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jlv
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Re: Telsa Roadster in Space

Wed Feb 07, 2018 2:13 pm

EatsShootsandLeafs wrote:To be clear is this car still attached tot he upper unit and will it stay attached, or is it literally just shot off by itself?
I might be wrong, but I think it was to stay attached for the 6 hour coast until the transfer orbit injection burn, after which it would detach from the cradle and 2nd stage.

In the press conference last night Musk said something to the effect that the "batteries should last 10 hours" after which there would be no more video sent. I assume he meant the batteries powering the camera and transmitters, as I believe the car's battery was removed prior to launch.
'13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17, sold 11/18) 34K mi
Tesla S 75D (3/17) 29K mi
Tesla X 100D (ordered, 12/18 delivery)
3 reservation canceled

lorenfb
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Re: Telsa Roadster in Space

Wed Feb 07, 2018 5:05 pm

jlv wrote:
EatsShootsandLeafs wrote:I assume he meant the batteries powering the camera and transmitters, as I believe the car's battery was removed prior to launch.


Obviously, why add another 1K+ of additional weight and have a huge fireball when the Starman re-enters, as the Li battery burns.
Leaf SL MY 9/13: 70K miles, 49 Ahrs, 5.1 miles/kWh (average), Hx=70, SOH=78, L2 charges to 100% > 1000, max battery temp < 95F (35C), min discharge point > 20 Ahrs

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RegGuheert
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Re: Telsa Roadster in Space

Wed Feb 07, 2018 5:42 pm

lorenfb wrote:Obviously, why add another 1K+ of additional weight and have a huge fireball when the Starman re-enters, as the Li battery burns.
Re-enters? This thing is going into orbit around the Sun with the perigee at Earth distance and the apogee at Mars distance.
RegGuheert
2011 Leaf SL Demo vehicle
10K mi. on 041413; 20K mi. (55.7Ah) on 080714; 30K mi. (52.0Ah) on 123015; 40K mi. (49.8Ah) on 020817; 50K mi. (47.2Ah) on 120717; 60K mi. (43.66Ah) on 091918.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

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EVDRIVER
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Re: Telsa Roadster in Space

Wed Feb 07, 2018 6:25 pm

RegGuheert wrote:
lorenfb wrote:Obviously, why add another 1K+ of additional weight and have a huge fireball when the Starman re-enters, as the Li battery burns.
Re-enters? This thing is going into orbit around the Sun with the perigee at Earth distance and the apogee at Mars distance.



You forgot the sky is always falling on MNL so everything in tow comes along.

lorenfb
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Re: Telsa Roadster in Space

Wed Feb 07, 2018 7:22 pm

RegGuheert wrote:
lorenfb wrote:Obviously, why add another 1K+ of additional weight and have a huge fireball when the Starman re-enters, as the Li battery burns.
Re-enters? This thing is going into orbit around the Sun with the perigee at Earth distance and the apogee at Mars distance.


We'll see, i.e. what the "orbit" length turns out to be.
Leaf SL MY 9/13: 70K miles, 49 Ahrs, 5.1 miles/kWh (average), Hx=70, SOH=78, L2 charges to 100% > 1000, max battery temp < 95F (35C), min discharge point > 20 Ahrs

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RegGuheert
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Re: Telsa Roadster in Space

Thu Feb 08, 2018 3:41 am

lorenfb wrote:
RegGuheert wrote:
lorenfb wrote:Obviously, why add another 1K+ of additional weight and have a huge fireball when the Starman re-enters, as the Li battery burns.
Re-enters? This thing is going into orbit around the Sun with the perigee at Earth distance and the apogee at Mars distance.


We'll see, i.e. what the "orbit" length turns out to be.
:?: :?:

Not up on orbital dynamics? It is ALREADY in orbit around the Sun with the orbital characteristics that I mentioned.

It is not going to "re-enter" anything. It will orbit the sun LONG after all of us here are gone.

EVDRIVER was correct: "The sky is falling!" for some around here.
RegGuheert
2011 Leaf SL Demo vehicle
10K mi. on 041413; 20K mi. (55.7Ah) on 080714; 30K mi. (52.0Ah) on 123015; 40K mi. (49.8Ah) on 020817; 50K mi. (47.2Ah) on 120717; 60K mi. (43.66Ah) on 091918.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

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jlv
Posts: 868
Joined: Thu Apr 24, 2014 6:08 pm
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Location: Massachusetts

Re: Telsa Roadster in Space

Thu Feb 08, 2018 1:46 pm

lorenfb wrote:We'll see, i.e. what the "orbit" length turns out to be.

We all suspected it, but now we know. lorenfb is shorting the Tesla's orbit.
'13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17, sold 11/18) 34K mi
Tesla S 75D (3/17) 29K mi
Tesla X 100D (ordered, 12/18 delivery)
3 reservation canceled

lorenfb
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Re: Telsa Roadster in Space

Thu Feb 08, 2018 3:03 pm

RegGuheert wrote:
lorenfb wrote:
RegGuheert wrote:Re-enters? This thing is going into orbit around the Sun with the perigee at Earth distance and the apogee at Mars distance.


We'll see, i.e. what the "orbit" length turns out to be.
:?: :?:

Not up on orbital dynamics? It is ALREADY in orbit around the Sun with the orbital characteristics that I mentioned.

It is not going to "re-enter" anything. It will orbit the sun LONG after all of us here are gone.

EVDRIVER was correct: "The sky is falling!" for some around here.


Sorry the "intended orbit" failed, i.e. "Lost in Space". Elon stopped tweeting about it. Without any on-board telemetry,
who really knows its actual present and future locations. Anyone ready for Elon's trip to Mars? What a joke on Elon?
Tesla should've auctioned the Roadster, i.e. at least Elon could have given some SpaceX employees a small raise.

Laughable!
Leaf SL MY 9/13: 70K miles, 49 Ahrs, 5.1 miles/kWh (average), Hx=70, SOH=78, L2 charges to 100% > 1000, max battery temp < 95F (35C), min discharge point > 20 Ahrs

WetEV
Posts: 2346
Joined: Fri May 04, 2012 8:25 am
Delivery Date: 16 Feb 2014
Location: Near Seattle, WA

Re: Telsa Roadster in Space

Thu Feb 08, 2018 6:00 pm

lorenfb wrote:Sorry the "intended orbit" failed, i.e. "Lost in Space". Elon stopped tweeting about it. Without any on-board telemetry,
who really knows its actual present and future locations.


People with a good enough telescope. Or people that know how to find catalogs of such things. For the next few years, say 10,000 or so, you could just start with the current orbital elements and calculate orbits. Jupiter's gravity will cause some minor changes to the orbit.

Image
The Tesla Roadstar is now in orbit around the sun. This photo of it was taken two days after launch on Feb. 8. Like most man-made objects at a distance in outer space, it looks like a faint star. Gianluca Masi / Michael Schwartz / Virtual Telescope and Tenagra Observatory
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
2012 Leaf SL Red (Totaled)
2014 Leaf SL Red

WetEV
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Joined: Fri May 04, 2012 8:25 am
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Re: Telsa Roadster in Space

Thu Feb 08, 2018 8:57 pm

I messed up this link, but please change to match your location. Then click Generate Ephemeris.

https://ssd.jpl.nasa.gov/horizons.cgi?C ... 107c28962f

However, there is an oversight in the description. The towel isn't listed. Don't panic.
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
2012 Leaf SL Red (Totaled)
2014 Leaf SL Red

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