Topic: Sunrise/Sunset wrong on WS-2000

[Adam8622]

Hey all. I recently upgraded my WS 1200 to WS 2000. I did the install but the sunrise/sunset times are off, not by much though. My zip code is 18076, Sunrise today was 0709 and sunset was 1635. My console is displaying sunrise at 0726 and sunset at 1621.

My time/date is setup as UTC-0500. I have my lat & long also. The only issue I ran into was the lat/long on the console only allows xx.xxxx, my lat/long according to multiple sites is xx.xxxxxx. Will my sunrise/sunset times always be inaccurate due the console not knowing my complete lat/long? 

I do not recall having this issue with my WS 1200 but I had that thing since before I was married and kids lol, its been a while.

Thanks!

[galfert]

It is determined by the Latitude and Longitude. Just curious by how much you think it is off? Do also take into consideration the different twilights and that maybe you are just going by a different one than the unit is.

https://www.timeanddate.com/astronomy/different-types-twilight.html

[sky_watcher]

Hey all. I recently upgraded my WS 1200 to WS 2000. I did the install but the sunrise/sunset times are off, not by much though. My zip code is 18076, Sunrise today was 0709 and sunset was 1635. My console is displaying sunrise at 0726 and sunset at 1621.

My time/date is setup as UTC-0500. I have my lat & long also. The only issue I ran into was the lat/long on the console only allows xx.xxxx, my lat/long according to multiple sites is xx.xxxxxx. Will my sunrise/sunset times always be inaccurate due the console not knowing my complete lat/long? 

I do not recall having this issue with my WS 1200 but I had that thing since before I was married and kids lol, its been a while.

Thanks!

"Because of refraction, the Sun may be seen for several minutes before it actually rises in the morning and after it sets in the evening." I would assume that the weather station would take this into account, but you should be abble to check using the calculations on this website.

[Adam8622]

Well, it is off by 17min for sunrise and 14min for sunset. I did not take the different twilights into consideration as the console is suppose to display actual sunrise, as that what sunrise means is when the sun comes up. Thats what it means to me anyway lol. My old ws1200 was spot on for sunrise/sunset. I rely on the sunrise times as I hunt often. I guess I will have to live with it then. Thats a bummer as I expected a newer unit to be at least as good as an older one.

[Adam8622]

Well, it is off by 17min for sunrise and 14min for sunset. I did not take the different twilights into consideration as the console is suppose to display actual sunrise, as that what sunrise means is when the sun comes up. Thats what it means to me anyway lol. My old ws1200 was spot on for sunrise/sunset. I rely on the sunrise times as I hunt often. I guess I will have to live with it then. Thats a bummer as I expected a newer unit to be at least as good as an older one.

Thanks. I'm bummed the new unit is off much more then the older unit which was only off by 1 or 2 minutes. 

[Goldguru]

My guess would be that you've made an error on your Latitude & Longtitude input,you input is too far North & a lil too far West.
the XX.XXXXX to XX.XXXX wont make a great deal of differance on sun times
so round off your north & west like so
Red Hill PA is located at 40°22′35″N 75°29′4″W (40.376388, -75.484444)
make it 40.3764N & 75.4844W
if the day is still too short change to 40.3763N continue to lower the North untill the day length is correct
when the day length becomes correct but rise & set rimes are off the adjust your degree's west +/- from 75.4844 to 75.4845 to make the rise & set times later,or 75.4843 to make the rise/set times earlier.

for me to get your posted times you would have had to enter ~45.3333N & ~75.7333W that gets me a rise time of 7:26 & set of 16:21
you can check this here
https://www.esrl.noaa.gov/gmd/grad/solcalc/sunrise.html
select "enter lat/long instead of location under the "city" tab
enter 45dg 20min 0 sec N   75deg 44min 0 sec w
& you will see the times your unit is displaying
enter in your proper Cords & you will see what you are expecting to see for times.


Now If you have exact cords of your home in deg-min-sec then divide the sec by 60,add that to min & div by 60 again add that decimal figure to your degrees & round it up/down to 4 decimal places IE 40.3764N

  40°22′35″  35/60=0.58333 + 22/60=0.3763888 + 40= 40.376388 round up to 40.3764
same goes if you have deg min.dec  IE 40 22.58333 div 22.58333 by 60 + 40= 40.3764

Also be certain you are selecting North & west in the lat/long setup menu's.

After checking it all & entering the correct lat/long you still show incorrect times I would be contacting Ambient about the problem.
Hope that Helps

[Adam8622]

My guess would be that you've made an error on your Latitude & Longtitude input,you input is too far North & a lil too far West.
the XX.XXXXX to XX.XXXX wont make a great deal of differance on sun times
so round off your north & west like so
Red Hill PA is located at 40°22′35″N 75°29′4″W (40.376388, -75.484444)
make it 40.3764N & 75.4844W
if the day is still too short change to 40.3763N continue to lower the North untill the day length is correct
when the day length becomes correct but rise & set rimes are off the adjust your degree's west +/- from 75.4844 to 75.4845 to make the rise & set times later,or 75.4843 to make the rise/set times earlier.

for me to get your posted times you would have had to enter ~45.3333N & ~75.7333W that gets me a rise time of 7:26 & set of 16:21
you can check this here
https://www.esrl.noaa.gov/gmd/grad/solcalc/sunrise.html
select "enter lat/long instead of location under the "city" tab
enter 45dg 20min 0 sec N   75deg 44min 0 sec w
& you will see the times your unit is displaying
enter in your proper Cords & you will see what you are expecting to see for times.


