Observation information
- date-obs: 2022-01-08
- time-obs: 02:12:05.787400000
- date-end: 2022-01-08
- time-end: 04:26:31.791500000
- obs_id: T04_074T01_9000004852
- exposure: 2255.978724
- sourceid: V836 Tau
- observer: prasanta
- ra_pnt: 75.77746
- dec_pnt: 25.38875
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T04_074T01_9000004852_33956cztM0_level2.evt
| modeM0/AS1T04_074T01_9000004852_33956cztM0_level2_quad_clean.evt
|
| Size (bytes) | 502,427,520 | 52,594,560 |
| Size | 479.2 MB
| 50.2 MB
|
| Events in quadrant A | 2,639,372 | 314,628 |
| Events in quadrant B | 3,390,038 | 313,283 |
| Events in quadrant C | 3,204,017 | 307,783 |
| Events in quadrant D | 5,612,721 | 274,219 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 110 | 0 |
| B | 0 | 110 | 0 |
| C | 0 | 110 | 0 |
| D | 0 | 110 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26 | 0 |
| B | 0 | 26 | 0 |
| C | 0 | 26 | 0 |
| D | 0 | 27 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11174 | 3 |
| B | 0 | 13510 | 2 |
| C | 0 | 12510 | 2 |
| D | 0 | 20378 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5461 | 3 | 0.054935% |
| B | 5461 | 157 | 2.874931% |
| C | 5461 | 75 | 1.373375% |
| D | 5461 | 600 | 10.986999% |
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 | 7255 | 5462 | 2 | 2 | 0.03% | 0.04% |  |
| B | 7255 | 5462 | 93 | 93 | 1.28% | 1.70% |  |
| C | 7255 | 5462 | 55 | 55 | 0.76% | 1.01% |  |
| D | 7255 | 5462 | 526 | 526 | 7.25% | 9.63% |  |
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 | 15 | 169 | 26124 | 189.72 | 670 | 659 | 134.2 |
| A | 10 | 83 | 14550 | 103.49 | 670 | 659 | 134.2 |
| A | 13 | 6 | 12395 | 87.43 | 670 | 659 | 134.2 |
| B | 5 | 172 | 545860 | 4307.11 | 663 | 648 | 126.6 |
| B | 0 | 219 | 86895 | 681.34 | 663 | 648 | 126.6 |
| B | 0 | 229 | 47876 | 373.1 | 663 | 648 | 126.6 |
| C | 15 | 214 | 237220 | 1587.02 | 645 | 650 | 149.1 |
| C | 0 | 10 | 232090 | 1552.6 | 645 | 650 | 149.1 |
| C | 3 | 233 | 196924 | 1316.7 | 645 | 650 | 149.1 |
| D | 8 | 195 | 1203800 | 7865.02 | 618 | 602 | 153.0 |
| D | 12 | 6 | 565799 | 3694.56 | 618 | 602 | 153.0 |
| D | 12 | 233 | 328720 | 2144.83 | 618 | 602 | 153.0 |
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 |  |