| ODF-0 | Read and write information from/to text file |
| ODF-0.1 | Printing out configuration and Result of OD as a Text File |
| ODF-0.2 | Loading configuration and result of OD from a Text File |
| ODF-1 | Effectivity check of observation data |
| ODF-2 | Edit observation data |
| ODF-2.1 | Specific editing function based on user command |
| ODF-2.2 | Iterative editing function based on residual |
| ODF-3 | Determinate state vector at all mission phases |
| ODF-3.1 | Initial orbit determination (IOD) right after the Launch |
| ODF-3.2 | Orbit determination at the Earth parking |
| ODF-3.3 | Trajectory determination during the lunar transfer |
| ODF-3.4 | Orbit determination at the Moon |
| ODF-7 | Autonomous function support for OD (dependent to mission phases) |