The databases included on this article refers to variables and parameters belonging to the Space Traffic Management (STM), Evidence Theory and Machine Learning (ML) fields. They have been used for implementing ML for autonomously predict risk associated to a close encounter between two space (Sanchez and Vasile,
On the Use of Machine Learning and Evidence Theory to Improve Collision Risk Management,
Acta Astronautica, Special Issue for ICSSA2020, In Press
[1]
). The position of the objected is assumed to be affected by epistemic uncertainty, which has been modeled according to Dempster-Shafer Evidence theory (DSt)
[2]
.
Six datasets are presented. Two (
DB1
and
DB2
, respectively) include samples of space object close encounters subject to epistemic uncertainty on the relative position. Other two databases (
DB3
and
DB4
, respectively) include the values of the Cumulative Plausibility and Belief Curves (
CPC
and
CBC
, respectively) of each sample included in
DB1
. The remaining databases (
DB5
and
DB6
), contain the value of the
CPC
and
CBC
of each sample included in
DB2
. All of them are synthetic databases created using computer simulation to obtain the results presented in
[1]
.
DB1
database is constituted by 9,000 samples and 45 columns and a header, while
DB2
is formed by 28,800 samples and 45 columns and a header. These databases come from a set of, respectively, 5 and 14 different families of encounter geometries defined by the range of values that can be assigned to the bounds of the intervals for the uncertain variables, assumed to be affected by epistemic uncertainty, considered to have been provided by two sources of information. The uncertain variables are: the miss distance,
[µ
x
, µ
y
],
on the impact plane (B plane), the standard deviation of the relative position projected on the B plane,
[σ
x
, σ
y
]
, and the Hard Body Radius of the combined objects,
HBR
. The dataset is completed with STM related parameters: miss distance and covariance matrix of the uncertain ellipse projected on the B plane enclosing all samples defined by the uncertainty intervals, the Probability of Collision (
P
C
) of this ellipse or the elapsed time to the Time of Closest Approach (
TCA
); with DSt related parameters: Belief and Plausibility of certain values of
Pc
; and the class of the event according to the classification detailed in
...