Mt Pleasant CORS Cambridge, Tasmania, Australia
By
Geocaching Australia on 23-Sep-17. Waypoint TP7673
Cache Details
| Difficulty: | |
| Terrain: | |
| Type: | TrigPoint |
| Container: | Other |
| Coordinates: | S42° 48.283' E147° 26.324' (WGS 84) |
| 55G 535873E 5260777N (UTM) | |
| Elevation: | 43 m |
| Local Government Area: | Clarence |
/147.438733,-42.804717,14/400x200?access_token=pk.eyJ1IjoiY2F1Z2h0YXR3b3JrIiwiYSI6ImNqa2l4ZzNzMDE5bjgzdm1sZGpuODF1Mm0ifQ.q8YMzVyzDJJlJHHV8EMjwQ)
Description
CORS (Continually Operating Reference Stations) collecting geodetic data from GNSS.
A CORS is a Continuously Operating Reference Station. CORS can take the place of a traditional base station used in differential GNSS positing. They can give an instant position to an accuracy of ±20 mm and are used in many industries including Precision Agriculture, Construction, Mining, Surveying and in Scientific Research.
Typically, the maximum distance between a base station and rover GNSS set up is around 10 - 15 km. This is due to the effect of the atmosphere on the GNSS signals as they travel from the satellite to a GNSS receiver.
With the establishment of a network of CORS, the distance between the base and the rover can be extended. The CORS can be spaced around 70 km apart and using at least 3 of these CORS, the atmospheric effects can be modelled and corrected for, yielding the ±20 mm position solution required by so many industries.
More info on CORS can be found here: CORS
Mt Pleasant CORS
The Mt Pleasant CORS is located in the grounds of the Mt Pleasant Radio Astronomy Observatory and the Grote Reber Museum near Cambridge in Southern Tasmania and is easily accessible.
The official name of this Trig Station as per SmartNet Australia is HOB2
Type: AOAD/M_T NONE antenna attached to a stainless steel plate on a concrete pillar.
Services: Realtime & Rinex
Latitude: 42° 48' 16.98553" S (S42 48.283)
Longitude: 147° 26' 19.43584" E (E147 26.324)
Elevation: 41.133 (Ellipsoidal)
Source: SmartNet Aus
To log a find on the Geocaching Ausralia website, you will need to include a picture of the CORS, along with your GPS receiver and preferably yourself. You are encouraged to leave a description of your journey in your log to help others in finding the CORS.
Logs
Was seeing a customer nearby in the area so stopped by to grab this trig.
Drove up the driveway and stopped to snap the required photo. TFTC
Drove up the driveway and stopped to snap the required photo. TFTC
One of the trigs we found today to complete a research task. Required pic has been added to the gallery.
Many thanks Geocaching Australia for publishing this cache and adding to our geocaching experience.
Tassie Trekkers are now a locationless geocache we have published a 'Geocacher cache' - Travelling Trekkers GA10932 - so if you spot us in your area sign our log book and receive a code word to earn yourself a
Have you joined a clan? Enhance your geocaching experience by joining a clan and being a part of the Dragon Zone. Choose a team
Gold - Griffin, 
Green - Phoenix, 
Blue - Cerberus or Orange - Minotaur. Earn trophies and rise through the ranks from Dragon Fodder to Ruler of the Universe. Rated: for Overall Experience
Thanks for the Trig
I had been here before and got the required photo's but the SD card got corrupted so I had to come back and do it all over again.
Found on Monday 29 October 2018 at 1611"
I had been here before and got the required photo's but the SD card got corrupted so I had to come back and do it all over again.
Found on Monday 29 October 2018 at 1611"
out and about to get some caches for the new challenge, this Trig Point just had to be Photographed for proof of visit. TFTT TNBPLN Trig dry "not raining"
Rated: for Overall Experience
The observatory had an open day today so I battled the elements with the rats to log this CORS before doing an official tour.
Out and about hiding moveables and made a slight detour to take the required photo which has been added to the gallery. TFTT
Sorry about the lengthy logs. We are currently aiming for a dragon zone virtual verbosity trophy. We have just received the 100 word trophy, so now aiming for the 150 word trophy. For all new GCA cachers, a warning, write a decent log to start with in case you want to get these virtual trophies down the track. Having now passed 2000 GCA finds with a lot of one word logs (on many moveables) makes for a lot of typing now!
We are participating in the States of the Nation games which are currently running from 16 December 2017 until 21 January 2018 and we will try and use this find against one of the scavenges.
