Re: Ident please ?, also SL16,Iridium30

Tristan Cools (
Tue, 24 Aug 1999 23:35:49 +0200 (CEST)

At 01:25 22/08/99 +0100, you wrote:

>My reason for posting is that I saw a satellite in the right general
>area a minute or so before the predicted time for the SL16 but not
>flashing. Huh! I thought, so much for that damp squib ! Got my
>prediction wrong and it didnt flash, can I have my money back ! :-))
>However, following it for a short while it didn't have the expected
>trajectory so I noted the following :

Hello Malcolm,

I had the same observation as yours, and me too I was confused.  I quickly
noticed that the steady one had a slightly higher track and was about two
minutes sooner.  I found it to be travelling a bit faster than a Zenit
rocket would do so I thought this could't be the predicted object.   I did
see the Zenit rocket later on.

What we saw was Kosmos 1154(80-08A/11682).

Maybe you can simulate your observation with the elements below:

Cosmos 1154      5.0  1.5  0.0  5.4 v 20.4
1 11682U 80008A   99231.09718777 +.00002357 +00000-0 +13186-3 0 00916
2 11682 081.2327 274.2973 0011252 242.8831 117.1252 15.13046380614771

Tristan Cools
BWGS Member - Belgian Working Group Satellites

Observing at:

Damse Vaart: 3.2486E/51.2279N
Ryckevelde: 3.2867E/51.2054N
Brugge: 3.1611E/51.2108N