is defined as exactly 231 cubic inches.
I would say that was a long way from being completely unrelated to the inch.
While the pound is unrelated to the inch, it is defined as exactly 0.45359237
kilograms.
Neither is a nice round number, but there is a definite relationship.
William Thompson
, TAI or UTC, are
calculated and maintained onboard the spacecraft.
Bill Thompson
P.S. Please excuse me if you get this message twice. I was having trouble with
my subscription setup, and wasn't sure if it really went out the first time.
--
William Thompson
NASA Goddard Space Flight Center
Randy Kaelber wrote:
On Tue, Sep 27, 2005 at 03:56:07PM -0400, William Thompson wrote:
The spacecraft that I've had experience with coordinate the spacecraft clocks
with Earth-based time standards.
The Solar and Heliospheric Observatory (SOHO) spacecraft (which at a distance of
0.01 A.U. can
better than one
hour accuracy.
--
William Thompson
NASA Goddard Space Flight Center
Code 612.1
Greenbelt, MD 20771
USA
301-286-2040
[EMAIL PROTECTED]
Time that the original intent
was that UTC would be more-or-less synchronous with UT0, UT1, UT2. The current
debate is whether we should move away from that original intent.
--
William Thompson
NASA Goddard Space Flight Center
Code 612.1
Greenbelt, MD 20771
USA
301-286-2040
[EMAIL PROTECTED]
