Observation information
- date-obs: 2026-04-26
- time-obs: 00:29:11.701400000
- date-end: 2026-04-26
- time-end: 02:49:25.675500000
- obs_id: A14_070T08_9000006568
- exposure: 6637.59912795
- 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_57222cztM0_level2.fits
| modeM0/AS1A14_070T08_9000006568_57222cztM0_level2_quad_clean.evt
|
| Size (bytes) | 503,055,360 | 93,758,400 |
| Size | 479.8 MB
| 89.4 MB
|
| Events in quadrant A | 3,284,734 | 620,111 |
| Events in quadrant B | 4,203,576 | 636,793 |
| Events in quadrant C | 7,059,281 | 524,034 |
| Events in quadrant D | 3,491,529 | 536,121 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15710 | 2 |
| B | 0 | 17802 | 2 |
| C | 0 | 26343 | 2 |
| D | 0 | 16159 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7489 | 77 | 1.028175% |
| B | 7489 | 346 | 4.620109% |
| C | 7489 | 1078 | 14.394445% |
| D | 7489 | 72 | 0.961410% |
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 | 8315 | 7766 | 12 | 12 | 0.14% | 0.15% |  |
| B | 8315 | 7766 | 121 | 121 | 1.46% | 1.56% |  |
| C | 8315 | 7766 | 755 | 755 | 9.08% | 9.72% |  |
| D | 8315 | 7766 | 43 | 43 | 0.52% | 0.55% |  |
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 | 4 | 13 | 123747 | 627.7 | 794 | 775 | 195.9 |
| A | 10 | 251 | 44138 | 221.34 | 794 | 775 | 195.9 |
| A | 3 | 14 | 16741 | 81.5 | 794 | 775 | 195.9 |
| B | 10 | 16 | 597368 | 3608.48 | 773 | 744 | 165.3 |
| B | 5 | 185 | 197465 | 1189.8 | 773 | 744 | 165.3 |
| B | 10 | 247 | 82224 | 492.8 | 773 | 744 | 165.3 |
| C | 15 | 224 | 3852670 | 19481.35 | 727 | 718 | 197.7 |
| C | 12 | 254 | 292109 | 1473.72 | 727 | 718 | 197.7 |
| C | 14 | 254 | 35618 | 176.51 | 727 | 718 | 197.7 |
| D | 8 | 240 | 170558 | 794.97 | 763 | 727 | 213.6 |
| D | 7 | 96 | 62431 | 288.83 | 763 | 727 | 213.6 |
| D | 3 | 176 | 54909 | 253.62 | 763 | 727 | 213.6 |
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 |  |