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Hello All,

We have a good copy of 4M here in LX.
Steady signals with positive Doppler, 400Hz.

Energy level is good.

73 Ghislain LX2RG

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After some days of incertitude, we now have sevral things for certain:
We had a perigee in the night of Saturday to Sunday
We have strong signals in Europe
4M has energy left for another 2-3 days
It appears that the injection during the flyby was much closer to the one of Chang’e 5T1 than the estimated elements after passivation. This led to a return to Earth quicker than expected. Although we had some inkling since Thursday, which show a higher than expected Doppler, it was difficult to sort it out.

We have now (3Nov 1340UTC) a negative Doppler and a quasi stationnary pointing (Az 290°, El 80°), along with strong signals, that lead to the conclusion that 4M is somewehere around 40000km, in an orbit with a inclination of 50°, and with a negative radial speed showing it has not reached its apogee.
Apparently, the Dosimter experiment has stopped functioning. But this may also be normal due to its technological nature, and it may restart.
Sat tuned, and keep on uploading your reports using the 4M data client.

We’ll try to provide TLE as soon as possible using all observations and Doppler.

Thanks to Viljo, ES5PC, Geroge VK4AMG, Rein W6SZ for their help.

Ghislain

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Keep on using our elements. Tomorrow will tell us which trajectory is the most likely, using AOS and LOS.

For the time being, 4M has still plenty of energy.
Northern hemisphere staion will loose visibility tomorrow or after tomorrow, and will recover 4M from the 2 Nov. In the meantime, 4M shall begin to come back to Earth and signals should raise. Perigee is expected between 2 and 5 Nov, at 40Mm to 90Mm.



73 lx2rg