Observation record.Satnogs-UHF.2020-12-23T20-30-00

Station-sol Satnogs-UHF
Propriétaire N5CNB

Waterfall
ComparaisonDoppler
PostProcessing

Résumé de l'événement

satellite ARMADILLO
date 2020-12-23
time 20:30:00
duration 490
freq 4.37525e+08
culm 69.7802

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.2020-12-23T20-30-00.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.2020-12-23T20-30-00
  satellite ARMADILLO
  date 2020-12-23
  time 20:30:00
  samp 250000
  duration 490
  freq 4.37525e+08
  culm 69.7802
• paramètres réalisés
  recfile record.Satnogs-UHF.2020-12-23T20-30-00.dat
  start 2020-12-23T20:30:01
  end 2020-12-23T20:38:13
  freq 4.37525e+08
  gain 48
  ns 490
  samp 250000
  nsamp 122500000

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 163232000 [ 652.928 s]
  a 8207290
  sigma -101.447
  y0 2.00952e+06

calpower-stats

• Autres statistiques (de la valeur I²+Q²)
  moyenne 8.03807
  max 40.9355
  moyenne.debut.fin 7.85398
  hauteur.signal 33.0816 [ 15.1959 dB ] (max - moyenne.debut.fin)
  longueur.totale 490
  integrale.signal 90.2051 (somme - moyenne.debut.fin*longueur.totale)

Comparaison Doppler calculé et mesuré

Abscisses: fréquence en Hz
Ordonnées: temps en secondes

sumY2 3.98888e+12
sumDy2 3.63664e+12
dfmin -3645.79 sumDy2 1.88479e+12
dtmin 7.14991 sumDy2 1.87301e+12

* Kepler element data for ARMADILLO

name ‘ARMADILLO’
satellite_number 44352
central_object EARTH
ephemeris_type UnknownEphemerisType
epoch_year 20
epoch_day 357.32096738

• Kepler elements
  epoch_julday 2459205.82096738
  Time jd 2459205.82097 < 2020-12-22 07:42:11.0581 UTC >
  inclination 28.5287 deg [28 31'43"]
  right_ascension_of_ascending_node 217.24 deg [14:28:58]
  major_radius 6909.18 km
  eccentricity 0.0329001
  periast_argument 173.262 deg [173 15'42"]
  mean_anomaly 187.2544 deg [187 15'16"]

• Supplemental data
  cc 1.93629567855
  ra 7.13649e+06 [765481]
  rp 6.68186e+06 [310855]
  va 7850.97
  vp 7350.83
  axb 7136.49 x 7132.63
  mammmdt 2.98555
  bstar 5.147
  mean_motion_1st_deriv 0.00025427
  mean_motion_2nd_deriv 0
  mean_motion 15.1195 rev/day 0.0661398 day/rev
  periapsis_distance 6681.86 km
  apoapsis_distance 7136.49 km
  periapsis_mean_height 310.855 km
  apoapsis_mean_height 765.481 km
  rev_number_at_epoch 8217
  tle_age 1.14845 day

* TLE

ARMADILLO
1 44352U 19036P 20357.32096738 .00025427 00000-0 35147-3 0 9995
2 44352 28.5287 217.2396 0329001 173.2617 187.2544 15.11949298 82172

Analyse spectre

median 8.24026
noise_level_db 8.37183
min -0.0103941
max 44.8584
freq_center -4546.43
trig_level_db 10
nbin_rescaling 29.9957
freq_center_trig -20406.6
signal_range_dB 36.4865
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 58 a9 f9 3a af af 00 00 00 10 a7
  0020: 01 4f 4c d6 c4 ac f5 b6 c5 09 f7 4e 45 08 f0 dc
  0030: 40 e0 6e dc bf df 1f 9f 3c 00 cc 40 49 00 2e 00
  0040: 2b 01 00 00 01 11 00 14 00 10 00 10 00 0c 00 0d
  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 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

• 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 76 a9 f9 3a cd af 00 00 00 10 a7
  0020: 01 a8 b5 bb c4 0a 86 b8 c5 ba e2 4e 45 a8 94 de
  0030: 40 cb f4 c4 bf 37 4c d1 bd 00 e0 40 4f 00 2e 00
  0040: 2b 01 00 00 01 11 00 14 00 10 00 10 00 0c 00 0d
  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 48 65 72 65 2c 20 6c 65 74 20 6d 65 20 70
  00b0: 75 74 20 6f 6e 20 73 6f 6d 65 20 61 64 76 65 6e
  00c0: 74 75 72 65 20 6d 75 73 69 63 2e 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 94 a9 f9 3a eb af 00 00 00 10 a7
  0020: 01 27 ee a0 c4 2f e9 b9 c5 97 92 4e 45 ba 01 e0
  0030: 40 97 30 ad bf 1e 82 65 be 00 cc 40 4f 00 2e 00
  0040: 2b 01 00 00 01 11 00 14 00 10 00 10 00 0c 00 0d
  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 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 b2 a9 f9 3a 09 b0 00 00 00 10 a7
  0020: 01 20 ff 85 c4 6f 1e bb c5 8b 06 4e 45 5a 36 e1
  0030: 40 d3 29 95 bf 37 40 b1 be 00 cc 40 49 00 2e 00
  0040: 2b 01 00 00 01 12 00 14 00 10 00 10 00 0d 00 0d
  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 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 = 4
  contents =
  0000: 10 07 51 26

• 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 c1 a9 f9 3a 18 b0 00 00 00 10 a7
  0020: 01 a8 f1 67 c4 d6 d2 bb c5 ea 87 4d 45 60 e4 e1
  0030: 40 e4 03 85 bf b7 e8 da be 00 e0 40 4f 00 2e 00
  0040: 2b 01 00 00 01 12 00 15 00 10 00 10 00 0d 00 0d
  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 = 1
  contents =
  0000: 98

nombre de decodages: 7

Credits

Decodage gr-satellites v3.6.0 (Daniel Estevez)

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