Observation record.Satnogs-UHF.2020-12-27T16-13-00

Station-sol Satnogs-UHF
Propriétaire N5CNB

Waterfall
ComparaisonDoppler
PostProcessing

Résumé de l'événement

satellite ARMADILLO
date 2020-12-27
time 16:13:00
duration 620
freq 4.37525e+08
culm 57.6511

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.2020-12-27T16-13-00.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.2020-12-27T16-13-00
  satellite ARMADILLO
  date 2020-12-27
  time 16:13:00
  samp 250000
  duration 620
  freq 4.37525e+08
  culm 57.6511
• paramètres réalisés
  recfile record.Satnogs-UHF.2020-12-27T16-13-00.dat
  start 2020-12-27T16:13:01
  end 2020-12-27T16:23:22
  freq 4.37525e+08
  gain 48
  ns 620
  samp 250000
  nsamp 155000000

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 77899400 [ 311.598 s]
  a 1288790
  sigma -38029.2
  y0 2105380

calpower-stats

• Autres statistiques (de la valeur I²+Q²)
  moyenne 8.42183
  max 13.8402
  moyenne.debut.fin 8.40943
  hauteur.signal 5.43077 [ 7.34861 dB ] (max - moyenne.debut.fin)
  longueur.totale 620
  integrale.signal 7.69291 (somme - moyenne.debut.fin*longueur.totale)

Comparaison Doppler calculé et mesuré

Abscisses: fréquence en Hz
Ordonnées: temps en secondes

sumY2 4.20266e+12
sumDy2 3.53037e+12
dfmin -2543.31 sumDy2 2.47375e+12
dtmin 8.11496 sumDy2 2.45427e+12

* Kepler element data for ARMADILLO

name ‘ARMADILLO’
satellite_number 44352
central_object EARTH
ephemeris_type UnknownEphemerisType
epoch_year 20
epoch_day 361.54471319

• Kepler elements
  epoch_julday 2459210.04471319
  Time jd 2459210.04471 < 2020-12-26 13:04:23.0219 UTC >
  inclination 28.5294 deg [28 31'46"]
  right_ascension_of_ascending_node 189.144 deg [12:36:35]
  major_radius 6908.6 km
  eccentricity 0.0328131
  periast_argument 219.002 deg [219 00'08"]
  mean_anomaly 138.6475 deg [138 38'51"]

• Supplemental data
  cc 1.93645878427
  ra 7.13529e+06 [764282]
  rp 6.6819e+06 [310897]
  va 7850.61
  vp 7351.77
  axb 7135.29 x 7131.45
  mammmdt 117.226
  bstar 4.743
  mean_motion_1st_deriv 0.00018047
  mean_motion_2nd_deriv 0
  mean_motion 15.1214 rev/day 0.0661315 day/rev
  periapsis_distance 6681.9 km
  apoapsis_distance 7135.29 km
  periapsis_mean_height 310.897 km
  apoapsis_mean_height 764.282 km
  rev_number_at_epoch 8281
  tle_age 0.766028 day

* TLE

ARMADILLO
1 44352U 19036P 20361.54471319 .00018047 00000-0 24743-3 0 9996
2 44352 28.5294 189.1445 0328131 219.0021 138.6475 15.12139247 82813

Analyse spectre

median 8.61614
noise_level_db 8.73024
min 0.340216
max 37.6656
freq_center -4480.62
trig_level_db 10
nbin_rescaling 29.9957
freq_center_trig -3032.09
signal_range_dB 28.9354
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 6a b3 fe 3a ac 67 00 00 00 b0 a4
  0020: 01 69 8d 99 c4 d3 73 c6 c5 34 aa 3a 45 a8 07 d6
  0030: 40 c5 d9 ea be d0 03 d5 3f 00 e0 40 4f 00 3a 00
  0040: 2d 01 00 00 01 09 00 0d 00 09 00 0a 00 06 00 07
  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 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 88 b3 fe 3a ca 67 00 00 00 b0 a4
  0020: 01 95 0f 80 c4 3a cd c6 c5 45 bb 3d 45 44 2e d7
  0030: 40 06 7a 8d be 66 0e c8 3f 00 e0 40 49 00 3a 00
  0040: 2d 01 00 00 01 0a 00 0d 00 09 00 0a 00 06 00 07
  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 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 97 b3 fe 3a d9 67 00 00 00 b0 a4
  0020: 01 6a fd 5d c4 2b f0 c6 c5 20 ab 3f 45 6b d7 d7
  0030: 40 23 49 1e be 35 4c bf 3f 00 e0 40 49 00 3a 00
  0040: 2d 01 00 00 01 0a 00 0d 00 09 00 0a 00 07 00 07
  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 d3 b3 fe 3a 15 68 00 00 00 b0 a4
  0020: 01 9c 24 ee c3 77 e2 c6 c5 cd f3 44 45 0f 4f d9
  0030: 40 63 03 58 3e cf 7d a4 3f 00 e0 40 49 00 3a 00
  0040: 2d 01 00 00 01 0b 00 0e 00 0a 00 0a 00 07 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 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 0f b4 fe 3a 51 68 00 00 00 c0 a4
  0020: 01 fd 16 7a c2 f6 22 c6 c5 03 6e 49 45 78 ff d9
  0030: 40 c7 7d 13 3f 68 f5 88 3f 00 e0 40 49 00 3a 00
  0040: 2d 01 00 00 01 0b 00 0e 00 0a 00 0a 00 07 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 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 = 9
  contents =
  0000: 40 56 ee 60 19 81 e5 cf ac

nombre de decodages: 6

Credits

Decodage gr-satellites v3.6.0 (Daniel Estevez)

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