275   FB Number: Not logged  Condition: Not Logged  Score: 5/10


Not Logged 18th Nov 2016  10:00  by meandmymum

Gridref: TQ 33800 77300   FB Number: Not logged  Condition: Not Logged  Score: 5/10


Good condition 2nd Jul 2016  16:53  by Ant1974

FB Number: Not logged  Condition: Good  Score: 5/10


Good condition 9th Jan 2016  13:01  by oddhikingsocks

FB Number: Not logged  Condition: Good  Score: 7/10

found during a nice stroll dodging rain showers in Greenwich park. Interesting spot.


Good condition 6th Nov 2015  11:00  by Lemon Tree

FB Number: Not logged  Condition: Good  Score: 6/10

Flush Bracket no. G1692


Good condition 21st Jun 2015  19:48  by infinson

FB Number: Not logged  Condition: Good  Score: 7/10

A visit here whilst geocaching today


Good condition 14th Jun 2015  19:49  by BRISTOLIAN

FB Number: Not logged  Condition: Good  Score: 5/10

Discovered whilst Geocaching in the area.

Greenwich. ©BRISTOLIAN


Good condition 29th Apr 2015  12:40  by dave41

Gridref: TQ 38853 77345   FB Number: Not logged  Condition: Good  Score: 8/10


Good condition 22nd Jun 2014  10:26  by pkbathrooms

Gridref: TQ 38853 77345   FB Number: Not logged  Condition: Good  Score: 8/10

early for the ball drop at 1pm but on this beautiful day plenty of trigs and benchmarks to be had with the lovely scenery
























Good condition 5th Jun 2014  12:08  by CJO

FB Number: Not logged  Condition: Good  Score: 5/10

Also visited the Theodolite centre which is some distance from here. Odd that isn't a unique station in its own right.

Greenwich Observatory Time Signal Ball Centre Returned for photo at 1pm BST.
Greenwich Observatory Theodolite location


Not Logged 5th May 2014  13:00  by PhilPamAndRob

FB Number: Not logged  Condition: Not Logged  Score: 5/10

We were at Greenwich and photographed the ball drop at 1pm. Only later realised this was a trig point!

Almost time for the ball to drop ©PhilPamAndRob
The ball in motion at 1pm ©PhilPamAndRob


Good condition 19th Apr 2014  15:59  by Brisey

FB Number: Not logged  Condition: Good  Score: 8/10

A most unusual and interesting object used as a trig point, the ball on top of the Greenwich Observatory that is dropped at 1pm daily as a time signal. It is station TQ47/T247, computed to 3rd order in 1945 and maintained in 1970. The station also used to consist of an old trig and a bolt at locations up to 6m away from the ball, but these were reported destroyed in September 1951.

Time Ball The ball is in its rest position, only being raised shortly before 1pm.


Good condition 16th Feb 2013  13:08  by lonesome_cowboy_burt

FB Number: Not logged  Condition: Good  Score: 7/10

Viewed from the National Maritime Museum after a visit to the Ansel Adams exhibition, and before a pub lunch and visit to the Observatory

Greenwich Observatory Time Signal Ball Centre ©lonesome_cowboy_burt


Good condition 27th Apr 2009  13:01  by Bridgeman

FB Number: Not logged  Condition: Good  Score: 7/10

Fascinating place and well worth the visit.

Greenwich Observatory Time Signal Ball ©Bridgeman



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