Observation record.Satnogs-VHF.2020-12-21T23-24-00

Station-sol Satnogs-VHF
Propriétaire N5CNB

Waterfall
ComparaisonDoppler
PostProcessing

Résumé de l'événement

satellite FUNCUBE-1_(AO-73)
date 2020-12-21
time 23:24:00
duration 320
freq 1.45935e+08
culm 57.686

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-VHF.2020-12-21T23-24-00.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-VHF.2020-12-21T23-24-00
satellite FUNCUBE-1_(AO-73)
date 2020-12-21
time 23:24:00
samp 250000
duration 320
freq 1.45935e+08
culm 57.686
paramètres réalisés
recfile record.Satnogs-VHF.2020-12-21T23-24-00.dat
start 2020-12-21T23:24:01
end 2020-12-21T23:29:23
freq 1.45935e+08
gain 50
ns 320
samp 250000
nsamp 80000000

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 25251400 [ 101.006 s]
a 19730200
sigma 149344
y0 69763900

calpower-stats

Autres statistiques (de la valeur I²+Q²)
moyenne 273.716
max 358.296
moyenne.debut.fin 277.09
hauteur.signal 81.2059 [ 19.0959 dB ] (max - moyenne.debut.fin)
longueur.totale 320
integrale.signal -1079.68 (somme - moyenne.debut.fin*longueur.totale)

Comparaison Doppler calculé et mesuré

record.Satnogs-VHF.2020-12-21T23-24-00.fft.scattered.df.png

Abscisses: fréquence en Hz
Ordonnées: temps en secondes

sumY2 1.40086e+10
sumDy2 1.90466e+10
dfmin -896.859 sumDy2 1.3494e+09
dtmin -0.0331942 sumDy2 1.34937e+09

* Kepler element data for FUNCUBE-1_(AO-73)

name ‘FUNCUBE-1_(AO-73)’
satellite_number 39444
central_object EARTH
ephemeris_type UnknownEphemerisType
epoch_year 20
epoch_day 355.48641633

Kepler elements
epoch_julday 2459203.98641633
Time jd 2459203.98642 < 2020-12-20 11:40:26.0370 UTC >
inclination 97.5697 deg [97 34'11"]
right_ascension_of_ascending_node 345.598 deg [23:02:24]
major_radius 7001.11 km
eccentricity 0.0058376
periast_argument 20.6246 deg [20 37'29"]
mean_anomaly 339.7306 deg [339 43'50"]
Supplemental data
cc 1.98839255959
ra 7.04198e+06 [670972]
rp 6.96024e+06 [589233]
va 7590.92
vp 7502.81
axb 7041.98 x 7041.86
mammmdt 247.902
bstar 0.7081
mean_motion_1st_deriv 4.99e-06
mean_motion_2nd_deriv 0
mean_motion 14.8227 rev/day 0.0674643 day/rev
periapsis_distance 6960.24 km
apoapsis_distance 7041.98 km
periapsis_mean_height 589.233 km
apoapsis_mean_height 670.972 km
rev_number_at_epoch 38092
tle_age 0.819336 day

* TLE

FUNCUBE-1 (AO-73)
1 39444U 13066AE 20355.48641633 .00000499 00000-0 67081-4 0 9998
2 39444 97.5697 345.5982 0058376 20.6246 339.7306 14.82266224380924

Analyse spectre

median 13.7569
noise_level_db 14.3112
min 5.66053
max 51.526
freq_center -34648.6
trig_level_db 10
nbin_rescaling 29.9957
freq_center_trig -43675.5
signal_range_dB 37.2148
theo_range_dB 48.1648 [ 8 bits ]

Post-traitement

gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 16 bytes (interleaver path 0)
gr::log :DEBUG: decode_rs0 - Reed-Solomon decode fail (interleaver path 1)
gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 2 bytes (interleaver path 0)
gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 2 bytes (interleaver path 1)
* MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 1k2 BPSK downlink) (rs_errors . 4) (iterations . -1))
pdu_length = 256
contents =
0000: 92 10 db 10 c5 10 d0 00 aa 20 64 00 97 05 61 00
0010: 00 1b 1a 1b 1a 00 00 03 01 01 42 71 66 a6 90 a7
0020: 3a 7b 34 22 73 aa 5b 6c 12 93 a1 d1 f4 f7 b4 29
0030: 59 4f 1c 7a 73 92 5f f4 41 4f 37 33 2f 46 55 4e
0040: 63 75 62 65 2d 31 20 6c 61 75 6e 63 68 65 64 20
0050: 20 37 20 20 79 65 61 72 73 20 61 67 6f 20 6f 6e
0060: 20 4e 6f 76 20 32 31 73 74 20 32 30 31 33 2e 20
0070: 3e 33 37 2c 30 30 30 20 6f 72 62 69 74 73 20 61
0080: 6e 64 20 73 74 69 6c 6c 20 67 6f 69 6e 67 20 77
0090: 65 6c 6c 21 00 00 00 00 00 00 00 00 00 00 00 00
00a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00b0: 00 00 00 00 00 00 00 00 00 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

gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 0 bytes (interleaver path 0)
gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 0 bytes (interleaver path 1)
* MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 1k2 BPSK downlink) (rs_errors . 0) (iterations . -1))
pdu_length = 256
contents =
0000: 93 10 f1 10 bf 10 d0 00 a7 20 64 00 92 05 61 00
0010: 00 1b 1a 1b 1a 00 00 03 01 01 42 41 62 a6 90 67
0020: 5a 73 33 23 33 aa 4b 6c 12 93 a1 d1 f4 a7 b4 09
0030: 59 4f 1c 7a 73 92 5f f4 48 61 70 70 79 20 42 69
0040: 72 74 68 64 61 79 20 46 55 4e 63 75 62 65 20 2d
0050: 20 6e 6f 77 20 37 20 79 65 61 72 73 20 6f 6c 64
0060: 20 61 6e 64 20 64 6f 69 6e 67 20 77 65 6c 6c 21
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 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00b0: 00 00 00 00 00 00 00 00 00 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

gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 0 bytes (interleaver path 0)
gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 0 bytes (interleaver path 1)
* MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 1k2 BPSK downlink) (rs_errors . 0) (iterations . -1))
pdu_length = 256
contents =
0000: 94 10 db 10 b4 11 3a 00 b2 20 64 00 92 05 61 00
0010: 00 1b 1b 1b 1a 00 00 03 01 01 42 11 5e a7 90 27
0020: 6a 6b 33 22 33 aa 0b 6c 12 93 a1 d1 f4 f7 b4 29
0030: 59 4f 1c 7a 73 92 5f f4 01 85 44 f0 47 f3 80 24
0040: 90 2d 01 85 35 68 48 f3 80 36 10 32 01 85 25 f4
0050: 49 f3 c0 25 90 2d 01 85 16 8c 4a f3 c0 28 90 2d
0060: 01 85 07 28 4b f3 40 2a 10 32 01 84 f7 c8 4b f3
0070: 40 27 10 2d 01 84 d8 58 4c f3 80 32 10 32 01 84
0080: c8 e8 4d f3 c0 2b 90 32 01 84 b9 7c 4e f3 80 28
0090: 10 2d 01 84 aa 0c 4f f3 80 29 90 32 01 84 9a a0
00a0: 50 f3 c0 29 10 2d 01 84 8b 28 50 f3 40 26 10 2d
00b0: 01 84 7b b4 51 f3 80 26 10 2d 01 84 6c 40 52 f3
00c0: 40 29 10 32 01 84 5c d0 52 f3 00 27 90 2d 01 44
00d0: 4d 60 53 f2 00 27 10 32 01 84 3d e4 54 f1 00 25
00e0: 90 2d 01 84 2e 6c 54 f0 00 29 90 32 01 84 1e f4
00f0: 55 ee c0 27 10 2d 01 44 0f 34 55 ed 80 27 10 2d

gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 0 bytes (interleaver path 0)
gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 0 bytes (interleaver path 1)
* MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 1k2 BPSK downlink) (rs_errors . 0) (iterations . -1))
pdu_length = 256
contents =
0000: 95 11 2f 10 82 10 8d 00 a0 20 64 00 92 05 61 00
0010: 00 1b 1b 1b 1a 00 00 03 01 01 41 e1 56 a8 8f e7
0020: 7a 63 33 23 33 a9 fb 7c 12 93 a1 d1 f4 77 b3 f9
0030: 59 4f 1c 7a 73 92 5f f4 57 65 6c 63 6f 6d 65 20
0040: 66 72 6f 6d 20 46 55 4e 43 75 62 65 31 20 20 74
0050: 6f 20 61 6c 6c 20 76 69 73 69 74 6f 72 73 20 61
0060: 6e 64 20 76 6f 6c 75 6e 74 65 65 72 73 20 61 74
0070: 20 74 68 65 20 52 53 47 42 20 4e 61 74 69 6f 6e
0080: 61 6c 20 52 61 64 69 6f 20 43 65 6e 74 72 65 20
0090: 61 74 20 42 6c 65 74 63 68 6c 65 79 20 50 61 72
00a0: 6b 2e 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00b0: 00 00 00 00 00 00 00 00 00 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

gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 0 bytes (interleaver path 0)
gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 0 bytes (interleaver path 1)
* MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 1k2 BPSK downlink) (rs_errors . 0) (iterations . -1))
pdu_length = 256
contents =
0000: 96 10 f1 10 f7 11 2f 00 99 20 5a 00 92 05 61 00
0010: 00 1b 1b 1b 1b 00 00 03 01 01 41 b1 52 a9 8f e7
0020: 8a 57 34 22 73 aa 0b 6c 12 93 b1 d1 e4 f7 b4 29
0030: 59 4f 1c 7a 73 92 5f f4 46 55 4e 63 75 62 65 72
0040: 73 20 74 61 6b 65 20 63 61 72 65 20 61 6e 64 20
0050: 73 74 61 79 20 73 61 66 65 20 61 6e 64 20 77 65
0060: 6c 6c 20 2d 20 62 65 73 74 20 77 69 73 68 65 73
0070: 20 66 72 6f 6d 20 46 55 4e 63 75 62 65 31 20 20
0080: 20 20 20 20 20 20 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 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00b0: 00 00 00 00 00 00 00 00 00 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

gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 8 bytes (interleaver path 0)
gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 9 bytes (interleaver path 1)
* MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 1k2 BPSK downlink) (rs_errors . 17) (iterations . -1))
pdu_length = 256
contents =
0000: 97 11 08 10 e1 11 29 00 97 20 5a 00 8d 05 61 00
0010: 00 1b 1b 1b 1a 00 00 03 01 01 41 91 52 aa 8f a7
0020: 9a 4f 33 22 f3 aa 0b 6c 12 93 a1 d1 f4 87 b3 f9
0030: 59 4f 1c 7a 73 92 5f f4 ff 01 5f ff ff ff 00 00
0040: 00 1c 7a 73 00 7f bc 01 00 0a 03 e8 00 04 00 c8
0050: 01 07 00 06 00 06 00 01 00 00 03 da 00 ff ce 00
0060: 00 00 32 00 64 00 c8 1d 56 1e 14 1e 14 1e 46 1e
0070: 82 00 fa 00 06 06 88 3e 00 00 00 00 00 00 00 00
0080: 00 00 26 00 26 00 22 00 26 00 ae ef 01 65 33 39
0090: 35 6d 0a 39 34 65 37 33 65 0a 39 34 65 37 33 65
00a0: 0a 39 34 65 37 33 65 0a 39 34 65 37 33 65 0a 39
00b0: 34 65 37 33 65 30 36 32 63 35 34 31 63 0a 0a 39
00c0: 34 65 37 33 65 0a 39 34 65 37 33 65 0a 39 34 65
00d0: 37 33 65 0a 39 34 65 37 33 65 0a 39 34 65 37 33
00e0: 65 30 36 32 63 35 34 31 63 0a 0a 39 34 65 37 33
00f0: 65 0a 39 34 65 37 33 65 0a 39 34 65 37 33 65 0a

gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 14 bytes (interleaver path 0)
gr::log :DEBUG: decode_rs0 - Reed-Solomon decode corrected 14 bytes (interleaver path 1)
* MESSAGE DEBUG PRINT PDU VERBOSE *
((transmitter . 1k2 BPSK downlink) (rs_errors . 28) (iterations . -1))
pdu_length = 256
contents =
0000: 81 0f 48 10 98 10 71 00 94 20 5a 00 92 05 61 00
0010: 00 1c 1c 1c 1b 00 00 03 01 03 40 41 22 b9 94 e9
0020: 29 4f 33 23 f3 aa 6b 7c 02 93 a1 d1 e4 c7 a3 f9
0030: 49 4f 1c 7a 75 92 5f f4 4f 00 a2 20 64 00 8d 70
0040: a7 16 8c 08 32 a0 e8 99 12 af 11 1e 11 08 0f a2
0050: 00 9e 20 64 00 92 78 86 be 7c c7 73 a5 26 c9 46
0060: b3 11 18 10 b9 0f fb 00 8f 20 5a 00 92 81 36 b1
0070: 70 f6 bb a9 25 79 ba b3 10 ec 10 d5 0f 00 00 9c
0080: 20 64 00 92 89 66 d4 69 e6 2f ac 24 ba 0e 9d 11
0090: 29 11 08 11 88 00 94 20 64 00 92 90 47 17 69 b5
00a0: f2 ae a4 fa 4a 7d 11 02 10 e1 11 40 00 99 20 5a
00b0: 00 92 95 27 7f 70 f6 15 b0 26 5a 76 61 0c 72 10
00c0: a3 10 71 00 99 20 5a 00 92 97 b7 fb 81 16 a9 ae
00d0: 67 ea 9e 52 10 f1 10 e6 10 d5 00 a2 20 64 00 92
00e0: 94 38 6d 8e 07 42 a7 28 ea c2 4d 11 24 11 13 11
00f0: 50 00 99 20 64 00 92 8b e8 c3 97 47 d1 9e a9 ba

nombre de decodages: 7

Credits

Decodage gr-satellites v3.6.0 (Daniel Estevez)

Page N5FXH