States of the Nation is a real and virtual geocaching scavenger hunt where your home state will compete against other Australian states to find and hide geocaches. Over the 5 week course of the game there will be hundreds of scavenges that you can track down, find and convert into points for your state. Some scavenges will be easy. Some scavenges will be tough. Some scavenges may be impossible. Don't despair. You are not competing just for yourself; you are competing as a state.
There will be a number of scavenges released on a weekly basis but each scavenge will remain until the end of the game. This means even if you decide to join the game part way through, the early scavenges are still available for you to claim. Scavenges will require you to find a geocache, hide a geocache, attend an event or do something else completely different. The game focuses on all aspects of geocaching and so all cache types, sizes, terrain and difficulty will be up for scavenging. TrigPoints, Events, History, Virtual, Webcam, Podcache and Locationless geocaches are all scavengable, so you're not just looking for a box under a bush. Each week there will be a mix of physical, non-physical and locationless geocaches so even if you are not in a geocache rich area, use the locationless component of scavenger series to get out, find something to log and gain points for your state. If you watch the scavenges as they are released you might also spot the 'not so hidden' patterns and plan for future weeks of the series.
Hiding geocaches will also be a large part of the scavenger series, but please remember this is a game of geocaching and geocaches that you hide should be long lasting, be of good quality and you should be proud of what you hide. Please avoid hiding a geocache just for the day so your state can find it before you archive it. Geocaches that exist for a short period of time may result in any claims on that geocache being disqualified. Play creatively, but also play fairly. More geocachers hiding more geocaches makes for more geocaching fun.
Go Tassie, Go Tassie, Go Tassie, Go Tassie Go Tassie Go Tassie Go Tassie
The States of the Nation games have helped boost our dragon zone points and we have achieved a few milestone trophies as well.
Have you joined a clan? Enhance your geocaching experience by joining a clan and being a part of the Dragon Zone. Choose a team Clan Griffin , Clan Phoenix , Clan Cerberus or Clan Minotaur . Earn trophies and rise through the ranks from Dragon Fodder to Ruler of the Universe.
whitewebbs are now a geocache themselves as we have published a 'Geocacher cache' GA10805 - Where's whitewebbs? - so if you spot us out and about in the field sign our log book and receive a code word to earn yourself a smiley.
Sorry about the lengthy logs. We are currently aiming for a dragon zone virtual verbosity trophy. We have just received the 100 word trophy, so now aiming for the 150 word trophy. For all new GCA cachers, a warning, write a decent log to start with in case you want to get these virtual trophies down the track. Having now passed 2000 GCA finds with a lot of one word logs (on many moveables) makes for a lot of typing now!
We are participating in the States of the Nation games which are currently running from 16 December 2017 until 21 January 2018 and we will try and use this find against one of the scavenges.
States of the Nation is a real and virtual geocaching scavenger hunt where your home state will compete against other Australian states to find and hide geocaches. Over the 5 week course of the game there will be hundreds of scavenges that you can track down, find and convert into points for your state. Some scavenges will be easy. Some scavenges will be tough. Some scavenges may be impossible. Don't despair. You are not competing just for yourself; you are competing as a state.
There will be a number of scavenges released on a weekly basis but each scavenge will remain until the end of the game. This means even if you decide to join the game part way through, the early scavenges are still available for you to claim. Scavenges will require you to find a geocache, hide a geocache, attend an event or do something else completely different. The game focuses on all aspects of geocaching and so all cache types, sizes, terrain and difficulty will be up for scavenging. TrigPoints, Events, History, Virtual, Webcam, Podcache and Locationless geocaches are all scavengable, so you're not just looking for a box under a bush. Each week there will be a mix of physical, non-physical and locationless geocaches so even if you are not in a geocache rich area, use the locationless component of scavenger series to get out, find something to log and gain points for your state. If you watch the scavenges as they are released you might also spot the 'not so hidden' patterns and plan for future weeks of the series.
Hiding geocaches will also be a large part of the scavenger series, but please remember this is a game of geocaching and geocaches that you hide should be long lasting, be of good quality and you should be proud of what you hide. Please avoid hiding a geocache just for the day so your state can find it before you archive it. Geocaches that exist for a short period of time may result in any claims on that geocache being disqualified. Play creatively, but also play fairly. More geocachers hiding more geocaches makes for more geocaching fun.
Go Tassie, Go Tassie, Go Tassie, Go Tassie Go Tassie Go Tassie Go Tassie
The States of the Nation games have helped boost our dragon zone points and we have achieved a few milestone trophies as well.
