Author Topic: SpaceX F9 : KPLO : CCSFS SLC-40 : 4 August 2022 (23:08 UTC) (Read 49068 times)

Rondaz · « **Reply #160 on:** 08/05/2022 01:24 am »

No better way to end a day of double launches than free admission to Playalinda. It has truly been an incredible day.

https://twitter.com/mbrostphotos/status/1555351713531535360

Comga · « **Reply #161 on:** 08/05/2022 01:57 am »

Quote from: meekGee on 08/04/2022 11:14 pm

Lots of ice chunks, right?

That’s common but did you notice at SES-1 that when the stiffening ring comes off the MVac engine bell lip it flies right towards the Sun, and it’s tumbling shadow falls back on the engine bell.

That I have not seen before.
Screen capture: stiffening ring half in upper left corner, shadow on the bell.

Steve G · « **Reply #162 on:** 08/05/2022 01:59 am »

Don't you miss the good old days when lunar transit times was three days?

Vettedrmr · « **Reply #163 on:** 08/05/2022 02:12 am »

First time in a long time I saw the RCS system working with the grid fins during landing (T+8:52). She worked hard to stick the landing!

ZachS09 · « **Reply #164 on:** 08/05/2022 03:42 am »

Quote from: Steve G on 08/05/2022 01:59 am

Don't you miss the good old days when lunar transit times was three days?

I do. I wonder if it takes more delta-v to do a three-day transit.

jackvancouver · « **Reply #165 on:** 08/05/2022 03:52 am »

Quote from: Alexphysics on 08/05/2022 12:37 am

When people at Hawthorne go oohhh ahhh for a landing it's almost always because the feed got cut which, as it turns out, it's what happened. They have other feeds but if they don't have signal neither from booster nor droneship you can bet the other feeds ain't working either so they don't see anything at all, wrong or bad, hence the moaning (because just like us, they also like to see the landing)

Jami's working pretty hard to get each feed, tweaking the forward error correction thresholds on the RF and UDP/IP stuff.

Sometimes to get the sync better for each camera, they use less error correcting buffer to reduce latency. The consequence though is if the signal gets too weak, they simply have no useful decodable data.

BTW, huge props to this forum for getting the first droneship landing footage to a usable state.

NaN · « **Reply #166 on:** 08/05/2022 05:43 am »

Quote from: ZachS09 on 08/05/2022 03:42 am

Quote from: Steve G on 08/05/2022 01:59 am
Don't you miss the good old days when lunar transit times was three days?

I do. I wonder if it takes more delta-v to do a three-day transit.

It would take more dV for the payload - the webcast discusses the tradeoff in some reasonable level of detail at the 9m45s mark:

https://youtube.com/watch?v=rTrkHZjiO_8&t=583

FutureSpaceTourist · « **Reply #167 on:** 08/05/2022 06:13 am »

SpaceX launch photos by Ben Cooper

Rondaz · « **Reply #168 on:** 08/05/2022 09:25 am »

NASA’s ShadowCam Launches Aboard Korea Pathfinder Lunar Orbiter

NASA Posted on August 4, 2022 8:09 pm

NASA’s ShadowCam is heading to the Moon aboard Korea Aerospace Research Institute (KARI)’s Korea Pathfinder Lunar Orbiter (KPLO) mission. KPLO, also known as Danuri, launched at 7:08 p.m. EDT on a SpaceX Falcon 9 from Launch Complex 40 on the Cape Canaveral Space Force Station in Florida on August 4.

Developed by Arizona State University and Malin Space Science Systems, ShadowCam is one of five instruments on board KARI’s KPLO spacecraft.

A hypersensitive optical camera, ShadowCam, will collect images of permanently shadowed regions near the Moon’s poles. This will allow ShadowCam to map the reflectance of these regions to search for evidence of ice deposits, observe seasonal changes, and measure the terrain inside the craters. The ShadowCam instrument was designed based on previous imagers like those found on the Lunar Reconnaissance Orbiter, but it is several hundred times more light-sensitive to allow for capturing details within the permanently shadowed regions.

