Observation information
- date-obs: 2025-10-26
- time-obs: 04:52:08.497000000
- date-end: 2025-10-26
- time-end: 07:16:55.464100000
- obs_id: A14_127T09_9000006520
- exposure: 7458.70916235
- sourceid: PG0909+276
- observer: snehalata
- ra_pnt: 138.2153
- dec_pnt: 27.34205
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_127T09_9000006520_54520cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54520cztM0_level2_quad_clean.evt
|
| Size (bytes) | 527,328,000 | 114,580,800 |
| Size | 502.9 MB
| 109.3 MB
|
| Events in quadrant A | 3,887,007 | 770,508 |
| Events in quadrant B | 5,183,440 | 764,345 |
| Events in quadrant C | 5,815,813 | 681,786 |
| Events in quadrant D | 4,001,329 | 687,243 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17631 | 1 |
| B | 0 | 21481 | 1 |
| C | 0 | 23429 | 1 |
| D | 0 | 18174 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 166 | 0 |
| B | 0 | 166 | 0 |
| C | 0 | 166 | 0 |
| D | 0 | 166 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8132 | 111 | 1.364978% |
| B | 8132 | 706 | 8.681751% |
| C | 8132 | 682 | 8.386621% |
| D | 8133 | 90 | 1.106603% |
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 | 8687 | 8133 | 33 | 33 | 0.38% | 0.41% |  |
| B | 8687 | 8133 | 345 | 345 | 3.97% | 4.24% |  |
| C | 8687 | 8132 | 471 | 471 | 5.42% | 5.79% |  |
| D | 8688 | 8134 | 52 | 52 | 0.60% | 0.64% |  |
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 | 11 | 3 | 120670 | 535.44 | 909 | 886 | 223.7 |
| A | 4 | 3 | 83561 | 369.56 | 909 | 886 | 223.7 |
| A | 0 | 8 | 36633 | 159.79 | 909 | 886 | 223.7 |
| B | 5 | 185 | 1496401 | 7902.87 | 865 | 832 | 189.2 |
| B | 10 | 247 | 88164 | 461.48 | 865 | 832 | 189.2 |
| B | 0 | 213 | 83189 | 435.19 | 865 | 832 | 189.2 |
| C | 4 | 5 | 2000002 | 8586.45 | 849 | 841 | 232.8 |
| C | 9 | 38 | 183933 | 786.38 | 849 | 841 | 232.8 |
| C | 14 | 254 | 70700 | 300.05 | 849 | 841 | 232.8 |
| D | 7 | 70 | 187091 | 754.3 | 875 | 838 | 246.9 |
| D | 2 | 120 | 154118 | 620.76 | 875 | 838 | 246.9 |
| D | 5 | 173 | 56283 | 224.54 | 875 | 838 | 246.9 |
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 |  |