Have you joined a clan? Enhance your geocaching experience by joining a clan and being a part of the Dragon Zone. Choose a team Clan Griffin
, Clan Phoenix , Clan Cerberus or Clan Minotaur . Earn trophies and rise through the ranks from Dragon Fodder to Ruler of the Universe. whitewebbs are now a geocache themselves as we have published a 'Geocacher cache' GA10805 - Where's whitewebbs? - so if you spot us out and about in the field sign our log book and receive a code word to earn yourself a smiley.
Rated: for Overall Experience
Woke this morning at 0730 hours but it was already 0830 hours - HAPPY DAYLIGHT SAVING TIME!
Mum had not got up to go to Church which meant my early rise was going to be wasted - decided to go caching and do today the caches I was going to look for tomorrow.
So I drove from Huonville to Sandy Bay, South Hobart, Howrah, Flagstaff Gully, Richmond, Tea Tree, Sorell, Mt Rumney and back to Huonville netting eight finds for the day driving a total of 221 kilometres - walking to and from caches for the day saw me do 8.21 kilometres on foot with 10912 steps and burning 1735 calories.
Weather: Overcast but fine, sunny and warm; temperature later in the day was 18 degrees Celsius (at Seven Mile Beach.)
Having driven from Huonville to Sandy Bay to make a find and then making three others before this; I intended to find GC7C3YH "What sounds like 'Grunts'" as my next but this cache popped up on the GPS as I was travelling to GZ for that cache.
Decided to go and see if the gate was open as it was for Sharnie's Tribe - it was so also decided to proceed anyway. I was being watched as I took the required photographs - but a flock of sheep is not going to do much objecting to my being at ground zero.
Sainted the CORS at 1310 hours.
Only a short walk from car to the CORS was required:
A total distance of 0.25 kilometres required only 212 steps burning 51 calories.
Drove outside the gate, sat and did my paperwork; then made sure the co-ordinates for GC7C3YH were in the GPS and my street navigator correctly and proceeded to drive to that cache.
DISCUSSION:
A Trig Point is a virtual cache which requires a cacher to locate the Trigonometric Station at GZ:
This was done, but is it a TRIGONOMETRIC STATION or just a CORS? Is there a difference, I don't know but the following definition of a TRIG POINT might suggest there is. Maybe, CORS may need a category of their own rather than be lumped in with true Trig Points.
A trig point (also known as a Trigonometric Station) typically consists of a black disc on top of four metal legs or concrete pillar, resembling a navigation beacon. It is also accompanied by a metal disc, which is located directly below the center point of the tripod or on top of the pillar itself:
This CORS has no resemblance to a TRIG POINT as defined above - no metal disc was visible upon inspection???
Trig points are generally located at the top of hills or points of prominence in the landscape. Many provide unique views and challenges, with some being difficult to get to:
Definitely not on top of the hill as that location contained a radio telescope and a museum, no prominence on the landscape at all.
The views were not too bad from GZ and it was easy to get to.
These points were regarded as valuable to surveyors, providing reference points for measuring distance and direction, and assisting in the creation of maps:
Not understanding how a CORS works, I have no idea of its value to the surveying world but will take some time to study their purpose and use.
To log a find on the Geocaching Australia website, you will need to include a picture of the trig point, along with your GPS receiver and (preferably) yourself. Long distance / telephoto type pictures are against the spirit of this cache. You are encouraged to leave a description of your journey in your log to help others in finding the trig point:
Photo taken as required and a description of my journey is outlined above . Enjoyed the experience.
Please respect local laws and regulations when searching for trig points. If you believe that a trig point is located on private property or in a dangerous location, you may archive the cache, by clicking on Log this Cache and place an "Archived" log on the Geocaching Australia website:
Not sure about this aspect of "laws and regulations" - I did not see any trespassing signs as described in previous logs and descriptions. However, if it may cause disputation between cachers and owners, maybe it is not a good idea for this to be listed as a trig. By appointment - does that mean to access the museum, I wonder?
If you feel that you can add to the description of this trig point or adjust the difficulty / terrain ratings, please feel free to edit this cache and amend the information suitably. Vandalism of the cache description or other information will result in your account being terminated:
Had to check my co-ordinates to make sure I was at the right location as no number associated with the trig had me wondering.
Mum had not got up to go to Church which meant my early rise was going to be wasted - decided to go caching and do today the caches I was going to look for tomorrow.
So I drove from Huonville to Sandy Bay, South Hobart, Howrah, Flagstaff Gully, Richmond, Tea Tree, Sorell, Mt Rumney and back to Huonville netting eight finds for the day driving a total of 221 kilometres - walking to and from caches for the day saw me do 8.21 kilometres on foot with 10912 steps and burning 1735 calories.
