Observation information
- date-obs: 2015-12-01
- time-obs: 21-47-18.000006400
- date-end: 2015-12-01
- time-end: 23-55-00.000006378
- obs_id: P01_998T01_9000000188
- exposure: 7466.05939315
- sourceid: NGC188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_998T01_9000000188_00961cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00961cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,357,600,320 | 113,342,400 |
| Size | 1.3 GB
| 108.1 MB
|
| Events in quadrant A | 9,452,334 | 746,851 |
| Events in quadrant B | 9,684,242 | 747,118 |
| Events in quadrant C | 10,487,726 | 726,247 |
| Events in quadrant D | 10,991,454 | 685,699 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33478 | 0 |
| B | 0 | 34119 | 0 |
| C | 0 | 36509 | 0 |
| D | 0 | 38103 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 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 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7567 | 13 | 0.171799% |
| B | 7567 | 29 | 0.383243% |
| C | 7568 | 16 | 0.211416% |
| D | 7568 | 633 | 8.364165% |
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 | 7662 | 7570 | 435 | 435 | 5.68% | 5.75% |  |
| B | 7662 | 7570 | 435 | 435 | 5.68% | 5.75% |  |
| C | 7663 | 7571 | 634 | 634 | 8.27% | 8.37% |  |
| D | 7663 | 7571 | 1306 | 1306 | 17.04% | 17.25% |  |
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 | 214 | 319519 | 560.05 | 2352 | 2371 | 566.3 |
| A | 15 | 233 | 81688 | 140.06 | 2352 | 2371 | 566.3 |
| A | 12 | 189 | 12481 | 17.85 | 2352 | 2371 | 566.3 |
| B | 5 | 249 | 63330 | 103.78 | 2478 | 2484 | 586.3 |
| B | 8 | 234 | 56593 | 92.29 | 2478 | 2484 | 586.3 |
| B | 0 | 153 | 32582 | 51.34 | 2478 | 2484 | 586.3 |
| C | 10 | 34 | 979622 | 1533.4 | 2285 | 2365 | 637.3 |
| C | 15 | 241 | 344731 | 537.2 | 2285 | 2365 | 637.3 |
| C | 1 | 192 | 165277 | 255.62 | 2285 | 2365 | 637.3 |
| D | 12 | 188 | 2420357 | 3718.04 | 2108 | 2181 | 650.4 |
| D | 10 | 85 | 312275 | 476.78 | 2108 | 2181 | 650.4 |
| D | 1 | 4 | 287636 | 438.9 | 2108 | 2181 | 650.4 |
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 |  |