Milcom Monitoring Post Profiles
- What are Emergency Action Messages (EAM)?
- Ron Perron Mil/Gov Call Sign - Update 1 June 2018
- UFO Milsat Program
- Fleetsatcom System
- UHF 225-380 MHz Milcom Spectrum Holes: Updated 24 July 2019
- Civilian Air Cargo/Airline/Military Call Signs
- Intl HF Aero Civ/Gov/Mil Frequency List
- USN Aircraft Modex Numbers
- University of Twente Wide Band WebSDR Netherlands
- U.S. Military ALE Addresses
- DoD Air Refueling Frequencies - Update 15 Jul 2016
- COTHEN HF Network – Update 2 April 2020
- Monitoring the Civil Air Patrol Auxiliary Update 10 Sep 2016
- US Coast Guard Asset Guide - Update 23 April 2019
- The Spectrum Monitor e-Zine Milcom Column Index - Update 7 Oct 2019
- The Milcom MT Files (1998-2013) Articles Index
Wednesday, March 30, 2011
Amateur Skywatchers Spot Secret Space Plane
After an intense search, a crew of amateur satellite sleuths has spotted the U.S. Air Force's second X-37B space plane – a robotic spacecraft that launched into orbit March 5.
The mission of the unmanned X-37B space plane, which is known officially as the Orbital Test Vehicle 2 (OTV-2), is shrouded in secrecy. The Boeing-built spacecraft is believed to be involved in reconnaissance — perhaps testing powerful sensors for a new generation of spy satellites. It looks much like a small version of NASA's space shuttles and blasted off from the Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida.
While its mission is secret, the OTV-2 itself has attracted the eyes of dedicated skywatchers hoping to spot it in orbit just as they saw its predecessor – the first X-37B spacecraft, OTV-1 – during the OTV-1's months-long flight last year.
You can read the rest of this interesting story by clicking here.
And here are the latest orbital elements for OTV-2 the X-37B spacecraft from Ted Molczan via the SEESAT-L newsgroup mentioned in the article on FNC/Space.com.
X-37B OTV 2-1 323 X 339 km
1 37375U 11010A 11087.36528787 .00003054 00000-0 15413-4 0 04
2 37375 42.7986 153.6749 0012455 149.5021 210.6573 15.80518425 00
Arc 20110324.14-0328.38 WRMS resid 0.065 totl 0.023 xtrk