(T2-P47) MONITORING OF ROCKETS LAUNCHING FROM BAYKONUR COSMODROME BY DATA OF SEISMIC AND INFRASOUND STATIONS OF KAZAKHSTAN Sokolova I.N., Mikhailova N.N. Institute of Geophysical Research, Kazakhstan Each year tens of rockets are launched from Baykonur cosmodrome located in Central Kazakhstan. The traces of rockets launched from “Baykonur” pass over the territory of some Kazakhstan regions. The specific of most foreign cosmodromes is that the main trace of rockets flight and fall of vehicle stages is under oceans. Analysis of waveforms of signals related to carrier rockets flights. It is known that some stages of flight and emergency launches of carrier rockets have negative ecological consequences related to emission of toxic fuel into atmosphere or ground. For The selected fragments of the records allowed to process the signals that included revealing of seismic phases, determination of seismic urgent assessment for such situations consequences it is necessary to determine the coordinates of a carrier rocket fall, and at explosion in atmosphere – height of explosion and coordinates. The database of seismo-acoustic data fragments related to carrier rockets launch from Baykonur cosmodrome was created using records of the RSE IGR network stations for waves arrival time. After that, basing on this data the event was located, the time of fall onto the Earth surface and energy characteristics of Currently, in Kazakhstan there is no special service for recording such events using seismic and infrasound monitoring methods. Thus, much time is required to find the places of rockets the period 1994-2012. The fragments duration is 45 minutes beginning from the rocket launch time, the database is in CSS3.0 format. All fragments were analyzed on presence of the event were determined. Note that recorded signals were quite weak, thus frequency filtering was used for its clear extraction on the fall, sometimes those are not found at all, in the case of explosion in air the explosion yield is not measured making impossible to assess the volume of released fuel. seismo-acoustic signals. As a result, several types of recorded phenomena corresponding to the rocket flight were revealed on active part of its trajectory. background of seismic noise. Since 1994 the monitoring network of the IGR RK that includes 8 seismic arrays, 7 three-component stations and 2 infrasound arrays (Figure 1) has been operating successfully on the The first class are launches recorded by IS31 infrasound station located ~610 km away from the cosmodrome. Figure 8 shows the record of Proton-M carrier rocket launch from The final processing results showed that the event epicenter was 571 km away from Akbulak station and 725 km away from Karatayu territory of Kazakhstan. 5 stations are included into the IMS. The main feature of Kazakhstan monitoring network is that all stations are located throughout the perimeter of the Republic; launching mount-39 on June 3, 2010 in 22-00-07.9. The launch signal and several infrasound phases are clearly seen. The beginning of the record corresponds to 1936s after station. The time of the carrier rocket fall was 19 h 47 min 10.59 sec Greenwich time. The released seismic energy corresponds to earthquake the network contains large number of high-sensitive seismic arrays of different aperture and configuration. Owing to good stations location in view of geology and characteristics of seismic launching, the first train corresponds to the moment of the rocket takeoff, v~315 m/s. Despite close location to the cosmodrome, IS31 station does not record all launches from energy with energy class 6, magnitude mpv = 2.44. This seismic event is related to small one, and the fact that the signals were recorded and noise, well-configured arrays, location of most stations in boreholes, joint operation of broadband and short-period instruments, all system stations are high sensitive to regional and Baykonur space port. The reasons are unfavorable conditions for recording during the flight, large wind velocity at the station region, and unfavorable atmosphere conditions at discriminated on the background of noise is a result of high sensitivity of seismic arrays. Note that the event magnitude is not a representative teleseismic events of different nature. In addition to permanent stations, the network of field seismic stations is often installed which data can be used for more detailed monitoring of the launch moment. In total, the station records 45% of all launches, maximum number of recorded launches are in June-August [8]. events. The task of this work is investigation of possibility of seismo-acoustic recording of phenomena related to flights of carrier rockets over the territory of Kazakhstan by the IGR one for the region and at other noise conditions it could remain unrecorded. Another widespread type of signals is the moment of the second stage separation from the rocket and PLF jettison. These