Observation record.Satnogs-UHF.2020-12-22T19-02-00

Station-sol Satnogs-UHF
Propriétaire N5CNB

Waterfall
ComparaisonDoppler
PostProcessing

Résumé de l'événement

satellite ARMADILLO
date 2020-12-22
time 19:02:00
duration 520
freq 4.37525e+08
culm 57.1997

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.2020-12-22T19-02-00.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.2020-12-22T19-02-00
  satellite ARMADILLO
  date 2020-12-22
  time 19:02:00
  samp 250000
  duration 520
  freq 4.37525e+08
  culm 57.1997
• paramètres réalisés
  recfile record.Satnogs-UHF.2020-12-22T19-02-00.dat
  start 2020-12-22T19:02:00
  end 2020-12-22T19:10:42
  freq 4.37525e+08
  gain 48
  ns 520
  samp 250000
  nsamp 130000000

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 179824000 [ 719.296 s]
  a 7049360
  sigma 16398.9
  y0 2191750

calpower-stats

• Autres statistiques (de la valeur I²+Q²)
  moyenne 8.76699
  max 36.6289
  moyenne.debut.fin 8.21307
  hauteur.signal 28.4159 [ 14.5356 dB ] (max - moyenne.debut.fin)
  longueur.totale 520
  integrale.signal 288.039 (somme - moyenne.debut.fin*longueur.totale)

Comparaison Doppler calculé et mesuré

Abscisses: fréquence en Hz
Ordonnées: temps en secondes

sumY2 4.3595e+12
sumDy2 2.90133e+12
dfmin -2705.81 sumDy2 1.89456e+12
dtmin 15.6399 sumDy2 1.82318e+12

* Kepler element data for ARMADILLO

name ‘ARMADILLO’
satellite_number 44352
central_object EARTH
ephemeris_type UnknownEphemerisType
epoch_year 20
epoch_day 356.3309527

• Kepler elements
  epoch_julday 2459204.8309527
  Time jd 2459204.83095 < 2020-12-21 07:56:34.0313 UTC >
  inclination 28.5281 deg [28 31'41"]
  right_ascension_of_ascending_node 223.825 deg [14:55:18]
  major_radius 6909.32 km
  eccentricity 0.0329252
  periast_argument 162.546 deg [162 32'45"]
  mean_anomaly 198.6755 deg [198 40'32"]

• Supplemental data
  cc 1.93624862672
  ra 7.13681e+06 [765800]
  rp 6.68183e+06 [310818]
  va 7851.08
  vp 7350.57
  axb 7136.81 x 7132.94
  mammmdt 62.3991
  bstar 6.759
  mean_motion_1st_deriv 0.00019446
  mean_motion_2nd_deriv 0
  mean_motion 15.119 rev/day 0.0661418 day/rev
  periapsis_distance 6681.83 km
  apoapsis_distance 7136.81 km
  periapsis_mean_height 310.818 km
  apoapsis_mean_height 765.8 km
  rev_number_at_epoch 8202
  tle_age 1.06428 day

* TLE

ARMADILLO
1 44352U 19036P 20356.33095270 .00019446 00000-0 26759-3 0 9998
2 44352 28.5281 223.8251 0329252 162.5459 198.6755 15.11903051 82023

Analyse spectre

median 8.5302
noise_level_db 8.64049
min 0.298519
max 36.56
freq_center -4954.45
trig_level_db 10
nbin_rescaling 29.9957
freq_center_trig -20112.5
signal_range_dB 27.9195
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 dd 42 f8 3a 4f f2 01 00 00 20 a8
  0020: 01 c8 9d d2 45 62 1a bd 43 b1 8d 58 41 2f 3c 1d
  0030: be b7 03 cb 40 0d ee 6d c0 00 e0 40 43 00 2e 00
  0040: 2a 01 00 00 01 0e 00 11 00 0c 00 0c 00 0a 00 0a
  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 19 43 f8 3a 8b f2 01 00 00 20 a8
  0020: 01 2f d1 d1 45 de 5f 43 44 ee 59 5f c3 ca d4 25
  0030: bf db 9b c9 40 e9 5f 6d c0 00 cc 40 43 00 3a 00
  0040: 2a 01 00 00 01 0e 00 11 00 0d 00 0d 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 4f 68 68 68 2c 20 74 68 65 20 53 75 6e 2e
  00b0: 20 49 27 6d 20 67 6f 6e 6e 61 20 6d 65 65 74 20
  00c0: 74 68 65 20 53 75 6e 2e 20 4f 68 20 6e 6f 21 20
  00d0: 57 68 61 74 27 6c 6c 20 49 20 73 61 79 3f 20 27
  00e0: 48 69 21 20 48 69 20 53 75 6e 21 27 20 4f 68 20
  00f0: 62 6f 79 21 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 46 43 f8 3a b8 f2 01 00 00 20 a8
  0020: 01 58 bd d0 45 c6 0c 83 44 4c 58 be c3 b1 58 79
  0030: bf 64 2c c8 40 3f 50 6c c0 00 e0 40 43 00 3a 00
  0040: 2a 01 00 00 01 0e 00 11 00 0d 00 0d 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 49 20 6c 6f 76 65 20 73 70 61 63 65 2e 20
  00b0: 49 20 6b 6e 6f 77 21 20 53 70 65 6c 6c 20 69 74
  00c0: 21 20 53 20 50 2e 2e 2e 20 41 41 43 45 2e 20 53
  00d0: 70 61 63 65 2e 20 53 70 61 63 65 2e 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 55 43 f8 3a c7 f2 01 00 00 20 a8
  0020: 01 1b 67 d0 45 68 59 8b 44 4b f2 d1 c3 b9 0b 87
  0030: bf d5 c0 c7 40 7a f6 6b c0 00 e0 40 43 00 2e 00
  0040: 2a 01 00 00 01 0e 00 11 00 0d 00 0d 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 61 72 65 20 74 68 65 20 66 61
  00b0: 72 74 68 65 73 74 20 65 76 65 72 20 69 6e 20 73
  00c0: 70 61 63 65 2e 20 57 68 79 20 6d 65 2c 20 73 70
  00d0: 61 63 65 3f 20 42 65 63 61 75 73 65 20 79 6f 75
  00e0: 20 61 72 65 20 74 68 65 20 62 65 73 74 2e 20 49
  00f0: 27 6d 20 74 68 65 20 62 65 73 74 20 61 74 20 73
  0100: 70 61 63 65 3f 20 59 65 73 2e 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 09 44 f8 3a 7b f3 01 00 00 20 a8
  0020: 01 0c a2 c6 45 36 78 0a 45 c3 17 86 c4 6e f8 18
  0030: c0 24 fd bc 40 61 ed 60 c0 00 cc 40 3e 00 2e 00
  0040: 2a 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

nombre de decodages: 5

Credits

Decodage gr-satellites v3.6.0 (Daniel Estevez)

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