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Echostar 14 - At 119 and in service 5/19 at 3:00am ET

Discussion in 'DISH™ High Definition Discussion' started by bluegras, Mar 20, 2010.

  1. P Smith

    P Smith Mr. FixAnything

    21,580
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    Jul 25, 2002
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    I keep TLE#095...097 in the table for reference - in May apogee/perigee was nominal.
     
  2. James Long

    James Long Ready for Uplink! Staff Member Super Moderator DBSTalk Club

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    Epoch Tue May 18 02:08:15 EDT - #95
    Apogee 35787.77 Perigee 35778.84 Gap 8.93
    Average 3.14 below Nominal 35786.44

    Epoch Tue May 18 13:41:47 EDT - #96
    Apogee 35786.03 Perigee 35782.28 Gap 3.75
    Average 2.28 below Nominal 35786.44

    Epoch Tue May 18 20:41:31 EDT - #97
    Apogee 35785.98 Perigee 35782.51 Gap 3.47
    Average 2.19 below Nominal 35786.44

    A smaller gap but a lower orbit. I'd rather see a correct average altitude than a tight gap on the wrong altitude.
    30 is bigger than the other recent DISH satellites.
     
  3. P Smith

    P Smith Mr. FixAnything

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    But, the 35786 km is the GSO altitude. So those three TLEs did shows perfect E-14 position in middle of May, same as I see it for DTV satellites for years.
    And answering to the phrases "A smaller gap but a lower orbit. I'd rather see a correct average altitude than a tight gap on the wrong altitude." - it's impossible for GSO satellite has "wrong altitude" - it would start drifting away. Sorry, but orbital mechanics doesn't follow your or mine preferences to "see". :)
     
  4. James Long

    James Long Ready for Uplink! Staff Member Super Moderator DBSTalk Club

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    OK, riddle me this ...
    If 35786 is GEO (it is) note only the Apogee in the records shown. The Perigee is lower. An on target average IS good. A little too close during part of the orbit, a little too far during part of the orbit. But more on orbit than when the gap is not centered on GEO.

    Your own numbers show this. The satellite took six seconds less to orbit when the altitude wasn't centered on GEO. Now the orbit is closer to the number of seconds needed to stay geostationary. Not perfect position but low. "Perfect position" would place Apogee above GEO the same distance as Perigee was below GEO.

    You're right. A satellite with a wrong altitude would start drifting away. That is exactly what it was doing during 95-97, drifting away. Not by much, but it was drifting.
     
  5. P Smith

    P Smith Mr. FixAnything

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    My meat is with the gap excessive value - on any GSO [circular] orbit it should be lower then 30 km especially working in a cluster. It is still deviation of the orbit what will require more fuel to keep proper orientation of antenna's farm and separate movement of solar panels.
     
  6. James Long

    James Long Ready for Uplink! Staff Member Super Moderator DBSTalk Club

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    Epoch Mon Jul 19 02:35:25 EDT
    Code:
    ECHOSTAR 14
    1 36499U 10010A   10200.27459728 -.00000008  00000-0  00000+0 0  1327
    2 36499 000.0038 326.7883 0002865 138.4398 171.6586 01.00271773  1258
    Time elapsed since epoch: 15:37:41 (Calculations done at epoch unless noted)

    Apogee 35798.54 Perigee 35774.38 Gap 24.16
    Average 0.02 above Nominal 35786.44

    Satellite Longitude 118.9172 West (at Epoch)
    Average Driftrate 0.0003 deg/day West
     
