Observation information
- date-obs: 2026-04-26
- time-obs: 02:20:41.680500000
- date-end: 2026-04-26
- time-end: 04:32:40.656900000
- obs_id: A14_070T08_9000006568
- exposure: 7445.74193507
- sourceid: NGC2173
- observer: saroonsasi19
- ra_pnt: 89.49167
- dec_pnt: -72.97833
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_070T08_9000006568_57223cztM0_level2.fits
| modeM0/AS1A14_070T08_9000006568_57223cztM0_level2_quad_clean.evt
|
| Size (bytes) | 482,474,880 | 113,241,600 |
| Size | 460.1 MB
| 108.0 MB
|
| Events in quadrant A | 3,331,572 | 747,118 |
| Events in quadrant B | 3,966,497 | 799,300 |
| Events in quadrant C | 6,247,950 | 670,230 |
| Events in quadrant D | 3,697,933 | 661,401 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 160 | 0 |
| B | 0 | 160 | 0 |
| C | 0 | 160 | 0 |
| D | 0 | 160 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16213 | 0 |
| B | 0 | 17651 | 0 |
| C | 0 | 24148 | 0 |
| D | 0 | 17092 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7919 | 11 | 0.138906% |
| B | 7920 | 152 | 1.919192% |
| C | 7919 | 567 | 7.159995% |
| D | 7919 | 37 | 0.467231% |
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 | 7919 | 7919 | 5 | 5 | 0.06% | 0.06% |  |
| B | 7920 | 7920 | 70 | 70 | 0.88% | 0.88% |  |
| C | 7919 | 7919 | 446 | 446 | 5.63% | 5.63% |  |
| D | 7919 | 7919 | 34 | 34 | 0.43% | 0.43% |  |
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 | 13 | 248 | 27717 | 129.53 | 839 | 819 | 207.7 |
| A | 10 | 251 | 27430 | 128.15 | 839 | 819 | 207.7 |
| A | 4 | 13 | 14284 | 64.84 | 839 | 819 | 207.7 |
| B | 10 | 247 | 169828 | 951.51 | 834 | 800 | 177.6 |
| B | 4 | 201 | 154685 | 866.27 | 834 | 800 | 177.6 |
| B | 10 | 16 | 75606 | 421.11 | 834 | 800 | 177.6 |
| C | 15 | 224 | 2564244 | 11935.37 | 801 | 792 | 214.8 |
| C | 12 | 254 | 406444 | 1888.7 | 801 | 792 | 214.8 |
| C | 14 | 254 | 52398 | 240.27 | 801 | 792 | 214.8 |
| D | 3 | 12 | 100291 | 436.79 | 813 | 775 | 227.8 |
| D | 8 | 160 | 65817 | 285.48 | 813 | 775 | 227.8 |
| D | 8 | 240 | 62190 | 269.56 | 813 | 775 | 227.8 |
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 |  |