1age data could be re-
) degrees. The weight
kilograms, therefore
o have a steeper inc-
re 4 indicate the gro-
specially those where
g the D2 mission the
lose contact with the
a takes dependent on
rere available in real-
ition Centre (GSOC)
S02 data takes (from
her 48 data takes were
, 5 in an by 30 deg in-
nation of the high re-
vith the multispectral
| as indicated. The to-
ration was about 4 1/2
)proximately 7 Million
tribution
) 10
5/7, HR) 5
12
) 6/7) 7
reo 6)
reo 7) 1
L) 13
rers
| over the northern part
this image only every
5th pixel is used vor visualization.
Fig. 5: Quicklook of a MOMS02/D2 digital image
4. MOMS02 DATA PROCESSING
4.1 Photogrammetric objectives
The general scope of photogrammetry is the evaluation
of the MOMSO02 stereo-image data with regard to the
task of topographic mapping, in particular to establish
topographic databases on the basis of digital terrain
models. Investigations are therefore made in a three-
part programme (F. Ackermann, 1994):
e reconstruction of strip geometry and orientation
e automatic derivation of digital terrain models
e topographic mapping, setup of topographic data-
bases
The 1st task is solved in cooperation with the pho-
togrammetric institutes of the Technical University
of Munich (Prof. H. Ebner) and Stuttgart University
(Prof. D. Fritsch) based on the orbit determination car-
ried out by the Geodetic Section of GeoForschungsZen-
trum Potsdam (Prof. C. Reigber). A specialized bundle
block adjustment programme package processes the tie
points found by image matching techniques.
The 2nd task is solved at the photogrammetric insti-
tute, Stuttgart University. Based on the experience to
generate automatically digital terrain models in a hier-
archical procedure, iconic and symbolic image pyrami-
des are generated and processed to arrive at a regular
grid DTM.
The 3rd task is solved at the photogrammetric in-
stitute, University of Hannover (Prof. G. Konecny).
In this processing step, planimetric data are captured
and stored in GIS. Also orthoimages are generated and
compared with existing topographic databases. At this
institute, also a special photogrammetric stereo work-
station is under development being able to process and
orientate three-line imagery.
4.2 Thematic objectives
The main investigations in thematic data processing
will concentrate on the fields of (J. Bodechtel et al.,
1994)
e land cover ( vegetated areas: land mass, bio-
mass estimation,agriculture, forestry, unvegetated
areas: lithology, mineral exploration, tectonic in-
vestigations, pattern analysis and object recogni-
tion)
e geomorphology
e ecology
e urban planning (hydrology, coastal environment,
desertification, natural risks)
Simultanously acquired multresolution data will pro-
vide unique possibilities to study surface temperatures
and mixed pixels fur understanding the physical and
geometric properties of the scanne objects. For vege-
tation and landuse purposes an improvement of clas-
sification accuracy is expected due to this possibility,
especially in natural forest areas, biotop detection and
monitoring regions with agro-forestry as well as in ur-
ban zones.
In addition to the MOMS02 narrow band multispec-
tral data will lead to an improved differentiation of
spectral signatures of minerals, rocks, soils and vegeta-
tion. The visible and near infrared range of the electro-
magnetic spectrum is characterised by different reflec-
tance properties of vegetation and rock/soil properties.
The spectral reflectance of minerals is maily influenced
by the wings of charge transfer bands centred in the ul-
traviolet and by crystal field absorptions at longer wa-
velength, which are caused by transition elements. Fur-
thermore, during proccessing of MOMS02/D2 data its
suitability for atmospheric research (scattering, thickn-
ess of layers), hydrological and coastal studies, the de-
tection and classification of instable slopes and others
will be investigated.
5. MOMS02 ON PRIRODA
As already pointed out before the MOMS02 camera is
right now under slight modification to be flown on the
Russian Space Station MIR in May 1995. The orbital
parameters of MIR are much better than the ones of
the Space Shuttle flight last year. MIR has an attitude
of about 350 - 400 km which allows data takes of ab-
out 60 of the earth. During MOMS02/P mission the
number of operation modi is reduced to 3 — the stereo
