Echostar 15 launch update

[TNGTony]

Quote:
Originally Posted by Ghpr13

I'm still learning all of this so please forgive my naiveness, but what does GEO stand for?
Thanks,
Ghpr13

Geo-synchronous orbit. That's 22,300 miles above the earth.

Point of order... Geostationary, not geosynchronous.

A geostationary satellite appears to stay in the same spot in the sky and has a specific circular orbit about 22,300 miles above the Earth's equator.

A geosynchronous satellite has an orbit with a period of about 24 hours, but it appears to do a figure 8 in the sky over that period of time. The orbit altitude apogee/perigee can vary widely.

A geostationary orbit is geosynchronous. A geosynchronous orbit is not necessarily geostationary.

Sirius XM satellites are geosynchronous.
Dish/DirecTV satellites are geostationary.

http://www3.sympatico.ca/n.rieck/images/sirius-xm-orbital-animations.gif

 

[Ghpr13]

Point of order... Geostationary, not geosynchronous.

A geostationary satellite appears to stay in the same spot in the sky and has a specific circular orbit about 22,300 miles above the Earth's equator.

A geosynchronous satellite has an orbit with a period of about 24 hours, but it appears to do a figure 8 in the sky over that period of time. The orbit altitude apogee/perigee can vary widely.

A geostationary orbit is geosynchronous. A geosynchronous orbit is not necessarily geostationary.

Sirius XM satellites are geosynchronous.
Dish/DirecTV satellites are geostationary.

http://www3.sympatico.ca/n.rieck/images/sirius-xm-orbital-animations.gif

TNGTony,
Thank you for that explanation between the two.

Whatchel1,
Your help was appreciated, but TNGTony had color pictures and movement and was sooo cool!

Ghpr13

 

[Voyager6]

61.5 SS 7/21/2010 3:30PM
Partly cloudy skies
Dish 500 single LNBF with I-adapter
VIP 622

tp 01 8 spotbeam
tp 02 47
tp 03 0
tp 04 61
tp 05 62 spotbeam
tp 06 0
tp 07 0
tp 08 57
tp 09 71 spotbeam
tp 10 50
tp 11 070 spotbeam
tp 12 0
tp 13 60 spotbeam
tp 14 70
tp 15 0
tp 16 0
tp 17 0
tp 18 0
tp 19 45
tp 20 47
tp 21 44
tp 22 50
tp 23 0
tp 24 57
tp 25 53
tp 26 0
tp 27 48
tp 28 0
tp 29 58
tp 30 52
tp 31 50
tp 32 0

 

[flampher]

I read at another site (sorry) that this vehicles orbit is strange, and getting sranger "every parameter of the orbit is worse than the one before" Is everything still ok? Or does it just need another correction. Just call me paranoid.

 

[HDRoberts]

I read at another site (sorry) that this vehicles orbit is strange, and getting sranger "every parameter of the orbit is worse than the one before" Is everything still ok? Or does it just need another correction. Just call me paranoid.

Not quite perfect. It is at 61.49, which is just off it's 61.55 +/- 0.05 operating range. But it is pretty close.

Compare the following

Parameter - E14 - E15
Eccentricity: 0.0002854 - 0.0002837
Inclination: 0.0085° - 0.0684°
Perigee height: 35774 km - 35773 km
Apogee height: 35798 km - 35797 km


Pretty darn close to an operating sat, so I wouldn't worry about it.

 

[Ghpr13]

My Stats

OK,
​

I think I did this right...
VIP755k
61.5

TP Signal
1 16
2 39
3 16
5 0
6 0
7 0
8 55
9 0
10 41
11 0
12 0
13 16
14 62
15 18
16 0
17 0
​

18 0
19 53
20 47
21 45
22 43
23 47
24 50
25 47
26 0
27 50
28 43
29 52
30 45
31 51
32 0

Can one of you seasoned members let me know how my signal strength looks...are these acceptable numbers for 61.5?
Thanks,
Ghpr13

 

[Matt9876]

Ghpr13

Your numbers are low,you need an alignment or a tree is getting in the way etc..

a new bird is on the way for 61.5 but you need a little help on your end.

