Re: Identity switch: TRMM & rocket
VideoCosmos (icosmos@dol.ru)
Mon, 15 Dec 1997 14:03:59 +0300 (MSK)
Hi,
At 22:50 14.12.1997 +0000, Alan Pickup wrote:
>
>>From my analysis of recent elsets, it appears that USSPACECOM switched
>the identities of TRMM and its H-2 rocket about day 97346.25 (December
>12.25).
[SNIP]
>Latest elsets from OIG for the objects from this launch are:
>TRMM 4.0 0.0 0.0 5.6 d 348 x 345 km
>1 25063U 97074A 97348.22908222 .00038533 00000-0 25614-3 0 209
>2 25063 34.9956 299.4239 0002102 242.9910 117.0606 15.74330593 2568
>ETS-7 Chaser 3.0 0.0 0.0 6.2 d 537 x 392 km
>1 25064U 97074B 97347.93459439 .00003979 00000-0 10000-3 0 195
>2 25064 34.9718 306.6352 0105926 336.6866 22.9006 15.33715552 2421
>ETS-7 Target 3.0 0.0 0.0 6.2 d 524 x 364 km
>1 25065U 97074C 97346.20137394 .00026710 00000-0 49362-3 0 278
>2 25065 34.5422 318.0978 0117219 321.2206 38.0139 15.40710232 2150
>TRMM H-2 r 13.5 2.5 0.0 4.2 v 373 x 360 km
>1 25066U 97074D 97348.20436608 .00123301 00000-0 10843-2 0 186
>2 25066 35.0026 300.2036 0009677 86.9688 273.1977 15.67353406 2542
>
>The "Chaser" is showing occasional jumps (up and down) in mean motion,
>while the orbit of the "Target" has been steady throughout. Current
>elsets for all these objects are in my select.tle file, via the URL
>below.
The names for 25064 and 25065 should not be correct as well. As far as I know,
the two parts of ETS-7 have never separated. So, either 25064 or 25065 is
the whole ETS-7. Well, what's the other object then? And, if the 25066
'TRMM H-2 r' propelled TRMM into a 373x360 km orbit, what
stage/engine/etc. rised ETS-7 apogee to 524-537 km?
Igor Lissov