Observation record.Satnogs-UHF.2020-12-17T21-51-00

Station-sol Satnogs-UHF
Propriétaire N5CNB

Waterfall
ComparaisonDoppler
PostProcessing

Résumé de l'événement

satellite ARMADILLO
date 2020-12-17
time 21:51:00
duration 220
freq 4.37525e+08
culm 54.3825

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.2020-12-17T21-51-00.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.2020-12-17T21-51-00
  satellite ARMADILLO
  date 2020-12-17
  time 21:51:00
  samp 250000
  duration 220
  freq 4.37525e+08
  culm 54.3825
• paramètres réalisés
  recfile record.Satnogs-UHF.2020-12-17T21-51-00.dat
  start 2020-12-17T21:51:01
  end 2020-12-17T21:54:43
  freq 4.37525e+08
  gain 48
  ns 220
  samp 250000
  nsamp 55000000

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 6.642e+07 [ 265.68 s]
  a 2795850
  sigma 62297.3
  y0 2348100

calpower-stats

• Autres statistiques (de la valeur I²+Q²)
  moyenne 9.39041
  max 20.6621
  moyenne.debut.fin 9.41612
  hauteur.signal 11.2459 [ 10.51 dB ] (max - moyenne.debut.fin)
  longueur.totale 220
  integrale.signal -5.65624 (somme - moyenne.debut.fin*longueur.totale)

Comparaison Doppler calculé et mesuré

Abscisses: fréquence en Hz
Ordonnées: temps en secondes

sumY2 2.25505e+12
sumDy2 1.83042e+12
dfmin -2473.82 sumDy2 1.31765e+12
dtmin -0.685074 sumDy2 1.31692e+12

* Kepler element data for ARMADILLO

name ‘ARMADILLO’
satellite_number 44352
central_object EARTH
ephemeris_type UnknownEphemerisType
epoch_year 20
epoch_day 350.0599199

• Kepler elements
  epoch_julday 2459198.5599199
  Time jd 2459198.55992 < 2020-12-15 01:26:17.0079 UTC >
  inclination 28.5283 deg [28 31'42"]
  right_ascension_of_ascending_node 265.524 deg [17:42:06]
  major_radius 6910.09 km
  eccentricity 0.0330506
  periast_argument 94.7645 deg [94 45'52"]
  mean_anomaly 269.0763 deg [269 04'35"]

• Supplemental data
  cc 1.93601358927
  ra 7.13847e+06 [767462]
  rp 6.6817e+06 [310697]
  va 7851.63
  vp 7349.23
  axb 7138.47 x 7134.57
  mammmdt 23.7967
  bstar 2.242
  mean_motion_1st_deriv 0.00023319
  mean_motion_2nd_deriv 0
  mean_motion 15.1165 rev/day 0.0661529 day/rev
  periapsis_distance 6681.7 km
  apoapsis_distance 7138.47 km
  periapsis_mean_height 310.697 km
  apoapsis_mean_height 767.462 km
  rev_number_at_epoch 8107
  tle_age 1.86895 day

* TLE

ARMADILLO
1 44352U 19036P 20350.05991990 .00023319 00000-0 32242-3 0 9993
2 44352 28.5283 265.5236 0330506 94.7645 269.0763 15.11650158 81071

Analyse spectre

median 9.05693
noise_level_db 9.19503
min 1.19827
max 39.3567
freq_center -5005.48
trig_level_db 10
nbin_rescaling 29.9957
freq_center_trig -6991.75
signal_range_dB 30.1617
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 cd 9a f1 3a 10 d6 00 00 00 20 a9
  0020: 01 49 23 9b 45 fd c2 43 c5 2e 2d 47 45 3b 09 7d
  0030: 40 52 64 c9 40 19 03 ed 3d 00 cc 40 3e 00 3a 00
  0040: 28 01 00 00 01 0c 00 0e 00 0c 00 0b 00 08 00 08
  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 47 65 74 74 69 6e 67 20 62 6f 72 65 64 20
  00b0: 6f 66 20 73 70 61 63 65 2e 00 00 00 00 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 dc 9a f1 3a 1f d6 00 00 00 20 a9
  0020: 01 fe 63 9c 45 6a bb 3f c5 86 3c 47 45 22 4c 79
  0030: 40 f7 8d ca 40 ba 93 93 3d 00 cc 40 3e 00 3a 00
  0040: 28 01 00 00 01 0d 00 0e 00 0c 00 0b 00 08 00 08
  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 44 6f 20 79 6f 75 20 73 6d 65 6c 6c 20 73
  00b0: 6f 6d 65 74 68 69 6e 67 20 62 75 72 6e 69 6e 67
  00c0: 3f 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 eb 9a f1 3a 2e d6 00 00 00 20 a9
  0020: 01 a2 d6 9e 45 fb 9b 37 c5 cf 45 47 45 ea bb 71
  0030: 40 35 cd cc 40 9c 75 79 bc 00 e0 40 43 00 3a 00
  0040: 28 01 00 00 01 0d 00 0e 00 0c 00 0c 00 08 00 08
  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 68 61 74 27 73 20 79 6f 75 72 20 66 61
  00b0: 76 6f 72 69 74 65 20 74 68 69 6e 67 20 61 62 6f
  00c0: 75 74 20 73 70 61 63 65 3f 20 4d 69 6e 65 20 69
  00d0: 73 20 73 70 61 63 65 2e 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 fa 9a f1 3a 3d d6 00 00 00 20 a9
  0020: 01 81 08 a0 45 65 84 33 c5 c3 3f 47 45 16 e9 6d
  0030: 40 bf e2 cd 40 74 f5 70 bd 00 e0 40 43 00 3a 00
  0040: 28 01 00 00 01 0d 00 0e 00 0c 00 0c 00 08 00 08
  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 42 65 74 74 65 72 20 62 75 79 20 61 20 74
  00b0: 65 6c 65 73 63 6f 70 65 2e 20 57 61 6e 6e 61 20
  00c0: 73 65 65 20 6d 65 2e 20 42 75 79 20 61 20 74 65
  00d0: 6c 65 73 63 6f 70 65 2e 20 47 6f 6e 6e 61 20 62
  00e0: 65 20 69 6e 20 73 70 61 63 65 2e 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 18 9b f1 3a 5b d6 00 00 00 10 a9
  0020: 01 ef 80 a3 45 2a 1c 27 c5 e9 02 47 45 fb 43 62
  0030: 40 9c fb d0 40 56 17 42 be 00 e0 40 43 00 3a 00
  0040: 28 01 00 00 01 0d 00 0e 00 0c 00 0c 00 08 00 08
  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 44 6f 6e 27 74 20 6c 69 6b 65 20 73 70 61
  00b0: 63 65 2e 20 44 6f 6e 27 74 20 6c 69 6b 65 20 73
  00c0: 70 61 63 65 2e 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

nombre de decodages: 5

Credits

Decodage gr-satellites v3.6.0 (Daniel Estevez)

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