The data gathered from ShadowCam and the other KPLO instruments will support future lunar exploration efforts, including Artemis. The high-resolution imagery captured in extremely low-light conditions could help inform landing site selection and exploration planning for future Artemis missions by providing insight into terrain and lighting conditions, and the distribution and accessibility of resources like water ice that are useful for long-duration stays. The data from ShadowCam and the unprecedented views into the permanently shadowed regions could also help scientists learn more about how the Moon formed and evolved and about our solar system.

In addition to ShadowCam, NASA is also contributing communications and navigation support to KPLO and science support to the KPLO team via nine NASA-funded scientists. The Republic of Korea (ROK) signed the Artemis Accords last year and continues to collaborate with NASA on lunar exploration efforts.

In ROK, the orbiter is known as “Danuri” after a public naming contest resulted in a name combining the Korean words for “Moon” (dal) and “enjoy” (nuri).

Over the next 4.5 months, KPLO will use a fuel-saving Korean Ballistic Trajectory 62-mile (100 km) lunar polar orbit, where upon arrival, it will then begin operations on a planned 11-month mission.

https://blogs.nasa.gov/artemis/2022/08/04/nasas-shadowcam-launches-aboard-korea-pathfinder-lunar-orbiter/

Rondaz · « **Reply #169 on:** 08/05/2022 09:30 am »

South Korea's first lunar probe Danuri launched aboard Falcon 9

astronautics 02:08 05 Aug. 2022

The Falcon 9 launch vehicle carrying the Danuri lunar probe, South Korea's first interplanetary spacecraft, lifted off from Cape Canaveral. The probe will operate in lunar polar orbit for at least a year, investigating the composition and structure of the Moon's surface, as well as looking for ice deposits in the Moon's polar craters. The launch was broadcast on Youtube.

KPLO (Korea Pathfinder Lunar Orbiter) became the first South Korean spacecraft launched beyond Earth orbit. It was created by the Korea Institute of Astronomy and Space Sciences for more than six years, while NASA contributed to the project by supplying one of the scientific instruments, as well as pledging to help maintain communication with the device. The second official name of the probe is "Danuri", which means "enjoy the moon" in Korean. The launch of Danuri will be the first stage of the South Korean lunar program, the second stage of which will start in 2025, when an orbiter and a lander with a lunar rover will be sent to the Moon.

The total mass of the probe is 678 kilograms, it is equipped with two solar arrays, a parabolic antenna, a propulsion system of eight orbital maneuvering and attitude control engines, and five scientific instruments. The LUTI (LUnar Terrain Imager) camera will take detailed images of the Moon's surface, the PolCam camera will conduct polarimetric observations of the Moon in the optical and ultraviolet wavelengths. KMAG magnetometer will study the magnetic field of the Moon and lunar vortices, and the KGRS gamma-ray spectrometer will study the distribution of various chemical elements and water in the surface layer of the Moon. The latest scientific instrument will be NASA's high-sensitivity ShadowCam camera, designed to capture permanently shadowed craters near the Moon's poles. In addition, there is an experiment on board the device DTNPL (Delay-Tolerant Networking experiment) to create a communication channel with the Earth, resistant to delays.

On August 5, 2022 at 02:08 Moscow time, the Falcon 9 Block 5 launch vehicle of the private space company SpaceX launched from the SLC-40 pad at the Space Force Base at Cape Canaveral. This was the sixth flight for this Falcon 9 first stage, and the fourth for both fairing flaps. The first stage successfully boarded the Just Read the Instructions barge nine minutes after launch. In total, this is 127 successful landings of the first stages on the account of SpaceX and 110 missions using the first stages of the Falcon 9 and Falcon Heavy that have already flown.

Forty minutes after launch, the second stage successfully launched the Danuri into Earth orbit, from where the flight to the Moon would begin. The probe is expected to enter lunar orbit by December. After that, it will move to a working polar orbit with an altitude of 100 kilometers, where its scientific program will begin, designed for at least one year.

