Echostar 14 update

[digiblur]

When is the strength change expected? On this saturday? or May 21? Thanks. I am only interested in ConUS beam

May 19th is the scheduled day for some services. But they could swap the CONUS signals without affecting anyone as soon as the bird is ready.

 

[MexicoPete]

I'm quietly watching with my fingers crossed. Here in Seattle no problem. But when it's starts to rain, something it does here an awful lot, I head south, with my one HD receiver in my backpack (you know carry on luggage) and fly to Guadalajara Mx. Right now down there, I would get 129 with a 2.4 meter Dish, about 50% of what I subscribe to on the new bird at 110 on a 1.8 meter dish, and everything I subscribe to on Echo* 7 on a 4 foot dish. (Here in Seattle what are the sizes of the elliptical dishes 21 by 22 inches? (smile)

Something tells me, maybe it's the projected footprint map. That I may need a much larger dish if I am to continue to get programming from Echo* 14

It's going to be frustrating if I loose the signals at 119 W. Oh well, I have a close meshed 13 footer (C band almost Ku band) that I could always try attaching a hot DISH LNB to, and point towards 119 degrees West.

I knew there was a reason I didn't take that Big ugly dish down.

 

[harshness]

Is this explanation correct?

For the most part. It is awfully long winded and you probably reversed "centripetal" and "centrifugal" at least once.

Gravity exerts centripetal force and modifies the satellite's path into a sort of constant NASCAR turn. There is no centrifugal force involved. The satellite just wants to go straight and gravity keeps pulling towards the center of the earth.

 

[dangue]

Gravity exerts centripetal force and modifies the satellite's path into a sort of constant NASCAR turn. There is no centrifugal force involved. The satellite just wants to go straight and gravity keeps pulling towards the center of the earth.

This really makes me want to brush up on my Physics knowledge.

 

[Fitzie]

For the most part. It is awfully long winded and you probably reversed "centripetal" and "centrifugal" at least once.

Gravity exerts centripetal force and modifies the satellite's path into a sort of constant NASCAR turn. There is no centrifugal force involved. The satellite just wants to go straight and gravity keeps pulling towards the center of the earth.

Arthur C. Clarke published an article in the October, 1945 issue of Wireless World describing the current satellite system we have. (Article is titled "Extra Terrestrial Relays." Found using Google search.)

Mr. Clarke notes in his article that a geosynchronous orbit exists at 22,237 miles above the earth's equator, and that an orbit inside that level would require some eastern velocity to counter the effects of gravity.

In the article Mr. Clarke projects that land based receivers could be as little as 12 inches in diameter, and that directional broadcasting would require as little as 10 watts. He notes solar power could be used for broadcasting. (While the satellite communications system was Mr. Clarke's idea, he credits the Germans with development of the V2 rocket and their concept of space stations as part of his inspiration.) Our current system is almost exactly as Mr. Clarke projected, including using multi-stage rocket power to reach the orbital location.

It's an interesting read.

Regards,
Fitzie

 

[nelson61]

Late Thursday night TLE

118 km below geo
1.51 degrees day/east
should arrive at 118.9W Saturday AM

 

[desifan]

For the most part. It is awfully long winded and you probably reversed "centripetal" and "centrifugal" at least once.

Gravity exerts centripetal force and modifies the satellite's path into a sort of constant NASCAR turn. There is no centrifugal force involved. The satellite just wants to go straight and gravity keeps pulling towards the center of the earth.

Hi Harshness , You are right. I reversed centripetal and centrifugal force once, towards the end. The centrifugal force I was referring to is the reason the body wants to keep going straight.

 

[nelson61]

< 1 degree from home.

record your E7 strengths if you want to do a comparison

 

[nelson61]

~11:30 PM MT Friday TLE

118 km below geo
1.51 degrees/day east

Final maneuvers in progress

They will be moving up to geo right now with location very close to station.

 

[neljtorres]

Thanks Nelson 61!

ECHOSTAR 14 Satellite details 2010-010A NORAD 36499

Thanks Nelson61 from NelsonJ

Echostar 14

Sat, 15 May 2010 16:15:41 UTC
Latitude: 0.04°
Longitude: -118.73°
Right Ascension: 23h 24m 45s
Declination: -3° 58' 46''
Azimuth: 256.47°
Elevation: +27.44°
Altitude [km]: 35687.6
Altitude [miles]: 22175

Echostar 7
Sat, 15 May 2010 16:17:26 UTC
Latitude: 0.02°
Longitude: -118.82°
Right Ascension: 23h 26m 12s
Declination: -3° 59' 44''
Azimuth: 256.49°
Elevation: +27.36°
Altitude [km]: 35

 

[long_time_DNC]

I'll also probably do another thread that is typical of a new spotbeam satellite coming online. Posting your 1-5 transponders (spots) and 2 left hand and 2 right hand CONUS transponders.

