Legends Prev - XMM-Newton
XMM-Newton Mission Status & Performance Indicator
Legend for the Efficiency Breakdown
Data is provided for the past 6 months.
The "revolution breakdown" charts include parts of the revolution falling within the science window (available for science) and parts within the radiation belts (not available for science).
The "science window breakdown" charts are divided into the following components;
| Science performed; | science time spent on the Open Time & Guaranteed Time targets. | ||||||||
| Calibration performed; | time spent for calibration | ||||||||
| Slews; | time spent slewing between targets (includes star tracker field acquisition and locking on a guide star) | ||||||||
| Idle time; | time where no activity could be scheduled. | ||||||||
| Instruments overheads; | time spent to configure the instruments at the start and end of each observation/exposure. | ||||||||
| Solar flares; | time lost due to high radiation coming from the sun. | ||||||||
| Contingencies; |
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Total scheduled and performed science time figures for the past 6 months are also presented.
Legend for the Evolution of Efficiency
These diagrams show the evolution of the instrument efficiency since the start of the routine phase (revolution 103, 01/07/2000).
The performed science time and the main contingencies are displayed;
| Solar flares; | time lost due to high radiation coming from the sun. |
| S/C Pb; | problems in the spacecraft. |
| G/S Pb; | time lost due to ground segment problems (slew parameters not computed in time, transmission drops, ground station antenna or link problems...) |
| Instrument Pb; | time lost because of instrument anomalies. |
| Support to other S/C; |
time lost because the ground-segment antenna had to be used to support other spacecraft (ENVISAT, MSG ...) or for emergencies. |
Total scheduled and performed science time figures since the start of the routine phase are also presented.