Observation information
- date-obs: 2026-04-29
- time-obs: 20:17:30.706600000
- date-end: 2026-04-29
- time-end: 22:42:36.672800000
- obs_id: A14_049T03_9000006570
- exposure: 6553.79188466
- sourceid: NGC 1796
- observer: amrutha
- ra_pnt: 75.67679
- dec_pnt: -61.13996
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_049T03_9000006570_57279cztM0_level2.fits
| modeM0/AS1A14_049T03_9000006570_57279cztM0_level2_quad_clean.evt
|
| Size (bytes) | 456,857,280 | 89,424,000 |
| Size | 435.7 MB
| 85.3 MB
|
| Events in quadrant A | 4,097,941 | 586,242 |
| Events in quadrant B | 3,311,375 | 624,575 |
| Events in quadrant C | 5,214,476 | 536,741 |
| Events in quadrant D | 3,776,376 | 501,173 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16678 | 2 |
| B | 0 | 14559 | 2 |
| C | 0 | 20121 | 2 |
| D | 0 | 16029 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6578 | 133 | 2.021891% |
| B | 6578 | 95 | 1.444208% |
| C | 6578 | 395 | 6.004865% |
| D | 6578 | 167 | 2.538766% |
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 | 7866 | 6862 | 84 | 84 | 1.07% | 1.22% |  |
| B | 7866 | 6862 | 29 | 29 | 0.37% | 0.42% |  |
| C | 7866 | 6862 | 316 | 316 | 4.02% | 4.61% |  |
| D | 7866 | 6862 | 143 | 143 | 1.82% | 2.08% |  |
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 | 949275 | 5526.59 | 697 | 680 | 171.6 |
| A | 8 | 4 | 362104 | 2105.69 | 697 | 680 | 171.6 |
| A | 3 | 95 | 32955 | 188.04 | 697 | 680 | 171.6 |
| B | 5 | 185 | 187855 | 1246.87 | 695 | 668 | 150.1 |
| B | 7 | 252 | 91000 | 601.71 | 695 | 668 | 150.1 |
| B | 0 | 199 | 64197 | 423.17 | 695 | 668 | 150.1 |
| C | 15 | 224 | 2154430 | 11947.01 | 660 | 653 | 180.3 |
| C | 14 | 254 | 161732 | 893.51 | 660 | 653 | 180.3 |
| C | 15 | 216 | 110360 | 608.55 | 660 | 653 | 180.3 |
| D | 8 | 240 | 707494 | 3736.22 | 665 | 633 | 189.2 |
| D | 3 | 224 | 205595 | 1083.36 | 665 | 633 | 189.2 |
| D | 5 | 173 | 50487 | 263.51 | 665 | 633 | 189.2 |
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 |  |