phenomena are recorded by the stations located at the monitoring network. The seismic records allowed to determine the coordinates of the rocket fall place: latitude 44.53 N., longitude 62.95 E. Calculation error STS regions in amount ~50% of all launches. Figure 9 shows the record of seismo-acoustic signal at the moment of the second stage separation and PLF jettison of Proton-M carrier for latitude was 44.53 - 44.57=-0.04, that corresponds to 4.8 km. Calculation error for longitude was 62.95 - 62.97=-0.02, i.e. 1.3 km. rocket launched from launching mount-24 on May 17, 2012 in 19-12-14, the height is ~120 km by data of KURIS infrasound station, Kurchatov-Cross seismic array and KURK Brief characteristics of rockets launching from Baykonur cosmodrome. Thus, the IGR seismic stations allowed to locate the crater formed as a result of “Dnepr” carrier rocket explosion with high accuracy at station. Kurchatov-Cross seismic array records clearly show low-frequency surface signal followed by acoustic signal. Arrival time from the start time is tRg(KURBB)=914 s, distances 600 – 700 km [5]. The cosmodrome consists of 9 launching sites with 14 launching mounts [2], carrier rockets “Proton-K”, “Zenit-2”, “Soyuz-U”, “Soyuz-U2”, “Molniya-M”, “Cyclon-2”, “Rokot” are tI(KURBB)=920 s, for infrasound station tI1=911 s, tI2=923 s. Such signals are recorded from carrier rockets Proton-M, Soyuz-2, Soyuz-FG, Soyuz-U, Zenit launched with inclination IS31 infrasound station recorded launch and fall of “Dnepr” carrier rocket. The original records by low- and high frequency channels launched from here. Total area of the cosmodrome is 6717 square kilometers. About 40 percent of all space vehicles of the former USSR and Russia were placed into orbit from Baykonur angle to orbit 51.6, 64.8, and by geostationary. are shown in Figure 15, the records after filtration – in Figure 16. cosmodrome. The cosmodrome consists of the center site, left and right sides and fall area. After the carrier rockets launch, its first and second stages, and fairings of space vehicles fall During operation of the field stations network the signals of PLF jettison were recorded (Figure 10). Figure 11 shows a seismogram of this phenomena recorded by DEG1 station onto ground in different areas. First stages fall onto the territory of Kazakhstan and Turkmenistan, second stages fall mostly at Tomsk and Novosibirsk areas, however there are other fall located at Degelen site of the STS, and seismograms of a tectonic earthquake of July 24, 2010, 2010, 0-58-24.2, 49.784, 77.995, quarry blast conducted at Karazhal quarry on July 24, areas, for example, Yakutia [2]. 2010, 14-25-15.7, 49.869, 78.049; the record of collapse of May 23, 2010, 23-17-27.9, 49.7802, 78.0336 recorded at close distances from the station. The earthquake record shows clear As KAZNET stations network has been operating since July 21, 1994 the present work analysis the rocket launches starting from that moment until 2012. During that period 365 arrivals of P and S waves, As/Ap>1. Low-frequency surface wave is prevailing in explosion record, and clear arrivals of P and S waves are observed in the high-frequency record of rockets were launched from Baykonur (Table 3, Figure 3), i.e. about 20 launches per year. The rocket flight trace depends on inclination angle of an orbit to which the rocket is placed. Table rock fall, As/Ap<1. The record of PLF jettison differs from seismic records of other events, and consists of low-frequency surface wave and high-frequency infrasound signal. 1 (Figure 2) shows information about number of launches for the period 27.07.1994-31.12.2012 for different carrier rockets launched from the cosmodrome, and inclination angles of orbits to which space vehicles were placed [2, 3, 4]. For the investigated period, Proton and Soyuz carrier rockets were launched most frequently. Figure 3 shows a diagram of an orbit inclination angle distribution to which orbital units were placed for investigated period, the usual inclination angles are ~51.6 and ~64.8, the corresponding flight traces are shown in Figure 1. Interesting to note that both traces are near Kurchatov-Cross seismic array (KUR) and infrasound array (KURIS). The infrasound sources during the carrier rockets flights in active part of its trajectory are: turbulent fluctuations of jet flame products, “attached” shock wave at carrier rocket stages fall, explosion of the carrier rocket in crash [6]. The sources of seismic fluctuations during the carrier rockets flight could be: chock wave at carrier rocket stages fall, the carrier rocket stages fall, fall and explosion of a carrier rocket in crash. Standard cyclograms of the carrier rockets flights and trajectories of space vehicles flights and stages after launching can be used for interpreting of seismic and acoustic fluctuations (by information from Scientific and Developmental Center named after Khrunichev) (Figure 4) [4].