But I do agree...copy your 119 transponder strengths down now(don't worry about 1,3,5,7,9 as those are spots right now).

Copied down my numbers for 119 last night. Most are in the upper 50s and low 60s. One was in the mid 40s.

It'll be interesting to see what the new bird throws our way. What TPs on 119 should we specifically looking at for comparison purposes?

 

[whatchel1]

brakes applied

Thanks Nelson 61!

ECHOSTAR 14 Satellite details 2010-010A NORAD 36499

Thanks Nelson61 from NelsonJ

Echostar 14

Sat, 15 May 2010 16:15:41 UTC
Latitude: 0.04°
Longitude: -118.73°
Right Ascension: 23h 24m 45s
Declination: -3° 58' 46''
Azimuth: 256.47°
Elevation: +27.44°
Altitude [km]: 35687.6
Altitude [miles]: 22175

Echostar 7
Sat, 15 May 2010 16:17:26 UTC
Latitude: 0.02°
Longitude: -118.82°
Right Ascension: 23h 26m 12s
Declination: -3° 59' 44''
Azimuth: 256.49°
Elevation: +27.36°
Altitude [km]: 35

Looks like they are putting on the brakes.

 

[AKGolf]

< 1 degree from home.

record your E7 strengths if you want to do a comparison

From Anchorage with a 722:

01 - 00
02 - 48
03 - 00
04 - 51
05 - 00
06 - 57
07 - 00
08 - 58
09 - 84
10 - 54
11 - 59
12 - 59
13 - 60
14 - 54
15 - 58
16 - 57
17 - 57
18 - 52
19 - 58
20 - 53
21 - 58

 

[96corvette]

North Louisiana with 722



01 - 00
02 - 60
03 - 00
04 - 66
05 - 37
06 - 72
07 - 36
08 - 73
09 - 00
10 - 71
11 - 78
12 - 75
13 - 78
14 - 71
15 - 76
16 - 76
17 - 76
18 - 70
19 - 76
20 - 72
21 - 78

 

[neljtorres]

Bayamon, Puerto Rico 4.5' Dish
Note it's raining now
211k vip
Signal Meter has been modified

01 - 00
02 - 19
03 - 00
04 - 19
06 - 30
08 - 22
09 - 00
10 - 21
11 - 32
12 - 28
13 - 32
14 - 25
15 - 30
16 - 29
17 - 29
18 - 25
19 - 28
20 - 25
21 - 32

 

[long_time_DNC]

As of 9pm last night:

1 - 95
2 - 48
3 - 65
4 - 54
6 - 62
8 - 62
10 - 60
11 - 61
12 - 63
13 - 60
14 - 59
15 - 59
16 - 62
17 - 58
18 - 57
19 - 60
20 - 59
21 - 61

 

[cj9788]

From Jacksonville Fl, using a one meter dish on my 625.

01 - 29
02 - 75
03 - 25
04 - 76
05 - 62
06 - 80
07 - 59
08 - 87
09 - 0
10 - 92
11 - 95
12 - 93
13 - 93
14 - 87
15 - 89
16 - 95
17 - 88
18 - 84
19 - 89
20 - 89
21- 90

 

[nelson61]

this is going to be interesting! a nice set of reference data to compare when it lites up

 

[HDRoberts]

Well, since everyone else is posting theirs.

622, Dish 1000.2, clear day, 11AM this morning:

01 - 40 (Spot)
02 - 66
03 - 36 (Spot)
04 - 69
05 - 45 (Spot)
06 - 74
07 - 49 (Spot)
08 - 76
09 - 0 (No signal, bit of course, this is a spotbeam TP)
10 - 78
11 - 84
12 - 81
13 - 82
14 - 77
15 - 80
16 - 82
17 - 80
18 - 75
19 - 80
20 - 78
21 - 82

 

[harshness]

The centrifugal force I was referring to is the reason the body wants to keep going straight.

There's no force at all required to keep the satellite going straight. That's all it really wants to do.

Centrifugal force very specifically acts perpendicular to the orbit to accelerate a body away from the centroid of the orbit. Inertia is what keeps something moving in a straight line.

Centripetal force as a result of gravity is the driver for a orbiting body to orbit.