Observation information
- date-obs: 2018-04-05
- time-obs: 16:44:57.920200000
- date-end: 2018-04-06
- time-end: 13:15:31.891800000
- obs_id: G08_038T01_9000002018
- exposure: 24572.4772739
- sourceid: Her X-1
- observer: jsyadav
- ra_pnt: 254.4575
- dec_pnt: 35.34233
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_038T01_9000002018cztM0_level2.fits
| modeM0/AS1G08_038T01_9000002018cztM0_level2_quad_clean.evt
|
| Size (bytes) | 601,871,040 | 485,832,960 |
| Size | 574.0 MB
| 463.3 MB
|
| Events in quadrant A | 3,699,286 | 2,548,384 |
| Events in quadrant B | 3,542,986 | 2,600,257 |
| Events in quadrant C | 3,689,946 | 2,794,300 |
| Events in quadrant D | 2,999,868 | 2,475,067 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 129428 | 0 |
| B | 0 | 138740 | 0 |
| C | 0 | 129935 | 0 |
| D | 0 | 208649 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1280 | 0 |
| B | 0 | 1280 | 0 |
| C | 0 | 1276 | 0 |
| D | 0 | 1278 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 110 | 0 |
| B | 0 | 110 | 0 |
| C | 0 | 110 | 0 |
| D | 0 | 110 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 62600 | 479 | 0.765176% |
| B | 62603 | 982 | 1.568615% |
| C | 62598 | 362 | 0.578293% |
| D | 62576 | 5298 | 8.466505% |
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 | 73835 | 62648 | 0 | 0 | 0.00% | 0.00% |  |
| B | 73835 | 62635 | 0 | 0 | 0.00% | 0.00% |  |
| C | 73835 | 62640 | 0 | 0 | 0.00% | 0.00% |  |
| D | 73835 | 62507 | 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 | 3638 | 11.48 | 961 | 901 | 238.5 |
| A | 7 | 110 | 2966 | 8.66 | 961 | 901 | 238.5 |
| A | 0 | 30 | 2772 | 7.85 | 961 | 901 | 238.5 |
| B | 2 | 9 | 3037 | 11.42 | 937 | 895 | 187.6 |
| B | 14 | 254 | 2383 | 7.93 | 937 | 895 | 187.6 |
| B | 3 | 17 | 2346 | 7.74 | 937 | 895 | 187.6 |
| C | 1 | 81 | 2908 | 7.88 | 973 | 909 | 253.7 |
| C | 1 | 80 | 2893 | 7.82 | 973 | 909 | 253.7 |
| C | 1 | 65 | 2587 | 6.61 | 973 | 909 | 253.7 |
| D | 3 | 14 | 2248 | 6.3 | 859 | 782 | 232.9 |
| D | 6 | 67 | 2180 | 6.0 | 859 | 782 | 232.9 |
| D | 6 | 231 | 2172 | 5.97 | 859 | 782 | 232.9 |
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 |  |