Observation record.Satnogs-UHF.2020-12-18T21-38-00

Station-sol Satnogs-UHF
Propriétaire N5CNB

Waterfall
ComparaisonDoppler
PostProcessing

Résumé de l'événement

satellite ARMADILLO
date 2020-12-18
time 21:38:00
duration 240
freq 4.37525e+08
culm 62.2057

Waterfall

Le graphique en bas à gauche donne le waterfall (temps en abscisse, fréquence en ordonnée). Le graphique en haut donne la puissance du signal intégrée en fréquence en fonction du temps. En bas à droite moyenne des spectres sur tous les temps de mesure (fréquence en ordonnée).

L'étendue en temps de la mesure est donnée dans la partie en haut à droite (minimum_time, maximum_time). L'étendue en fréquence déterminée par le nombre de points utilisés par la transformée de Fourier est donnée par fmin et fmax. Les unités utilisées pour la puissance (ou l'énergie reçue dans chaque intervalle de temps) n'ont pas pu être déterminées.

transitfile record.Satnogs-UHF.2020-12-18T21-38-00.transit

Données complémentaires de la capture

Le début du transit est marqué par un cercle et la fin du transit par un disque.

paramètres prévus
filename record.Satnogs-UHF.2020-12-18T21-38-00
satellite ARMADILLO
date 2020-12-18
time 21:38:00
samp 250000
duration 240
freq 4.37525e+08
culm 62.2057
paramètres réalisés
recfile record.Satnogs-UHF.2020-12-18T21-38-00.dat
start 2020-12-18T21:38:00
end 2020-12-18T21:42:02
freq 4.37525e+08
gain 48
ns 240
samp 250000
nsamp 60000000

Fit Gaussien

Lorsque l'intensité du signal en fonction du temps suit une loi approximativement Gaussienne, cet outil doit en capturer approximativement les paramètres par ajustement non-linéaire. L'ajustement est réalisé à l'aide de la librairie NLOPT2. Le comportement est indéfini si la loi est quelconque.

abscisses: nombre de giga-samples
ordonnées: sum_20000(I²+Q²)/1e6

Resultats du fit
t0 37745500 [ 150.982 s]
a 2304370
sigma 102574
y0 2251620

calpower-stats

Autres statistiques (de la valeur I²+Q²)
moyenne 9.01046
max 17.9805
moyenne.debut.fin 8.70044
hauteur.signal 9.28011 [ 9.67553 dB ] (max - moyenne.debut.fin)
longueur.totale 240
integrale.signal 74.4062 (somme - moyenne.debut.fin*longueur.totale)

Comparaison Doppler calculé et mesuré

record.Satnogs-UHF.2020-12-18T21-38-00.fft.scattered.df.png

Abscisses: fréquence en Hz
Ordonnées: temps en secondes

sumY2 4.09986e+12
sumDy2 4.0461e+12
dfmin -2654.35 sumDy2 2.88367e+12
dtmin 0.933334 sumDy2 2.88154e+12

* Kepler element data for ARMADILLO

name ‘ARMADILLO’
satellite_number 44352
central_object EARTH
ephemeris_type UnknownEphemerisType
epoch_year 20
epoch_day 351.97443435

Kepler elements
epoch_julday 2459200.47443435
Time jd 2459200.47443 < 2020-12-16 23:23:11.0127 UTC >
inclination 28.5277 deg [28 31'40"]
right_ascension_of_ascending_node 252.795 deg [16:51:11]
major_radius 6909.83 km
eccentricity 0.0330189
periast_argument 115.44 deg [115 26'25"]
mean_anomaly 248.0733 deg [248 04'24"]
Supplemental data
cc 1.93607299925
ra 7.13799e+06 [766978]
rp 6.68168e+06 [310668]
va 7851.53
vp 7349.6
axb 7137.99 x 7134.09
mammmdt 277.507
bstar 0.987
mean_motion_1st_deriv 0.00022453
mean_motion_2nd_deriv 0
mean_motion 15.1173 rev/day 0.0661492 day/rev
periapsis_distance 6681.68 km
apoapsis_distance 7137.99 km
periapsis_mean_height 310.668 km
apoapsis_mean_height 766.978 km
rev_number_at_epoch 8136
tle_age 0.939987 day

* TLE

ARMADILLO
1 44352U 19036P 20351.97443435 .00022453 00000-0 30987-3 0 9993
2 44352 28.5277 252.7950 0330189 115.4403 248.0733 15.11734297 81368

Analyse spectre

median 8.77907
noise_level_db 8.89274
min 0.420225
max 39.7405
freq_center -5012.01
trig_level_db 10
nbin_rescaling 29.9957
freq_center_trig -5724.72
signal_range_dB 30.8478
theo_range_dB 48.1648 [ 8 bits ]

