20087a.tle

# Made by eph2tle, compiled Nov 24 2020 16:22:39
# Run at Wed Nov 25 16:15:14 2020
#
# No updates (going to the moon)
#
#    The following TLEs (Two-Line Elements) were generated by fitting
# a numerically-integrated ephemeris,  based on the orbit given below,
# to the SDP4/SGP4 models.  Each TLE is good for the interval between
# its epoch and the epoch of the subsequent TLE (usually one day).
# The maximum deviation between the numerically integrated ephemerides
# and the TLE-based ephemeris, in kilometers,  is given for each TLE
# as the "worst residual".
#
#    This fitting is done using the 'eph2tle' code packaged with Find_Orb.
# The code has details on how the TLEs were computed :
#
#    https://github.com/Bill-Gray/find_orb/eph2tle.cpp
#
#    Be warned:  the error given is that between the numerically
# integrated ephems and the TLE model.  There will usually be at
# least some additional difference between the ephems and the actual
# motion of the satellite,  especially if the ephemerides are based
# on a short arc.  If the following orbital elements say something
# like "[based on] 10 observations 2015 Jan. 1-13",  and the TLEs
# are for 2015 May,  the extrapolation may be tenuous at best.  If
# your application requires a specific level of accuracy,  you may
# want to contact me;  I can give you some idea as to the fit of the
# underlying data (and possibly TLEs based on newer data).
#
#   You can usually find the underlying observational data,  and the
# fitted orbit,  residuals,  ephemerides,  and sometimes some comments
# about the object,  among the pages listed at
#
#    https://www.projectpluto.com/pluto/mpecs/pseudo.htm
#
#    Also,  if you use a TLE outside the "correct" time range (between
# its MJD and that of the next TLE),  all bets are off.  I've carefully
# computed and minimized the worst error over the "correct" time frame,
# but the ephemeris may (or may not) diverge wildly outside of it.
#
# Ephem range: 59177.000000 59181.000000 1.000000
# Created Wed Nov 25 16:14:54 2020
# Ephemeris start: 24 Nov 2020  0:00:00
# Ephemeris end:   28 Nov 2020  0:00:00
# Times are all TDT
# Positions/velocities are in ecliptic J2000
# Orbital elements:  2020-087A = NORAD 47097 = Chang'e 5 s/c
#    Perigee 2020 Nov 23.87793779 +/- 0.000436 TT = 21:04:13.825 (JD 2459177.37793779)
# Epoch 2020 Nov 25.0 TT = JDT 2459178.5                        Find_Orb
# M  38.20489988410 +/- 0.039         (J2000 equator)
# n  34.04882505334 +/- 0.0229        Peri.  227.66196617 +/- 0.034
# a203486.414537 +/- 91.2             Node     2.20020643 +/- 0.037
# e   0.9681122001 +/- 1.95e-5        Incl.   21.29848854 +/- 0.0008
# P  10.57d                  H 27.6   G  0.15   U 10.2
# q 6488.73405513 +/- 1.49    Q 400484.095019 +/- 183
# 32 of 37 observations 2020 Nov. 25 (17.7 hr); mean residual 0".321
#
# 1 NoradU COSPAR   Epoch.epoch     dn/dt/2  d2n/dt2/6 BSTAR    T El# C
# 2 NoradU Inclina RAAscNode Eccent  ArgPeri MeanAno  MeanMotion Rev# C

# Worst residual: 107.72 km
# MJD 59177.000000 (2020 Nov 24  0:00)
2020-087A = NORAD 47097 = Chang'e 5 s/c
1 47097U 20087A   20329.49919926  .00000000  00000-0  00000-0 0 10609
2 47097 021.2517 002.0693 9553394 227.9211 021.4926 00.08997058    09

# Worst residual: 36.85 km
# MJD 59178.000000 (2020 Nov 25  0:00)
2020-087A = NORAD 47097 = Chang'e 5 s/c
1 47097U 20087A   20330.49919926  .00000000  00000-0  00000-0 0 10601
2 47097 021.1820 001.9510 9562760 227.7035 055.3331 00.09264023    06

# Worst residual: 53.95 km
# MJD 59179.000000 (2020 Nov 26  0:00)
2020-087A = NORAD 47097 = Chang'e 5 s/c
1 47097U 20087A   20331.49919926  .00000000  00000-0  00000-0 0 10602
2 47097 020.9642 001.4577 9586896 227.8366 089.3256 00.09346337    09

# Worst residual: 243.27 km
# MJD 59180.000000 (2020 Nov 27  0:00)
2020-087A = NORAD 47097 = Chang'e 5 s/c
1 47097U 20087A   20332.49919926  .00000000  00000-0  00000-0 0 10603
2 47097 020.0169 358.8329 9676980 229.6209 123.2070 00.09414094    06
Avg worst resid: 110.45 km
Worst residual in entire run: 243.27 km on MJD 59180.0
       1     3     10    30    100   300   1K    3K    10K   km
     0     0     0     0     2     2     0     0     0     0