Transponder 14 should be 70-75

 

[lineman20109]

Can one of you seasoned members let me know how my signal strength looks...are these acceptable numbers for 61.5?​

Thanks,
Ghpr13

Other than the spot beams, your numbers aren't too far off from what I have, and I rarely have trouble with 61.5. My guess is the numbers are fine. That is my UNseasoned opinion.

 

[Fitzie]

I agree with lineman20109 regarding the numbers, they are very comparable to what I have and except for when it rains I have no problems.

Regards,
Fitzie

 

[ljdonato]

From Puerto Rico, six-footer, partly cloudy, 6:30pm

TP Signal
1 0
2 25
3 0
4 25
5 0
6 0
7 0
8 41
9 0
10 24
11 0
12 0
13 0
14 48
15 0
16 0
17 0
18 0
19 12
20 29
21 10
22 26
23 0
24 5
25 32
26 0
27 37
28 0
29 40
30 28
31 37
32 0

It gets a little better with clear skies and around 9pm... I have recorded the signals around the day (for months), and 61.5 has always varied, like if it was looping "up and down" in the sky, 9pm to midnight signal is always great, 12 to 2am not so good, 3 to 5am good, 6 to 8am not too good, then back again from 9am to noon, etc

Anxiously waiting 8/3

 

[Ghpr13]

Ghpr13

Your numbers are low,you need an alignment or a tree is getting in the way etc..

a new bird is on the way for 61.5 but you need a little help on your end.

Transponder 14 should be 70-75

Other than the spot beams, your numbers aren't too far off from what I have, and I rarely have trouble with 61.5. My guess is the numbers are fine. That is my UNseasoned opinion.

I agree with lineman20109 regarding the numbers, they are very comparable to what I have and except for when it rains I have no problems.

Regards,
Fitzie

Thanks to all 3 of you for your replies. When I took my readings it was bright, Sunny, and hot out...Since Dish put my dish on my roof, the rain fade has cut down pretty much.

Ghpr13

 

[bobvick]

Signals on 61.5 from 722K, taken on July 24, 2010. Weather, sunny and hot.

TP Signal
1 0
2 40
3 0
5 77
6 0
7 0
8 57
9 68
10 42
11 66
12 0
13 90
14 64
15 0
16 0
17 0
​

18 0
19 53
20 50
21 42
22 43
23 0
24 53
25 48
26 0
27 45
28 42
29 53
30 46
31 53
32 0

 

[rdavidowski]

Signal 61.5 with 8' footer and a 722K, July 24, 2010 form Puerto Rico, Weather Clear Sky

01 0
02 39
03 0
04 25
05 0
06 0
07 0
08 52
09 0
10 40
11 0
12 0
13 0
14 62
15 0
16 0
17 0
18 0
19 37
20 39
21 31
22 43
23 0
24 30
25 45
26 0
27 40
28 0
29 52
30 45
31 39
32 0

 

[whatchel1]

Try again.

Point of order... Geostationary, not geosynchronous.

A geostationary satellite appears to stay in the same spot in the sky and has a specific circular orbit about 22,300 miles above the Earth's equator.

A geosynchronous satellite has an orbit with a period of about 24 hours, but it appears to do a figure 8 in the sky over that period of time. The orbit altitude apogee/perigee can vary widely.

A geostationary orbit is geosynchronous. A geosynchronous orbit is not necessarily geostationary.

Sirius XM satellites are geosynchronous.
Dish/DirecTV satellites are geostationary.

http://www3.sympatico.ca/n.rieck/images/sirius-xm-orbital-animations.gif

Geosynchronous: of or pertaining to a satellite traveling in an orbit 22,300 miles (35,900 km) above the earth's equator: at this altitude, the satellite's period of rotation, 24 hours, matches the earth's and the satellite always remains in the same spot over the earth: geostationary orbit.

