Observation information
- date-obs: 2020-08-13
- time-obs: 02:40:42.625700000
- date-end: 2020-08-13
- time-end: 05:06:42.616500000
- obs_id: A09_088T01_9000003812
- exposure: 5649.75269996
- sourceid: NGC 1261
- observer: sharmila
- ra_pnt: 48.06754
- dec_pnt: -55.21622
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_088T01_9000003812_26362cztM0_level2.evt
| modeM0/AS1A09_088T01_9000003812_26362cztM0_level2_quad_clean.evt
|
| Size (bytes) | 722,257,920 | 112,625,280 |
| Size | 688.8 MB
| 107.4 MB
|
| Events in quadrant A | 3,433,871 | 757,928 |
| Events in quadrant B | 3,495,417 | 780,096 |
| Events in quadrant C | 4,526,554 | 736,563 |
| Events in quadrant D | 9,917,593 | 621,449 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15161 | 0 |
| B | 0 | 15223 | 0 |
| C | 0 | 17970 | 0 |
| D | 0 | 34499 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7385 | 85 | 1.150982% |
| B | 7386 | 116 | 1.570539% |
| C | 7386 | 376 | 5.090712% |
| D | 7386 | 2425 | 32.832386% |
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 | 8760 | 7387 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8761 | 7388 | 0 | 0 | 0.00% | 0.00% |  |
| C | 8761 | 7388 | 139 | 139 | 1.59% | 1.88% |  |
| D | 8761 | 7387 | 1750 | 1750 | 19.97% | 23.69% |  |
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 | 254 | 11274 | 58.29 | 890 | 868 | 178.5 |
| A | 3 | 137 | 8255 | 41.38 | 890 | 868 | 178.5 |
| A | 0 | 226 | 7507 | 37.19 | 890 | 868 | 178.5 |
| B | 0 | 230 | 23059 | 131.09 | 888 | 863 | 169.3 |
| B | 12 | 111 | 20937 | 118.55 | 888 | 863 | 169.3 |
| B | 11 | 111 | 18571 | 104.58 | 888 | 863 | 169.3 |
| C | 4 | 254 | 711354 | 3537.83 | 863 | 866 | 200.8 |
| C | 3 | 233 | 311391 | 1546.24 | 863 | 866 | 200.8 |
| C | 14 | 238 | 136156 | 673.67 | 863 | 866 | 200.8 |
| D | 7 | 80 | 5115208 | 29216.39 | 741 | 724 | 175.1 |
| D | 1 | 52 | 1816034 | 10369.92 | 741 | 724 | 175.1 |
| D | 11 | 176 | 121649 | 690.78 | 741 | 724 | 175.1 |
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 |  |