Observation information
- date-obs: 2017-08-20
- time-obs: 03:06:03.319400000
- date-end: 2017-08-20
- time-end: 11:55:06.319300000
- obs_id: G07_011T03_9000001476
- exposure: 12553.4569444
- sourceid: NGC 6822
- observer: askpati
- ra_pnt: 296.2342
- dec_pnt: -14.79758
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_011T03_9000001476cztM0_level2.fits
| modeM0/AS1G07_011T03_9000001476cztM0_level2_quad_clean.evt
|
| Size (bytes) | 253,080,000 | 230,768,640 |
| Size | 241.4 MB
| 220.1 MB
|
| Events in quadrant A | 1,579,586 | 1,381,048 |
| Events in quadrant B | 1,499,458 | 1,373,286 |
| Events in quadrant C | 1,537,770 | 1,329,448 |
| Events in quadrant D | 1,315,996 | 1,172,796 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 516 | 0 |
| B | 0 | 520 | 0 |
| C | 0 | 520 | 0 |
| D | 0 | 524 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 52193 | 0 |
| B | 0 | 56408 | 0 |
| C | 0 | 51910 | 0 |
| D | 0 | 65272 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 59 | 0 |
| B | 0 | 59 | 0 |
| C | 0 | 59 | 0 |
| D | 0 | 59 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 25218 | 156 | 0.618606% |
| B | 25121 | 383 | 1.524621% |
| C | 25243 | 143 | 0.566494% |
| D | 25056 | 414 | 1.652299% |
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 | 31744 | 25687 | 0 | 0 | 0.00% | 0.00% |  |
| B | 31740 | 25628 | 0 | 0 | 0.00% | 0.00% |  |
| C | 31743 | 25694 | 0 | 0 | 0.00% | 0.00% |  |
| D | 31742 | 25374 | 0 | 0 | 0.00% | 0.00% |  |
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 | 0 | 29 | 1538 | 11.11 | 411 | 387 | 103.6 |
| A | 7 | 110 | 1250 | 8.33 | 411 | 387 | 103.6 |
| A | 0 | 30 | 1201 | 7.86 | 411 | 387 | 103.6 |
| B | 2 | 9 | 1301 | 11.5 | 397 | 381 | 80.0 |
| B | 5 | 128 | 989 | 7.6 | 397 | 381 | 80.0 |
| B | 2 | 8 | 981 | 7.5 | 397 | 381 | 80.0 |
| C | 1 | 80 | 1138 | 7.04 | 406 | 380 | 107.7 |
| C | 1 | 81 | 1106 | 6.74 | 406 | 380 | 107.7 |
| C | 3 | 126 | 1089 | 6.58 | 406 | 380 | 107.7 |
| D | 6 | 231 | 1004 | 6.58 | 375 | 342 | 100.7 |
| D | 3 | 14 | 975 | 6.29 | 375 | 342 | 100.7 |
| D | 10 | 189 | 932 | 5.86 | 375 | 342 | 100.7 |
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 |  |