  7. P Smith

    P Smith Mr. FixAnything

    21,580
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    Jul 25, 2002
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    TLE #132.
    Code:
    [B]
     #   Date Time GMT Perigee Apogee Long      Lat   Inclin Gap Ch-Hrs Eccentric Revs/day[/B]
    ...
    096 05-18 17:41:47 35782x35786 118.8482°W 0.0045°N 0.017°  4  +12H 0.0000445 1.00279978 23h 55m 58s (1435.97 min)
    097 05-19 00:41:31 35783x35786 118.8308°W 0.0168°N 0.015°  3   +7H 0.0000411 1.00279662 23h 55m 59s (1435.98 min)
    ...
    121 07-02 12:58:45 35775x35798 118.9249°W 0.0015°N 0.004° 23  +69H 0.0002755 1.00272627 23h 56m 05s (1436.8 min)
    122 07-03 06:12:01 35775x35798 118.9090°W 0.0237°N 0.010° 23  +17H 0.0002757 1.00272776 23h 56m 04s (1436.7 min)
    123 07-04 06:42:49 35775x35798 118.8767°W 0.0235°S 0.010° 23  +24H 0.0002725 1.00272902 23h 56m 04s (1436.7 min)
    124 07-05 10:09:39 35774x35799 118.9015°W 0.0061°N 0.006° 25  +27H 0.0002952 1.00273323 23h 56m 04s (1436.7 min)
    125 07-06 05:52:44 35773x35799 118.8863°W 0.0248°N 0.005° 26  +27H 0.0003144 1.00273418 23h 56m 04s (1436.7 min)
    126 07-07 11:27:17 35774x35799 118.8695°W 0.0123°S 0.008° 25  +29H 0.0002975 1.00272665 23h 56m 05s (1436.8 min)
    127 07-09 03:13:04 35775x35798 118.9132°W 0.0116°N 0.006° 23  +40H 0.0002793 1.00272629 23h 56m 05s (1436.8 min)
    128 07-09 10:30:12 35775x35798 118.8605°W 0.0041°S 0.006° 23   +7H 0.0002793 1.00272595 23h 56m 05s (1436.8 min)
    129 07-13 11:50:06 35775x35798 118.9175°W 0.0201°N 0.018° 23  +97H 0.0002744 1.00271743 23h 56m 05s (1436.8 min)
    130 07-15 03:04:47 35775x35798 118.9232°W 0.0005°N 0.004° 23  +39H 0.0002724 1.00271941 23h 56m 05s (1436.8 min)
    131 07-16 15:06:19 35771x35802 118.8277°W 0.0070°S 0.003° 31  +36H 0.0003622 1.00271853 23h 56m 05s (1436.8 min)
    132 07-19 06:35:25 35775x35799 118.8844°W 0.0052°S 0.004° 24  +63H 0.0002865 1.00271773 23h 56m 05s (1436.8 min)
    
    Target: 
    [LIST]
    [*]118.9°W  (+/- 0.025°) 0.0°N (+/- 0.025°)
    [*]35,786 km
    [*]gap: +/- 5Km
    [*]eccentricity: 0.0000xxx
    [*]revs per day: 1.00279xxx
    [/LIST]
    
    Little bit better, but still little off.
     
  8. P Smith

    P Smith Mr. FixAnything

    21,580
    142
    Jul 25, 2002
    W.Mdtrn Sea
    TLE #133.
    Code:
    [B]
     #   Date Time GMT Perigee Apogee Long      Lat   Inclin Gap Ch-Hrs Eccentric Revs/day[/B]
    ...
    096 05-18 17:41:47 35782x35786 118.8482°W 0.0045°N 0.017°  4  +12H 0.0000445 1.00279978 23h 55m 58s (1435.97 min)
    097 05-19 00:41:31 35783x35786 118.8308°W 0.0168°N 0.015°  3   +7H 0.0000411 1.00279662 23h 55m 59s (1435.98 min)
    ...
    121 07-02 12:58:45 35775x35798 118.9249°W 0.0015°N 0.004° 23  +69H 0.0002755 1.00272627 23h 56m 05s (1436.8 min)
    122 07-03 06:12:01 35775x35798 118.9090°W 0.0237°N 0.010° 23  +17H 0.0002757 1.00272776 23h 56m 04s (1436.7 min)
    123 07-04 06:42:49 35775x35798 118.8767°W 0.0235°S 0.010° 23  +24H 0.0002725 1.00272902 23h 56m 04s (1436.7 min)
    124 07-05 10:09:39 35774x35799 118.9015°W 0.0061°N 0.006° 25  +27H 0.0002952 1.00273323 23h 56m 04s (1436.7 min)
    125 07-06 05:52:44 35773x35799 118.8863°W 0.0248°N 0.005° 26  +27H 0.0003144 1.00273418 23h 56m 04s (1436.7 min)
    126 07-07 11:27:17 35774x35799 118.8695°W 0.0123°S 0.008° 25  +29H 0.0002975 1.00272665 23h 56m 05s (1436.8 min)
    127 07-09 03:13:04 35775x35798 118.9132°W 0.0116°N 0.006° 23  +40H 0.0002793 1.00272629 23h 56m 05s (1436.8 min)
    128 07-09 10:30:12 35775x35798 118.8605°W 0.0041°S 0.006° 23   +7H 0.0002793 1.00272595 23h 56m 05s (1436.8 min)
    129 07-13 11:50:06 35775x35798 118.9175°W 0.0201°N 0.018° 23  +97H 0.0002744 1.00271743 23h 56m 05s (1436.8 min)
    130 07-15 03:04:47 35775x35798 118.9232°W 0.0005°N 0.004° 23  +39H 0.0002724 1.00271941 23h 56m 05s (1436.8 min)
    131 07-16 15:06:19 35771x35802 118.8277°W 0.0070°S 0.003° 31  +36H 0.0003622 1.00271853 23h 56m 05s (1436.8 min)
    132 07-19 06:35:25 35775x35799 118.8844°W 0.0052°S 0.004° 24  +63H 0.0002865 1.00271773 23h 56m 05s (1436.8 min)
    133 07-20 05:40:00 35774x35799 118.9068°W 0.0251°N 0.007° 25  +23H 0.0002904 1.00272066 23h 56m 05s (1436.8 min)
    
