Observation information
- date-obs: 2026-04-22
- time-obs: 16:49:12.539100000
- date-end: 2026-04-22
- time-end: 18:58:58.509100000
- obs_id: A14_070T08_9000006568
- exposure: 5655.0945031
- 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_57173cztM0_level2.fits
| modeM0/AS1A14_070T08_9000006568_57173cztM0_level2_quad_clean.evt
|
| Size (bytes) | 470,545,920 | 93,421,440 |
| Size | 448.7 MB
| 89.1 MB
|
| Events in quadrant A | 2,885,780 | 636,533 |
| Events in quadrant B | 3,685,425 | 659,938 |
| Events in quadrant C | 5,780,707 | 528,750 |
| Events in quadrant D | 4,560,391 | 550,112 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13451 | 2 |
| B | 0 | 15680 | 2 |
| C | 0 | 21788 | 2 |
| D | 0 | 17687 | 7 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6505 | 33 | 0.507302% |
| B | 6505 | 261 | 4.012298% |
| C | 6505 | 952 | 14.634896% |
| D | 6504 | 214 | 3.290283% |
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 | 7570 | 6506 | 10 | 10 | 0.13% | 0.15% |  |
| B | 7570 | 6506 | 172 | 172 | 2.27% | 2.64% |  |
| C | 7570 | 6506 | 724 | 724 | 9.56% | 11.13% |  |
| D | 7569 | 6505 | 214 | 214 | 2.83% | 3.29% |  |
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 | 3 | 14 | 85312 | 491.58 | 694 | 679 | 172.2 |
| A | 13 | 248 | 28450 | 161.3 | 694 | 679 | 172.2 |
| A | 6 | 226 | 17878 | 99.9 | 694 | 679 | 172.2 |
| B | 10 | 16 | 662136 | 4607.76 | 671 | 646 | 143.6 |
| B | 2 | 249 | 210813 | 1463.97 | 671 | 646 | 143.6 |
| B | 5 | 185 | 41064 | 281.54 | 671 | 646 | 143.6 |
| C | 15 | 224 | 2970906 | 17423.31 | 620 | 615 | 170.5 |
| C | 15 | 198 | 95693 | 557.71 | 620 | 615 | 170.5 |
| C | 13 | 3 | 72273 | 420.34 | 620 | 615 | 170.5 |
| D | 5 | 113 | 529910 | 2808.88 | 655 | 623 | 188.4 |
| D | 7 | 96 | 524965 | 2782.64 | 655 | 623 | 188.4 |
| D | 12 | 33 | 338006 | 1790.46 | 655 | 623 | 188.4 |
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 |  |