RESULTS OF ONBOARD INVESTIGATIONS
ON METEOROID AND TECHNOGENIC BODIES FROM
“SALYUT” AND “MIR” ORBITAL STATIONS
, A.S. SEMENOV
, V.N. REBRIKOV
, G.A. KUZIN
RUSSIAN ACADEMY OF SCIENCES
GosNIIAS, Victorenko Street 7, 125319, Moscow, Russia;
SKF, Povarskay Street 31, 095121 069 Moscow,
Russia (Tel.: 095 157 9197; Fax: 095 943 8605; E-mail: firstname.lastname@example.org)
(Received 10 January 2000; Accepted 26 April 2001)
Abstract. Processing of the data from onboard sensors collected during multi-year experiments on Salyut and
Mir orbital stations, resulting in new information on the integral spatial density of meteoroid and technogenic
bodies (MTBs), helped us to reveal certain peculiarities in the quantitative distribution of impacts of such
bodies on spacecraft and to identify some of their physico-dynamic parameters. Experimental data give
grounds for questioning the Poisson nature of the distribution of MTBs impacting on spacecraft.
Keywords: ﬂux, meteoroid, technogenic body
Investigations into the parameters and laws of the spatial distribution of meteoroid and
technogenic bodies (MTBs) have been conducted by our team since 1967, using specialized
sensor sets on board both automatic spacecraft and “Salyut” and “Mir” long-life orbital
stations (LLOS). The respective sensors of “Salyut-6” are depicted in Figure 1, and Table I
gives a list of parameters of the MTB monitoring sets used onboard manned orbital stations.
The program made use of two independent methods of measurement:
• onboard capacitor-type (condenser) sensors;
• recoverable sets retrieved after in-orbit exposure.
This research program enabled us to obtain information on
1. the time-referenced quantitative increase of the technogenic bodies;
2. the distribution of meteoric and technogenic bodies in the near-Earth space;
3. the time-referenced changes in the spatial density of MTBs;
4. the penetration effects of the MTBs, i.e. on the quantity of such bodies able to puncture
the sensor’s aluminum foil in relation to its thickness;
5. the shapes and parameters of the rupture holes and micro-craters in the exposed samples.
Condenser sensors are made of three layers. The inner condenser armature is made of
aluminum foil of 60 microns thickness, the outer condenser armature of an aluminum foil of
10, 20, 60 or 200 microns thickness for various sensors, with the intermediate layer of PETF
or PF tape of 20 microns thickness. The outer surface of the sensors was rendered with a
silicone lacquer 10 microns thick to maintain required factors of absorption and reﬂection.
Space Debris 1, 211–218, 2001.
© 2001 Kluwer Academic Publishers. Printed in the Netherlands.