Observation information
- date-obs: 2018-05-26
- time-obs: 21:41:20.238100000
- date-end: 2018-05-26
- time-end: 22:57:28.230800000
- obs_id: G08_075T01_9000002120
- exposure: 1759.29485009
- sourceid: Cygnus X-1
- observer: ravibt
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_075T01_9000002120_14383cztM0_level2.evt
| modeM0/AS1G08_075T01_9000002120_14383cztM0_level2_quad_clean.evt
|
| Size (bytes) | 474,010,560 | 40,584,960 |
| Size | 452.1 MB
| 38.7 MB
|
| Events in quadrant A | 1,736,571 | 284,709 |
| Events in quadrant B | 1,926,851 | 285,460 |
| Events in quadrant C | 2,068,963 | 281,509 |
| Events in quadrant D | 8,387,923 | 131,191 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 72 | 0 |
| B | 0 | 72 | 0 |
| C | 0 | 72 | 0 |
| D | 0 | 72 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7340 | 2 |
| B | 0 | 7915 | 1 |
| C | 0 | 8514 | 1 |
| D | 0 | 27191 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3453 | 21 | 0.608167% |
| B | 3453 | 104 | 3.011874% |
| C | 3453 | 32 | 0.926730% |
| D | 3453 | 2905 | 84.129742% |
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 | 4569 | 3455 | 0 | 0 | 0.00% | 0.00% |  |
| B | 4569 | 3454 | 38 | 38 | 0.83% | 1.10% |  |
| C | 4569 | 3454 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4568 | 3453 | 2835 | 2835 | 62.06% | 82.10% |  |
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 | 12 | 189 | 24429 | 265.7 | 438 | 429 | 90.3 |
| A | 8 | 15 | 22258 | 241.67 | 438 | 429 | 90.3 |
| A | 0 | 226 | 3979 | 39.3 | 438 | 429 | 90.3 |
| B | 0 | 182 | 120906 | 1458.01 | 430 | 418 | 82.6 |
| B | 10 | 245 | 36166 | 432.58 | 430 | 418 | 82.6 |
| B | 0 | 229 | 25883 | 308.14 | 430 | 418 | 82.6 |
| C | 3 | 233 | 409246 | 4137.26 | 424 | 426 | 98.8 |
| C | 3 | 232 | 4511 | 41.34 | 424 | 426 | 98.8 |
| C | 3 | 234 | 3188 | 27.95 | 424 | 426 | 98.8 |
| D | 1 | 52 | 7553527 | 150122.18 | 202 | 197 | 50.3 |
| D | 2 | 120 | 36913 | 729.73 | 202 | 197 | 50.3 |
| D | 10 | 70 | 11032 | 215.35 | 202 | 197 | 50.3 |
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 |  |