Earlier, we talked about how South Korea successfully launched its own launch vehicle for the first time.

Alexander Voytyuk

https://nplus1.ru/news/2022/08/05/kplo-start

Rondaz · « **Reply #170 on:** 08/05/2022 10:09 am »

#SpaceX's #Falcon9 & #FalconHeavy flightworthy boosters as of Aug 4, 2022

Statistics of #SpaceX's #Falcon9 & #FalconHeavy booster missions as of Aug 4, 2022

https://twitter.com/_rykllan/status/1555389972735315968

Rondaz · « **Reply #171 on:** 08/05/2022 10:11 am »

@elonmusk's 60 launches plan as of Aug 4, 2022

https://twitter.com/_rykllan/status/1555389982533099526

Rondaz · « **Reply #172 on:** 08/05/2022 10:42 am »

#SpaceRace got new companion! #SouthKorea launched its 1st domestically developed lunar orbiter #Danuri through #SpaceX’s #Falcon9 rocket, becoming 7th country to race for moon. Will conduct wireless internet test by streaming a video of #KPOP group #BTS’s hit song #Dynamite.

https://twitter.com/ShashankSPatel_/status/1555491864085938176

Rondaz · « **Reply #173 on:** 08/05/2022 02:37 pm »

Updated @SpaceX #Falcon9 booster graphic!

https://twitter.com/SpaceIntellige3/status/1555537025591394305

FutureSpaceTourist · « **Reply #174 on:** 08/05/2022 03:29 pm »

https://twitter.com/johnkrausphotos/status/1555566916269248512

Quote

Incredible display of fury from Falcon 9’s Merlin 1D engines as the vehicle lifts off with the Korea Pathfinder Lunar Orbiter yesterday evening

johnkrausphotos.com/New

Rondaz · « **Reply #175 on:** 08/05/2022 04:41 pm »

This includes Falcon 9 vertical on SLC-40 just 7 hours before launching KPLO to the Moon!

You can even see what I think is media out at the pad setting remotes! Can you spot yourself out there?

https://twitter.com/Harry__Stranger/status/1555556196848807936

sdsds · « **Reply #176 on:** 08/05/2022 11:06 pm »

Quote from: Steven Pietrobon on 08/04/2022 11:56 pm

I calculate a non-Sun affected apogee of 1,687,814 km.

And the distance to SE-L1 is "only" 1.5 million km? Did they overshoot?

https://www.esa.int/Science_Exploration/Space_Science/L1_the_first_Lagrangian_Point

alugobi · « **Reply #177 on:** 08/05/2022 11:40 pm »

The callout was "nominal orbit", so they put it where they wanted it to be.

crandles57 · « **Reply #178 on:** 08/06/2022 12:46 am »

Quote from: sdsds on 08/05/2022 11:06 pm

Quote from: Steven Pietrobon on 08/04/2022 11:56 pm
I calculate a non-Sun affected apogee of 1,687,814 km.

And the distance to SE-L1 is "only" 1.5 million km? Did they overshoot?

https://www.esa.int/Science_Exploration/Space_Science/L1_the_first_Lagrangian_Point

Is the white dot by the sun arrow the L1 point?

Seems possible given the distances above and seems to scale to moon orbital distance reasonably well.

From that, the 1.68m km distance is perhaps? not in the direction of the sun so path of Danuri might remain outside the 1.5m km L1 orbit?

Is the L1 point an apogee limit for highly elliptical orbits, but only when apogee is in direct line towards the sun?

Rondaz · « **Reply #179 on:** 08/06/2022 01:13 am »

CelesTrak has GP data for 1 of 2 objects from the launch (2022-094) of KPLO atop a Falcon 9 rocket from Cape Canaveral on Aug 4 at 2308 UTC:

https://twitter.com/TSKelso/status/1555677781182124032