Geostationary: of or pertaining to a satellite traveling in an orbit 22,300 miles (35,900 km) above the earth's equator: at this altitude, the satellite's period of rotation, 24 hours, matches the earth's and the satellite always remains in the same spot over the earth: geostationary orbit.

Looks like the same definition to me taken directly from the dictionary, my friend. The words are interchangeable. Now if you want to rewrite the dictionary have at it.
BTW XM3 is at 85.1W. Sirius FM5 is at 96 W. TNGTony I was putting C-band sat systems when HBO was still in the clear. I've put in international sat dishes to pick up Russian TV at 5 degrees above the horizon, so I know satellite. :up BTW I really liked your pretty picture (the 3 sats in the figure 8 are LEO birds) that's why I included it in the reply.

 

[elTiTANio]

date: 7/25/10 
4am dry night, heavy scattered clouds
six footer on 61.5 /vip211

location: Caguas, Puerto Rico

Tp Rx
1  00
2  31
3  00
4  34
5  00
6  00
7  00
8  48
9  00
10 32
11 00
12 00
13 00
14 56
15 00
16 00
17 00
18 00
19 16
20 41
21 13
22 35
23 00
24 12
25 38
26 00
27 28
28 00
29 43
30 35
31 40
32 00

 

[tjachem]

Geosynchronous: of or pertaining to a satellite traveling in an orbit 22,300 miles (35,900 km) above the earth's equator: at this altitude, the satellite's period of rotation, 24 hours, matches the earth's and the satellite always remains in the same spot over the earth: geostationary orbit.

Geostationary: of or pertaining to a satellite traveling in an orbit 22,300 miles (35,900 km) above the earth's equator: at this altitude, the satellite's period of rotation, 24 hours, matches the earth's and the satellite always remains in the same spot over the earth: geostationary orbit.

Looks like the same definition to me taken directly from the dictionary, my friend. The words are interchangeable. Now if you want to rewrite the dictionary have at it.
BTW XM3 is at 85.1W. Sirius FM5 is at 96 W. TNGTony I was putting C-band sat systems when HBO was still in the clear. I've put in international sat dishes to pick up Russian TV at 5 degrees above the horizon, so I know satellite. :up BTW I really liked your pretty picture (the 3 sats in the figure 8 are LEO birds) that's why I included it in the reply.

See CelesTrak: "Basics of the Geostationary Orbit"

The defnition of geostationary and geosynchronous may be the same in the dictionary, but there is a difference. Geosynchronous is an elliptical orbit and geostationary is a circular orbit resulting in different ground tracks.

 

[whatchel1]

cool

See CelesTrak: "Basics of the Geostationary Orbit"

The defnition of geostationary and geosynchronous may be the same in the dictionary, but there is a difference. Geosynchronous is an elliptical orbit and geostationary is a circular orbit resulting in different ground tracks.

I stand corrected. :up

 

[navychop]

They may be the same in the common vernacular, but certainly not in space science.

 

[barnie]

Shelburne, VT mostly Sunny earlier today, 722, 110+119+118, 61.5

tp 01 48 spotbeam
tp 02 37
tp 03 101 NNA
tp 04 55
tp 05 100 spotbeam
tp 06 0
tp 07 53 spotbeam
tp 08 57
tp 09 75 spotbeam
tp 10 37
tp 11 62 spotbeam
tp 12 32
tp 13 70 spotbeam
tp 14 60
tp 15 49 spotbeam
tp 16 0
tp 17 0
tp 18 0
tp 19 50
tp 20 46
tp 21 41
tp 22 39
tp 23 0
tp 24 53
tp 25 41
tp 26 45
tp 27 47
tp 28 36
tp 29 50
tp 30 38
tp 31 56

 

[Ghpr13]

What's the latest on Echostar 15? Is all going well? Where are we in it's timeline for being on-line and broadcasting?
I don't know about other members here, but watching the launch and seeing some background on these satellites I fine truly amazing! Maybe 'cause I'm a child of the '60s, but I'd always been fascinated by what we can do in space travel, satellites, etc.

Ghpr13