Post-traitement

MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 19k2 FSK downlink))
pdu_length = 272
contents =
0000: ae 90 64 b0 b2 a4 60 96 8a 6a 88 a8 ae e1 03 f0
0010: 08 17 12 fb 01 25 e9 f2 3a 67 24 02 00 00 20 a9
0020: 01 bd 01 58 45 87 82 97 c5 45 35 3e 45 4a 8c b2
0030: 40 b8 cb 98 40 e1 ea 8b 3f 00 e0 40 3e 00 2e 00
0040: 28 01 00 00 01 0f 00 12 00 0e 00 0e 00 0a 00 0b
0050: 00 02 00 06 00 06 00 02 00 09 00 02 00 00 00 00
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00a0: 00 00 54 68 69 73 20 61 69 6e 27 74 20 4d 61 72
00b0: 71 75 69 73 20 6f 66 20 51 75 65 65 6e 73 62 65
00c0: 72 72 79 20 52 75 6c 65 73 2c 20 73 77 65 65 74
00d0: 69 65 21 20 50 6f 75 72 20 6f 6e 20 74 68 65 20
00e0: 6d 75 73 74 61 72 64 21 00 00 00 00 00 00 00 00
00f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 19k2 FSK downlink))
pdu_length = 272
contents =
0000: ae 90 64 b0 b2 a4 60 96 8a 6a 88 a8 ae e1 03 f0
0010: 08 17 12 fb 01 34 e9 f2 3a 76 24 02 00 00 20 a9
0020: 01 6e b3 5b 45 d5 e9 95 c5 8d eb 3e 45 20 36 b1
0030: 40 fd b2 9a 40 41 5e 86 3f 00 e0 40 3e 00 2e 00
0040: 28 01 00 00 01 0f 00 12 00 0e 00 0e 00 0a 00 0b
0050: 00 02 00 06 00 06 00 02 00 09 00 04 00 00 00 00
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00a0: 00 00 54 68 65 72 65 27 73 20 6e 6f 74 68 69 6e
00b0: 67 20 69 6e 20 73 70 61 63 65 21 20 54 68 61 74
00c0: 27 73 20 77 68 79 20 69 74 27 73 20 73 70 61 63
00d0: 65 21 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 19k2 FSK downlink))
pdu_length = 272
contents =
0000: ae 90 64 b0 b2 a4 60 96 8a 6a 88 a8 ae e1 03 f0
0010: 08 17 12 fb 01 43 e9 f2 3a 85 24 02 00 00 20 a9
0020: 01 db 01 63 45 16 a9 92 c5 07 42 40 45 f5 76 ae
0030: 40 2d 72 9e 40 19 66 76 3f 00 cc 40 49 00 3a 00
0040: 28 01 00 00 01 0f 00 12 00 0e 00 0e 00 0a 00 0b
0050: 00 02 00 06 00 06 00 02 00 09 00 02 00 00 00 00
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00a0: 00 00 59 6f 75 20 6b 6e 6f 77 20 77 68 61 74 20
00b0: 49 20 68 6f 70 65 27 73 20 69 6e 20 73 70 61 63
00c0: 65 3f 20 46 69 72 65 2e 20 49 20 68 6f 70 65 20
00d0: 79 6f 75 20 67 6f 20 74 6f 20 73 70 61 63 65 20
00e0: 61 6e 64 20 63 61 74 63 68 20 6f 6e 20 66 69 72
00f0: 65 2e 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 19k2 FSK downlink))
pdu_length = 272
contents =
0000: ae 90 64 b0 b2 a4 60 96 8a 6a 88 a8 ae e1 03 f0
0010: 08 17 12 fb 01 52 e9 f2 3a 94 24 02 00 00 20 a9
0020: 01 52 9e 66 45 24 01 91 c5 29 e2 40 45 09 0e ad
0030: 40 ef 49 a0 40 da 29 6b 3f 00 cc 40 43 00 2e 00
0040: 28 01 00 00 01 0f 00 12 00 0e 00 0e 00 0b 00 0b
0050: 00 02 00 06 00 06 00 02 00 09 00 04 00 00 00 00
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00a0: 00 00 57 65 20 77 69 6c 6c 20 62 6f 74 68 20 64
00b0: 69 65 20 62 65 63 61 75 73 65 20 6f 66 20 79 6f
00c0: 75 72 20 6e 65 67 6c 69 67 65 6e 63 65 2e 00 00
00d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 19k2 FSK downlink))
pdu_length = 272
contents =
0000: ae 90 64 b0 b2 a4 60 96 8a 6a 88 a8 ae e1 03 f0
0010: 08 17 12 fb 01 61 e9 f2 3a a3 24 02 00 00 20 a9
0020: 01 8e 32 6a 45 a3 54 8f c5 b2 7a 41 45 4f 9f ab
0030: 40 e8 1b a2 40 b3 e5 5f 3f 00 e0 40 43 00 2e 00
0040: 28 01 00 00 01 0f 00 12 00 0e 00 0e 00 0b 00 0b
0050: 00 02 00 06 00 06 00 02 00 09 00 02 00 00 00 00
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00a0: 00 00 54 68 69 73 20 73 69 74 75 61 74 69 6f 6e
00b0: 20 69 73 20 68 6f 70 65 6c 65 73 73 2e 00 00 00
00c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 19k2 FSK downlink))
pdu_length = 272
contents =
0000: ae 90 64 b0 b2 a4 60 96 8a 6a 88 a8 ae e1 03 f0
0010: 08 17 12 fb 01 7f e9 f2 3a c1 24 02 00 00 20 a9
0020: 01 fd c1 74 45 d7 31 8a c5 66 17 43 45 a8 2e a7
0030: 40 29 71 a7 40 9a dd 3d 3f 00 e0 40 3e 00 2e 00
0040: 28 01 00 00 01 0f 00 12 00 0e 00 0e 00 0b 00 0b
0050: 00 02 00 06 00 06 00 02 00 09 00 02 00 00 00 00
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00a0: 00 00 41 74 6d 6f 73 70 68 65 72 65 2e 20 42 6c
00b0: 61 63 6b 20 68 6f 6c 65 73 2e 20 41 73 74 72 6f
00c0: 6e 61 75 74 73 2e 20 4e 65 62 75 6c 61 73 2e 20
00d0: 4a 75 70 69 74 65 72 2e 20 54 68 65 20 42 69 67
00e0: 20 44 69 70 70 65 72 2e 00 00 00 00 00 00 00 00
00f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

nombre de decodages: 6

Credits

Decodage gr-satellites v3.6.0 (Daniel Estevez)

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