EchoStar 23 will be 67.1°W.
Downlink: 11.45...11.7 & 11.7...12.2 GHz.
TT&C: 11443.0, 11443.5, 11446.5, 11447.0 MHz.
Apologies, I mixed up some info, the above mentioned Downlink & TT&C are NOT of EchoStar 23, but of Intelsat 32e/Sky-B1 launched previously.
Going through various exhibits at fcc.gov however, I still can not be sure of the first whereabouts of EchoStar 23. Most likely scheme seems:
(2) After launch and orbit-raising maneuvers, EchoStar 23 will be temporarily located 67.1º W.L., where IOT will commence for approximately 30 days.
The satellite will then be moved to 86.4° W.L. for 90 days.
(3) Following the temporary operations at 86.4 º WL EchoStar 23 will be moved to its assigned orbital location at 45° W.L.
Alternative scheme:
(2) After launch and orbit-raising maneuvers, EchoStar 23 will be temporarily located at 86.4° W.L. for approximately 90 days.
(3) Following temporary operations at 86.4º W.L., EchoStar 23 will be moved to its assigned orbital location at 44.9° W.L., where in-orbit testing (“IOT”) will commence for approximately 30 days.
So
45°W is the final location (44.9°W is also mentioned and is more likely correct, since Intelsat 14 is already at 45.0°W)
EchoStar 23 has the typical BSS downlink range: 12.2...12.7 GHz circular pol.
TT&C on 12207 and 12208 MHz.