4:12:2095CE (PC4BC)                                                                               Case Number: lA6F73 20:14 EST (Earth Standard Time)

FROST

Incident Report

Until such time as the Incident Review Board publishes a statement, this report and all related papers are confidential. Readers are reminded to review section 103a of FROST Intemal Policy regarding punitive actions the company may take in response to breach of company confidentiality.


Background:

This technical report is an addendum to the Far Reaches Orbiting Station Technologies Incident Review Board dossier on policy violation #1545. The violation involves FROST employee Spiff, Spaceman Second Class.

Spiff was recently transferred to the new FROST weather control satellite in stable orbit around Planet X, the third planet of the Alpha Beta Lainbda Kappa Mu system. Prior to his departure from Earth, Spaceman Spiff was issued the standard set of duty orders for deep space officers of FROST. His duties included observation and control of weather patterns on Planet X and periodic maintenance of equipment aboard the station.

At approximately 22:50 EST on 22:08:2095CE the station's close-proximity sensor log shows clearly that a metallic object was ejected from the docking ring. Spaceman Spiff s personal log, opened under FROST directive #IA6F73, shows that he "tossed an empty over the side for old times' sake." Further analysis of the sensor log and interviews with Spaceman Spiff confirm that the object was an aluminum polycarbide beer can.

The rest of this report documents the findings of the FROST technical review team assigned to this case.

[Signature, Anna Retentive]
IRB Technical Liaison

As the technical review team assigned to this case, we examined several aspects of the situation described in FROST Case Number IA6F73. Several other intemal organizations have contributed to this report. All employees involved have signed the related confidentiality forms.

1   Space Station
     1.1 Orbit of the station
     1.2 Velocity vector of the station
     1.3 Speed of the station
     1.4 Acceleration of the station
           - Orientation of the acceleration vector
           - The constant G for theoretical acceleration

2   Beer Can
     2.1 Beer can's approximate location immediately after being ejected
     2.2 Speed of the can as a function of time
     2.3 Direction in which the can was thrown
     2.4 Long term behavior of the beer can
           - How close the can gets to the planet
           - How close the can gets to the planet's atmosphere
     2.5 Can's position from 20 to 100 minutes after ejection
           - How close does the can get to Spaceman Spiff during this interval
           - Location of Spiff and the beer can when this occurs
     2.6 Apparent motion of the can from Spaceman Spiff s point of view
     2.7 Comparison of the can's acceleration with theoretical acceleration


Section 1: Space Station

1.1 Orbit of the station
In order to better analyze data about the orbit of the beer can later in this report, it was necessary to examine some characteristics of the space station from which it was thrown. The following equations describe the orbit of the space station: where and r(t) is the displacement vector from the center of Planet X (position (0,0) in the Universal Coordinate system) at time t. From this data we see that the space station remains a constant ||r(t)|| or: 6,760,000 m from position (0,0) (i.e. the space station's path around planet X is a circle of radius of 6,760,000m).

1.2 Velocity vector of the station
The velocity vector of the space station, v(t), can be found symbolically as follows (noting that the x and y components of the vector v(t) are the derivatives of the x and y components of the vector r(t)):

An interesting thing to note is the velocity vector v(t) is perpendicular to the position vector r(t) of the space station. This can be proven by showing that the dot product of these two vectors is equal to zero:
[and much more along those lines]

[Prof. Janeba speaking now: This is just too hard to convert into a web document. You get the general idea, but if you want to see more, you can see the original scanned pages from the links below. The scanning is almost clearly readable. Students' names have been erased from the scanned pages for privacy reasons.]

[Note: This project was much harder than introductory projects. This particular report's grade was "A".]

Scanned pages of the orginal report:

Page 1 | Page 2 | Page 3 | Page 4 | Page 5 | Page 6 | Page 7 | Page 8 | Page 9 | Page 10 | Page 11


Last Modified September 24, 1998.
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