Observation information
- date-obs: 2018-09-17
- time-obs: 21:00:28.965400000
- date-end: 2018-09-17
- time-end: 23:19:51.093000000
- obs_id: A04_230T01_9000002374
- exposure: 4643.11509843
- sourceid: Her X-1
- observer: sumanbala
- ra_pnt: 254.4575
- dec_pnt: 35.34233
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_230T01_9000002374_16071cztM0_level2.evt
| modeM0/AS1A04_230T01_9000002374_16071cztM0_level2_quad_clean.evt
|
| Size (bytes) | 580,628,160 | 96,477,120 |
| Size | 553.7 MB
| 92.0 MB
|
| Events in quadrant A | 3,830,378 | 622,137 |
| Events in quadrant B | 3,992,528 | 617,693 |
| Events in quadrant C | 3,648,557 | 596,593 |
| Events in quadrant D | 5,598,895 | 557,762 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16242 | 3 |
| B | 0 | 16907 | 2 |
| C | 0 | 15779 | 2 |
| D | 0 | 21755 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7583 | 88 | 1.160491% |
| B | 7583 | 187 | 2.466042% |
| C | 7583 | 110 | 1.450613% |
| D | 7583 | 570 | 7.516814% |
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 | 8364 | 7586 | 11 | 11 | 0.13% | 0.15% |  |
| B | 8364 | 7586 | 37 | 37 | 0.44% | 0.49% |  |
| C | 8364 | 7586 | 1 | 1 | 0.01% | 0.01% |  |
| D | 8364 | 7586 | 477 | 477 | 5.70% | 6.29% |  |
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 | 3 | 80 | 251845 | 1362.99 | 909 | 889 | 184.1 |
| A | 15 | 174 | 49078 | 261.72 | 909 | 889 | 184.1 |
| A | 15 | 239 | 24259 | 126.93 | 909 | 889 | 184.1 |
| B | 7 | 220 | 180575 | 1023.45 | 911 | 889 | 175.6 |
| B | 0 | 189 | 57589 | 322.95 | 911 | 889 | 175.6 |
| B | 0 | 190 | 32885 | 182.24 | 911 | 889 | 175.6 |
| C | 14 | 238 | 132984 | 631.2 | 879 | 885 | 209.3 |
| C | 0 | 207 | 44656 | 209.15 | 879 | 885 | 209.3 |
| C | 3 | 233 | 32908 | 153.01 | 879 | 885 | 209.3 |
| D | 1 | 52 | 1771298 | 8349.1 | 862 | 837 | 212.1 |
| D | 13 | 232 | 256897 | 1207.52 | 862 | 837 | 212.1 |
| D | 12 | 218 | 230259 | 1081.9 | 862 | 837 | 212.1 |
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 |  |