Observed Passes of Satellites, Rocket Bodies (etc.) in 2020

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Christopher K.
Posts: 5570
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

15 June 2020 Predicted Visible Passes

Post by Christopher K. »

There are three visibles passes brighter than 2.5 predicted for this evening; the passes begin at 8:44pm and end at 9:54pm. I do not recommend attempt to spot them as the forecast doesn't call for excellent or very good skies. Please go to Heavens Above to generate a list if you are interested anyway.

Here is the NOAA forecast for 10pm CDT tonight...
precipitation potential, 1%
sky cover, 44%
relative humidity, 67%
temperature, 27˚C
heat index, 28˚C
surface wind, W 3 km/h

Danko's Clear Dark Sky states that all throughout the night the transparency rating will be "below average" (2 out of 5) and the seeing rating will be "average" (3 out of 5). If the predictions hold there will be one hour of good conditions from skygazing--from 10pm to 11pm. The transparency becomes "too cloudy to forecast" from 11pm to 2am; the relative humidity reaches ninety percent at 4am.

Christopher K.
Posts: 5570
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

16 June 2020 Predicted Visible Passes

Post by Christopher K. »

There are three visibles passes brighter than 2.5 predicted for this evening; the passes begin at 9:20pm and end at 10:24pm. I do not recommend attempt to spot them as the forecasts are yield disparate data. Please go to Heavens Above to generate a list if you are interested anyway.

Here is the NOAA forecast for 10pm CDT tonight...
precipitation potential, 0%
sky cover, 12%
relative humidity, 58%
temperature, 26˚C
surface wind, NE 3 km/h

Danko's Clear Dark Sky states that all throughout the night the transparency rating will be "too cloudy to forecast" (0 out of 5) and the seeing rating will be "average" (3 out of 5). If the predictions hold conditions will improve overnight, with the best transparency from 2am to 3am.

Christopher K.
Posts: 5570
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Summer 2020 "Edge of Night" Viewing Session

Post by Christopher K. »

The second of three Edge of Night twilight viewing sessions always takes place the Friday of Independence Day week. For 2020 that will be Friday 3 July from 8pm to 10pm. We do know that the waxing gibbous Moon will be available, and visible passes of five defunct rocket bodies are predicted for between 8:30pm and 9:55pm Central Daylight Time. Additionally there will be three Starlinks passes at magnitudes at least as bright as 3.5. The event has no admission fee and is for all ages. HRPO personnel encourage patrons to bring binoculars. Phase 2 Guidelines will still be in effect.

Christopher K.
Posts: 5570
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: Observed Passes of Satellites, Rocket Bodies (etc.) in 2020

Post by Christopher K. »

The International Space Station will pass over from about 9:16pm to 9:20pm, passing from NW to S; the predicted magnitude is -3.1. Please go to Heavens Above to generate more accurate information for your location.

Here is the NOAA forecast for 9:30pm CDT tonight...
precipitation potential, 0%
sky cover, 28%
relative humidity, 65%
temperature, 29˚C
heat index, 32˚C
surface wind, NE 3 km/h

Danko's Clear Dark Sky states that both the transparency rating and the seeing rating will be "average" (3 out of 5). If the predictions hold the tranparency and humidity will deteriorate, the seeing will improve and the sky cover will stay about the same.

Christopher K.
Posts: 5570
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: Observed Passes of Satellites, Rocket Bodies (etc.) in 2020

Post by Christopher K. »

We had deteriorated skies earlier, so no viewing of passes tonight! However, we should have good skies between midnight and 2am, with above average transparency and excellent seeing.

Christopher K.
Posts: 5570
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: Observed Passes of Satellites, Rocket Bodies (etc.) in 2020

Post by Christopher K. »

This is the schedule for the Fall 2020 Edge of Night session tomorrow at HRPO...
*4:45pm = NASA TV {“Advanced Science and Technology Through Flight”}
*5:00pm = NASA TV {“ATTREX”}
*5:12pm = sunset / “civil twilight” begins / search for crepuscular rays
*5:18pm = appearance of Jupiter [mag -2.1]
*5:20pm = appearance of Mars [mag -1.9]
*5:30pm = NASA TV {“5 Things that Changed Weather Forecasting Forever”}
*5:38pm = “nautical twilight” begins / appearance of Vega [mag 0.0] / search for airplane lights
*5:44pm = appearance of Saturn [mag 0.6]
*5:46pm = appearance of Altair [mag 0.8]
*5:49pm = appearance of Fomalhaut [mag 1.2]
*5:50pm = appearance of Deneb [mag 1.3]
*5:56pm = appearance of Polaris [mag 1.9]
*6:00pm = NASA TV {“Meeting the Artemis Generation”}
*6:05pm = appearance of Great Square of Pegasus [dimmest part mag 2.8]
*6:07pm = “astronomical twilight” begins / appearance of Albireo [mag 3.0] / search for deepest non-black colors
*6:11pm = Predicted Visible Pass (Chang Zheng 2C rocket body)
*6:14pm = Predicted Visible Pass (Cosmos 1689 rocket)
*6:20pm = appearance of The Dolphin [dimmest part mag 4.4]
*6:31pm = Predicted Visible Pass (Cosmos 2322 rocket)
*6:35pm = night begins / comparison of sky to 4:45pm sky

Please keep in mind, telescope viewing at Edge of Night sessions is secondary. HRPO has fewer telescopes out than during regular sky viewing. Also, a new challenge is introduced with this EoN session: no telescope will be trained on an object until at least half of the participating patrons can see the object with no equipment (with the exception of the Dolphin).

More information:
http://hrpo.lsu.edu/programs/edge.html

Christopher K.
Posts: 5570
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: Observed Passes of Satellites, Rocket Bodies (etc.) in 2020

Post by Christopher K. »

Phase Three restrictions are still being imposed on HRPO...
*All people who are not part of the same household must stay at least six feet apart from one another.
*Only fifty (50) patrons are allowed on site at any one time.
*Only twelve (12) patrons are allowed inside the main floor at any one time.
*No patron will be allowed inside the main floor unless he/she agrees to a temperature scan and wears a mask.
*Only one (1) patron will be allowed inside each bathroom at any one time.
*There is a strict time limit of thirty minutes for each patron’s visit.

Sunset is at 5:12pm CST. Below is the NOAA forecast for 5pm to 7pm...
precipitation potential, 0%
sky cover, 74%
relative humidity, 67%
temperature, 22˚C
surface wind, E 6 km/h

Danko's Clear Dark Sky states that during HRPO's viewing time the transparency rating will be "above average" (4 out of 5) and the seeing rating will be "average" (3 out of 5).

Twilight ends at 6:35pm CST; HRPO closes at 6:45pm.

The 6 November 2020 rating is...
EXCELLENT
VERY GOOD
GOOD
FAIR
POOR
BAD

Christopher K.
Posts: 5570
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: Observed Passes of Satellites, Rocket Bodies (etc.) in 2020

Post by Christopher K. »

The International Space Station should pass tonight with a predicted -3.8(!) magnitude. That's almost as bright as Venus is now! Look between 5:35pm and 5:45pm this evening, about seventy degrees in the northeast.

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