    Target: 
    [LIST]
    [*]118.9°W  (+/- 0.025°) 0.0°N (+/- 0.025°)
    [*]35,786 km
    [*]gap: +/- 5Km
    [*]eccentricity: 0.0000xxx
    [*]revs per day: 1.00279xxx
    [/LIST]
    
    Seems to me they spare the fuel, don't want hold the altitude tight...
     
  9. James Long

    James Long Ready for Uplink! Staff Member Super Moderator DBSTalk Club

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    Epoch Tue Jul 20 10:32:57 EDT
    Code:
    ECHOSTAR 14
    1 36499U 10010A   10201.60621707 -.00000009 +00000-0 +00000-0 0 01347
    2 36499 000.0078 023.1693 0002907 082.5421 291.8725 01.00272091001278
    Time elapsed since epoch: 30:58:21 (Calculations done at epoch unless noted)

    Apogee 35798.63 Perigee 35774.11 Gap 24.51
    Average 0.07 below Nominal 35786.44
     
  10. P Smith

    P Smith Mr. FixAnything

    21,580
    142
    Jul 25, 2002
    W.Mdtrn Sea
    TLE #134.
    Code:
    [B]
     #   Date Time GMT Perigee Apogee Long      Lat   Inclin Gap Ch-Hrs Eccentric Revs/day[/B]
    ...
    096 05-18 17:41:47 35782x35786 118.8482°W 0.0045°N 0.017°  4  +12H 0.0000445 1.00279978 23h 55m 58s (1435.97 min)
    097 05-19 00:41:31 35783x35786 118.8308°W 0.0168°N 0.015°  3   +7H 0.0000411 1.00279662 23h 55m 59s (1435.98 min)
    ...
    121 07-02 12:58:45 35775x35798 118.9249°W 0.0015°N 0.004° 23  +69H 0.0002755 1.00272627 23h 56m 05s (1436.8 min)
    122 07-03 06:12:01 35775x35798 118.9090°W 0.0237°N 0.010° 23  +17H 0.0002757 1.00272776 23h 56m 04s (1436.7 min)
    123 07-04 06:42:49 35775x35798 118.8767°W 0.0235°S 0.010° 23  +24H 0.0002725 1.00272902 23h 56m 04s (1436.7 min)
    124 07-05 10:09:39 35774x35799 118.9015°W 0.0061°N 0.006° 25  +27H 0.0002952 1.00273323 23h 56m 04s (1436.7 min)
    125 07-06 05:52:44 35773x35799 118.8863°W 0.0248°N 0.005° 26  +27H 0.0003144 1.00273418 23h 56m 04s (1436.7 min)
    126 07-07 11:27:17 35774x35799 118.8695°W 0.0123°S 0.008° 25  +29H 0.0002975 1.00272665 23h 56m 05s (1436.8 min)
    127 07-09 03:13:04 35775x35798 118.9132°W 0.0116°N 0.006° 23  +40H 0.0002793 1.00272629 23h 56m 05s (1436.8 min)
    128 07-09 10:30:12 35775x35798 118.8605°W 0.0041°S 0.006° 23   +7H 0.0002793 1.00272595 23h 56m 05s (1436.8 min)
    129 07-13 11:50:06 35775x35798 118.9175°W 0.0201°N 0.018° 23  +97H 0.0002744 1.00271743 23h 56m 05s (1436.8 min)
    130 07-15 03:04:47 35775x35798 118.9232°W 0.0005°N 0.004° 23  +39H 0.0002724 1.00271941 23h 56m 05s (1436.8 min)
    131 07-16 15:06:19 35771x35802 118.8277°W 0.0070°S 0.003° 31  +36H 0.0003622 1.00271853 23h 56m 05s (1436.8 min)
    132 07-19 06:35:25 35775x35799 118.8844°W 0.0052°S 0.004° 24  +63H 0.0002865 1.00271773 23h 56m 05s (1436.8 min)
    133 07-20 05:40:00 35774x35799 118.9068°W 0.0251°N 0.007° 25  +23H 0.0002904 1.00272066 23h 56m 05s (1436.8 min)
    134 07-20 14:32:57 35774x35799 118.8653°W 0.0069°N 0.008° 25   +9H 0.0002907 1.00272091 23h 56m 05s (1436.8 min)
    