Weather: Overcast but fine, sunny and warm; temperature later in the day was 18 degrees Celsius (at Seven Mile Beach.)
Having driven from Huonville to Sandy Bay to make a find and then making three others before this; I intended to find GC7C3YH "What sounds like 'Grunts'" as my next but this cache popped up on the GPS as I was travelling to GZ for that cache.
Decided to go and see if the gate was open as it was for Sharnie's Tribe - it was so also decided to proceed anyway. I was being watched as I took the required photographs - but a flock of sheep is not going to do much objecting to my being at ground zero.
Sainted the CORS at 1310 hours.
Only a short walk from car to the CORS was required:
A total distance of 0.25 kilometres required only 212 steps burning 51 calories.
Drove outside the gate, sat and did my paperwork; then made sure the co-ordinates for GC7C3YH were in the GPS and my street navigator correctly and proceeded to drive to that cache.
DISCUSSION:
A Trig Point is a virtual cache which requires a cacher to locate the Trigonometric Station at GZ:
This was done, but is it a TRIGONOMETRIC STATION or just a CORS? Is there a difference, I don't know but the following definition of a TRIG POINT might suggest there is. Maybe, CORS may need a category of their own rather than be lumped in with true Trig Points.
A trig point (also known as a Trigonometric Station) typically consists of a black disc on top of four metal legs or concrete pillar, resembling a navigation beacon. It is also accompanied by a metal disc, which is located directly below the center point of the tripod or on top of the pillar itself:
This CORS has no resemblance to a TRIG POINT as defined above - no metal disc was visible upon inspection???
Trig points are generally located at the top of hills or points of prominence in the landscape. Many provide unique views and challenges, with some being difficult to get to:
Definitely not on top of the hill as that location contained a radio telescope and a museum, no prominence on the landscape at all.
The views were not too bad from GZ and it was easy to get to.
These points were regarded as valuable to surveyors, providing reference points for measuring distance and direction, and assisting in the creation of maps:
Not understanding how a CORS works, I have no idea of its value to the surveying world but will take some time to study their purpose and use.
To log a find on the Geocaching Australia website, you will need to include a picture of the trig point, along with your GPS receiver and (preferably) yourself. Long distance / telephoto type pictures are against the spirit of this cache. You are encouraged to leave a description of your journey in your log to help others in finding the trig point:
Photo taken as required and a description of my journey is outlined above . Enjoyed the experience.
Please respect local laws and regulations when searching for trig points. If you believe that a trig point is located on private property or in a dangerous location, you may archive the cache, by clicking on Log this Cache and place an "Archived" log on the Geocaching Australia website:
Not sure about this aspect of "laws and regulations" - I did not see any trespassing signs as described in previous logs and descriptions. However, if it may cause disputation between cachers and owners, maybe it is not a good idea for this to be listed as a trig. By appointment - does that mean to access the museum, I wonder?
If you feel that you can add to the description of this trig point or adjust the difficulty / terrain ratings, please feel free to edit this cache and amend the information suitably. Vandalism of the cache description or other information will result in your account being terminated:
Had to check my co-ordinates to make sure I was at the right location as no number associated with the trig had me wondering.
In the area for family duties so came looking for this CORS and a nearby puzzle cache that we'd solved but never searched for. Looked at the sign at the gate but decided to proceed as the gate was wide open. Figured we were probably on camera but noone about but a lot of sheep. Took the required photo and moved on. TFTC
The CORS is accessible but it is limited to either by appointment as per the sign or on open days. This is similar to GA caches, both physical and virtual, in the grounds and buildings of museums and heritage properties with limited access and Engineering markers inside buildings. The CORS is on the way up to the museum which is well worth a visit. If you don't want to go alone perhaps a group or even an event visit. Trespassing is obviously discouraged.
This morning we visited the site of the Mt Pleasant Radio Astronomy Observatory near Cambridge and quickly located the CORS. We suspected that the site may have a CORS as there are a number at the Mt Stromlo Observatory site in Canberra. This existence of the CORS at Mt Pleasant was confirmed on the SmartNet Aus site. A photo of Mrs y'stassie standing behind the CORS antenna is included with this log. In addition there are other photos of the two radio astronomy telescopes, the one at the top of the hill being very impressive. The site also houses the Grote Reber Museum which is open by appointment only or on infrequently held Open Days at the facility. Born in the USA, Grote Reber moved to Tasmania and before he was 30 years of age, he became the world's first radio astronomer and was the main reason that the University of Tasmania became a leader in the rapidly developing area of study. He came to Tasmania because the global position of the state gave high quality access to the radio transmissions coming from space. Having done the homework, we will claim FTF at 10:50am.