Now If you have exact cords of your home in deg-min-sec then divide the sec by 60,add that to min & div by 60 again add that decimal figure to your degrees & round it up/down to 4 decimal places IE 40.3764N

  40°22′35″  35/60=0.58333 + 22/60=0.3763888 + 40= 40.376388 round up to 40.3764
same goes if you have deg min.dec  IE 40 22.58333 div 22.58333 by 60 + 40= 40.3764

Also be certain you are selecting North & west in the lat/long setup menu's.

After checking it all & entering the correct lat/long you still show incorrect times I would be contacting Ambient about the problem.
Hope that Helps

Wow, you live up to your username! Ha. Thank you for that advice. I played with it this morning and got it close enough. My actual sunrise/sunset times for today is 0711 & 1637. My console displays sunrise/sunset for today at 0711 & 1635. The lat long I have entered into my console currently is N40.5000 & W75.3000. I looked up where that lat/long is and it is 15 road miles to the east of me. Happy with the results nonetheless. Thank you very much!

[Goldguru]

Ok so your day is still 1min to short therefore your still too far north.(I get 7:11 & 16:34 for those cord's on the NOAA site)

"My console displays sunrise/sunset for today at 0711 & 1635. The lat long I have entered into my console currently is N40.5000 & W75.3000"

which is shown by N40.5000, lower that some more.the goal is get your Day length correct 1st.(Dec5 is 09:24:49)
then tune in the rise & set times by adjusting the Longtitude in your case it need's to be increased,which in turn is getting you closer to the supplied numbers you were to enter.

I'm real curious as to what showed on your display for times with N40.3764, W75.4844 entered?( Wiki Cord's wrong? wouldn't surprise me.)
Sounds to me like the unit is just Fine & displaying the times which are CORRECT FOR THE POSITION ENTERED.
That said perhaps when you entered the above position you didn't wait long enough for the display to update the times?

correct sun rise/set times are here

https://sunrise-sunset.org/us/red-hill-pa

Red Hill, Pennsylvania
Latitude: 40.372879   <<<< would be 40.3729
Longitude: -75.481010  <<< would be 75.4810
quite  differance from the wiki link I got the other cords from?
you can also enter a street address there for more accuracy.

Red Hill PA is located at 40°22′35″N 75°29′4″W (40.376388, -75.484444)
make it 40.3764N & 75.4844W From Wiki(never again will I trust a WIKI page)




Now you must realize that I dont know your exact position therefore I can only show times relative to Red Hill PA which I also can't verify those either as to their accuracy
the times ARE NOT rounded on that page.

Now compare yesterday & today (here is where ROUNDING comes evident.
rise is 55 seconds later & setting is only 4 seconds earlier Total length of day differance of 59 seconds.

so If you leave your settings as "Close Enough" the error you have entered will become increasingly evident as the seasons change.
Also your Display IS NOT a GPS therefore rounding has to be implemented in order to accomadate the lack of seconds of time.

so rise/set times off by ~1 min or more should be ignored & will on AVG give the best possible times for the entire YEAR not just today(I know that your present times are only off by ~1 min now But It will be much further OFF in less that 1 month again due to rounding & your being to far north)

There you have it remember it's your unit, tune to how you see fit,for the results you want to see.

Gg

[Adam8622]

How long will it take for the console to update the changes? Anyway, with N40.3764, W75.4844 my console shows 0711 & 1637.

According to the link you provided, for today, 0710 & 1635. Now if I change it to N40.3729 & W75.4810, my console still shows 0711 & 1637. Now my sunset is off by 2min. I'm ok with the 2min IF it remains 2min the rest of the year and does not get further off as you stated could happen above. If I leave it alone at N40.3729 & W75.4810 will I remain accurate within a couple mins for the whole year? My town is only about a 1/2 mi X 1/2 mi so assuming the actual coordinates for my house would not change things much. For the haha's I did check to see where N40.3729 & W75.4810 is and it is about 1400ft from my residence.

[Adam8622]

Forgot to add that 1400ft distance is how the crow flies.

[Goldguru]

ok so now your day is 1 mins too long LOL
& your rise & set times are 1 min too late.(this means you are West & South)
So you need just a touch more Lat to decrease the 1 min of extra daylite
And you need a lil less Long to move the rise/set time too earlier in the day.
7:11 - 16:37  Adj + lat to get 7:11 - 16:36
7:11 - 16.36  Adj - Long to get  7:10 - 16:35 

+/- 0.01 or 0.02 adjustments now
for both the lat & long adjust PAST what you want then you can bring it back by spltiing the difference of the last few positions which will put you in the sweet spot.
it should be easier to do the Lat 1st for it soley is responsible for the daylite Hrs (Day Length)
Long is soley responsible for the rise & set times


I'm certain you can make the times exactly how you want them with a lil more time spent adjusting.

As for it being correct though out the year only time will tell. however If you stay "relatively close" to your physical position the error is not adjustable..remember rounding built into the consule.

When should you call it "Good Enough"?
when YOU are satisfied with what you are seeing on your display as it compares to other sites/tools/GPS/ETC that includes the errors which you are willing to ignore/can't do anything about,once you have it where YOU want it you can now say.
"SUNRISE/SET is EXACTLY @ XX:XX AM today @ My House.lol

[Adam8622]

Ill have to play with it more when I get home. I know it showed 0712 & 1637 today on the console and the website you linked shows 0711 & 1635 for today.