Re: TLE with future epoch

From: Dr. T.S. Kelso via Seesat-l <>
Date: Fri, 28 Apr 2017 16:37:55 +0000
Hi Simone,

As Cees points out, JSpOC does this regularly. We do track this on CelesTrak at, if you ever want to see which TLEs are involved. We have seen some with epochs almost 30 days in the future. We track this because it can cause problems for certain groups of our users.  - TS

Dr. T.S. Kelso

On 2017 Apr 28, at 00:56, satrack--- via Seesat-l <<>> wrote:

Hi All,
I've just noticed that some TLEs from Space Track have epoch in the future. Is that usual?Does this simply mean that the TLE parameters have been propagated for a future time?
As an example, object with Norad 20413 have epoch 17121, almost 3 days in the future.
(I've also noticed that the age of high interest objects has increased).

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