Observation information
- date-obs: 2015-11-07
- time-obs: 03:57:34.326000000
- date-end: 2015-11-07
- time-end: 05:59:16.320200000
- obs_id: P01_126T01_9000000084
- exposure: 3753.45544276
- sourceid: Crab-SSM1-P1
- observer: ramadevi
- ra_pnt: 80.3923
- dec_pnt: -68.1274
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_126T01_9000000084_00594cztM0_level2.evt
| modeM0/AS1P01_126T01_9000000084_00594cztM0_level2_quad_clean.evt
|
| Size (bytes) | 798,534,720 | 61,937,280 |
| Size | 761.5 MB
| 59.1 MB
|
| Events in quadrant A | 6,016,216 | 383,546 |
| Events in quadrant B | 6,137,388 | 393,798 |
| Events in quadrant C | 5,577,438 | 383,534 |
| Events in quadrant D | 6,120,772 | 364,436 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 24 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21409 | 3 |
| B | 0 | 21774 | 2 |
| C | 0 | 20124 | 2 |
| D | 0 | 21716 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 102 | 0 |
| B | 0 | 102 | 0 |
| C | 0 | 102 | 0 |
| D | 0 | 102 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4991 | 3 | 0.060108% |
| B | 4991 | 9 | 0.180325% |
| C | 4991 | 3 | 0.060108% |
| D | 4991 | 65 | 1.302344% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7146 | 4992 | 123 | 123 | 1.72% | 2.46% |  |
| B | 7146 | 4992 | 123 | 123 | 1.72% | 2.46% |  |
| C | 7146 | 4992 | 40 | 40 | 0.56% | 0.80% |  |
| D | 7146 | 4992 | 212 | 212 | 2.97% | 4.25% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 0 | 149 | 64352 | 185.25 | 1522 | 1500 | 339.3 |
| A | 13 | 160 | 39553 | 112.16 | 1522 | 1500 | 339.3 |
| A | 0 | 69 | 12659 | 32.89 | 1522 | 1500 | 339.3 |
| B | 7 | 221 | 261417 | 733.64 | 1506 | 1514 | 354.3 |
| B | 4 | 250 | 26822 | 71.44 | 1506 | 1514 | 354.3 |
| B | 15 | 82 | 16286 | 41.7 | 1506 | 1514 | 354.3 |
| C | 1 | 1 | 67487 | 171.54 | 1392 | 1441 | 385.0 |
| C | 15 | 241 | 20421 | 49.29 | 1392 | 1441 | 385.0 |
| C | 3 | 159 | 17916 | 42.79 | 1392 | 1441 | 385.0 |
| D | 1 | 4 | 201073 | 471.02 | 1358 | 1412 | 423.9 |
| D | 13 | 216 | 148887 | 347.91 | 1358 | 1412 | 423.9 |
| D | 13 | 221 | 138869 | 324.27 | 1358 | 1412 | 423.9 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |