We are used to watch the #phases of our #Moon, now we can contemplate the ones of our own #planet from there by the eyes of the #spacecraft #Danuri.

#Waxing and #waning, our beautiful full #Earth.

📷 KARI

#KPLO #SouthKorea #astronomy #astrodon

Watching signals from #KPLO
Very noisy. maybe due frozen feed?
LOS at the same time of DSS56 Madrid

RT @Astrogator_Mike@twitter.com

First ShadowCam image from orbit reveals the permanently shadowed wall and floor of Shackleton crater #KPLO

http://shadowcam.sese.asu.edu/images/1284

🐦🔗: https://twitter.com/Astrogator_Mike/status/1612568855246942210

No, it is not a #photo #montage.
It is truly a view of #Earth and the #Moon as seen from the #spacecraft #Danuri where both have an apparent same size.

Yes. W-O-W again.

#lunar #space #spacecraft #astrodon #KPLO #KARI #SouthKorea

#KPLO EME reflection (0:00) and downlink (0:37). The EME reflection is pretty loud as I'm listening with LHCP while the RHCP downlink from the spacecraft is attenuated by around 20dB due opposite polarization sense. You can see Doppler uplink compensation in action.

Another trip to the roof and switched polarization to LHCP to improve the lunar reflection SNR.

Doing so really improved the performance on the fast Doppler uplink compensated signal from DSS56 as it communicates with #KPLO.

Moon bounce (EME) of #KPLO's uplink signal.

This isn't a DSN station so most likely Korea Deep Space Antenna (KDSA) as it doesn't appear to use Doppler uplink compensation like the DSN does.

Tonight's testing with #KPLO had me visit the roof and remove my 2195-2305MHz bandpass filter.

Here's DSN Madrid's DSS56 lunar reflection as it uplinks to KPLO.

The fluctuations in the signal is called Libration Fading and is caused by the Moon's rough surface.

Close to a full lunar day of observations of #KPLO's arrival at the Moon and all the associated dynamics!

For those starting to look beyond just hearing the signal studying the Doppler data over this length of time starts to lay the astrodynamics bare.
https://twitter.com/coastal8049/status/934657669817778176

RT @coastal8049@twitter.com

Here's what a lunar day of @LRO_NASA@twitter.com S-band Doppler data looks like, working with @cgbassa@twitter.com on detailed orbital analysis. Stay tuned!

🐦🔗: https://twitter.com/coastal8049/status/934657669817778176

RT @SEE_Aerospace@twitter.com

Go, #KPLO! This photo was taken using the high-resolution camera (LUTI) mounted on #Danuri, and you can clearly see the lunar craters and the Earth. https://twitter.com/kari2030/status/1610097598953828354

🐦🔗: https://twitter.com/SEE_Aerospace/status/1610313774359105538

Wow! And wow!
Images of #Earth from the #Moon captured by #Danuri, the first mission of #SouthKorea.

W-O-W!

#lunar #space #spacecraft #astrodon #KPLO #KARI

KPLO on S-band
#ADSN #KPLO

Goldstone sending commands to #KPLO.

These are echoed back via the transponder...

#KPLO data on JPL Horizons has been updated. Here's the summary of the tracking data to date.

The spacecraft appears to be switching off prior to lunar occultation now. 🧵⬇️

Nice signals from #KPLO this evening. Goldstone lock and some normal goings on afterwards.

Soon I'll reply to the poll about last night's KPLO mystery so heads up!

South Korea's Minister of science and ICT announces that #KPLO is officially in it's science orbit around the Moon.

After 11 period measurements, I conclude nominal altitude of 112km with period of 7140 seconds.

Congrats to South Korea!
https://www.koreatimes.co.kr/www/tech/2022/12/133_342563.html?utm_source=tw

What happened to #KPLO's radio signal?

Time for some satellite tracking fun!

I just observed a loss of signal (LOS) from #KPLO in orbit around the Moon. Here's what that moment looked like in this short video.

In the 🧵⬇️ lets see if you've been paying attention as there's a satellite tracking skill testing poll.

SBIRS GEO 4 and #KPLO duking it out for my attention this evening.

The SBIRS GEOs use 2262.5MHz nominally for space to Earth data. SBIRS GEO 6 uses 2252.5MHz as well and is located in what I think is the check out position just east of 4.

RT @coastal8049@twitter.com

#KPLO Lunar occultation diffraction pattern observed today with my 1.8m dish. Thanks for the great info by @ea4gpz@twitter.com and @cgbassa@twitter.com.

More info on what this means:
https://twitter.com/ea4gpz/status/1118896321124032512

🐦🔗: https://twitter.com/coastal8049/status/1607530616958091266