    Target: 
    [LIST]
    [*]118.9°W  (+/- 0.025°) 0.0°N (+/- 0.025°)
    [*]35,786 km
    [*]gap: +/- 5Km
    [*]eccentricity: 0.0000xxx
    [*]revs per day: 1.00279xxx
    [/LIST]
    
    After month waiting for better 'housekeeping' I think it's time to stop watching E-14's TLEs.
    It will float in wide 'box' by unknown to us reasons. Perhaps next shareholder's meeting will reveal the sat's health.
     
  11. James Long

    James Long Ready for Uplink! Staff Member Super Moderator DBSTalk Club

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    It looks like DISH is happy with the behavior. And the satellite is working for millions of DISH customers aimed at 119.

    I agree, watching the quarterlies will probably be the only important word IF there is anything "wrong" with it.
     
  12. James Long

    James Long Ready for Uplink! Staff Member Super Moderator DBSTalk Club

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    Posted due to an outage from 119 first reported 90 minutes ago.

    Epoch Fri Jul 23 23:48:56 EDT
    Code:
    ECHOSTAR 14
    1 36499U 10010A   10205.15899209  .00000000  00000-0  10000-3 0  1372
    2 36499 000.0072 209.3945 0003034 251.9172 138.8228 01.00271792  1317
    Apogee 35799.25 Perigee 35773.66 Gap 25.59 Average 0.01 above Nominal

    Satellite Longitude 118.8538 West (at Epoch)
    Satellite Longitude 118.8545 West (at 05:05:49 EDT Tuesday using this TLE)
    Average Driftrate 0.0002 deg/day West

    Epoch Mon Jul 26 04:27:17 EDT
    Code:
    ECHOSTAR 14
    1 36499U 10010A   10207.35229075 -.00000009  00000-0  00000+0 0  1380
    2 36499 000.0044 017.3983 0003152 089.9656 204.4911 01.00273237  1328
    Time elapsed since epoch: 00:36:11 (Calculations done at epoch unless noted)

    Apogee 35799.34 Perigee 35772.76 Gap 26.58 Average 0.39 below Nominal
    Satellite period,TC 23:56:04.57 (Nominal 23:56:04.09)

    Satellite Longitude 118.9015 West (at Epoch)
    Satellite Longitude 118.8964 West (at 05:03:29 EDT Tuesday using this TLE)
    Average Driftrate 0.0050 deg/day East
     
  13. P Smith

    P Smith Mr. FixAnything

    21,580
    142
    Jul 25, 2002
    W.Mdtrn Sea
    TLE #137,138.
    Code:
    [B]
     #   Date Time GMT Perigee Apogee Long      Lat   Inclin Gap Ch-Hrs Eccentric Revs/day[/B]
    ...
    137 07-24 03:48:56 35774x35799 118.8575°W 0.0041°S 0.007° 25   +xH 0.0003034 1.00271792 23h 56m 05s (1436.8 min)
    138 07-26 08:27:17 35773x35799 118.8863°W 0.0095°N 0.004° 26  +53H 0.0003152 1.00273237 23h 56m 04s (1436.7 min)
    
    Target: 
    [LIST]
    [*]118.9°W  (+/- 0.025°) 0.0°N (+/- 0.025°)
    [*]35,786 km
    [*]gap: +/- 5Km
    [*]eccentricity: 0.0000xxx
    [*]revs per day: 1.00279xxx
    [/LIST]
    
    Since it start his broad movements, I feel uncomfortable with it ...
     

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