Цитата: normalized_ от 10.02.2018 13:41:56Но у него апофигей еще 1.71, а не 1.666.
На HORIZONS на данный момент уточнённые данные по 128 наземным оптическим наблюдениям 8-9 февраля.
Revised: Feb 09, 2018 Tesla Roadster (spacecraft) -143205
(solution #5)
Tesla Roadster (AKA: Starman, 2018-017A)
NOTE:
The trajectory estimate will be updated here in the days ahead if more
measurement data is reported.
LAUNCHED:
2018-Feb-06 20:45 UTC by Falcon Heavy (FH) from Kennedy Space Center, USA
(launchpad 39A)
BACKGROUND:
Dummy payload from the first launch of SpaceX Falcon Heavy launch vehicle.
Consists of a standard Tesla Roadster automobile and a spacesuit-wearing
mannequin nicknamed "Starman".
Also includes a Hot Wheels toy model Roadster on the car's dash with a
mini-Starman inside. A data storage device placed inside the car contains
a copy of Isaac Asimov's "Foundation" novels. A plaque on the attachment
fitting between the Falcon Heavy upper stage and the Tesla is etched with
the names of more than 6,000 SpaceX employees.
After orbiting the Earth for 6 hours, a third-stage burn-to-depletion was
completed at approximately 02:30 UTC Feb 7, placing the dummy payload in
a heliocentric orbit having a perihelion of 0.99 au and aphelion ~1.7 au.
PAYLOAD MASS:
~1250 Kg
TRAJECTORY:
This trajectory is based on JPL solution #5, a fit to 128 ground-based
optical astrometric measurements spanning 2018 Feb 8.2 to 9.5.
Trajectory name Start (TDB) Stop (TDB)
-------------------------------- ----------------- -----------------
tesla_s5 2018-Feb-07 03:00 2030-Jan-01 00:00
На данную минуту, например, векторы положения/скорости в геоцентрической экваториальной декартовой СК:
Цитата2458160.125000000 = A.D. 2018-Feb-10 15:00:00.0000 TDB
X =-7.924722592615485E+05 Y =-6.498241853162646E+05 Z =-5.244640736748502E+05
VX=-2.395250094007260E+00 VY=-2.052684765478411E+00 VZ=-1.597780382902378E+00
Расстояние от Земли 1,151 млн. км. — около 3 радиусов лунной орбиты.
А элементы орбиты:
2458160.125000000 = A.D. 2018-Feb-10 15:00:00.0000 TDB
EC= 2.624738671433034E-01 QR= 9.860629817181549E-01 IN= 1.104210686387464E+00
OM= 3.174477391770731E+02 W = 1.772879956469330E+02 Tp= 2458153.686720096506
N = 6.375484751081493E-01 MA= 4.104715534919214E+00 TA= 7.273493337935259E+00
A = 1.336987176167966E+00 AD= 1.687911370617777E+00 PR= 5.646629457296279E+02
--------------
JDTDB Julian Day Number, Barycentric Dynamical Time
EC Eccentricity, e
QR Periapsis distance, q (au)
IN Inclination w.r.t XY-plane, i (degrees)
OM Longitude of Ascending Node, OMEGA, (degrees)
W Argument of Perifocus, w (degrees)
Tp Time of periapsis (Julian Day Number)
N Mean motion, n (degrees/day)
MA Mean anomaly, M (degrees)
TA True anomaly, nu (degrees)
A Semi-major axis, a (au)
AD Apoapsis distance (au)
PR Sidereal orbit period (day)