Observation information
- date-obs: 2018-01-22
- time-obs: 17:14:55.378500000
- date-end: 2018-01-22
- time-end: 18:41:18.319000000
- obs_id: C02_016T01_9000001858
- exposure: 3970.9432297
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C02_016T01_9000001858_12546cztM0_level2.evt
| modeM0/AS1C02_016T01_9000001858_12546cztM0_level2_quad_clean.evt
|
| Size (bytes) | 298,085,760 | 77,094,720 |
| Size | 284.3 MB
| 73.5 MB
|
| Events in quadrant A | 2,108,656 | 517,951 |
| Events in quadrant B | 2,498,626 | 518,947 |
| Events in quadrant C | 1,807,671 | 522,522 |
| Events in quadrant D | 2,337,507 | 491,002 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9150 | 2 |
| B | 0 | 10247 | 1 |
| C | 0 | 8324 | 1 |
| D | 0 | 10105 | 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 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 84 | 0 |
| B | 0 | 84 | 0 |
| C | 0 | 84 | 0 |
| D | 0 | 84 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4023 | 28 | 0.695998% |
| B | 4023 | 263 | 6.537410% |
| C | 4023 | 21 | 0.521999% |
| D | 4023 | 161 | 4.001989% |
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 | 5185 | 4026 | 4 | 4 | 0.08% | 0.10% |  |
| B | 5185 | 4026 | 145 | 145 | 2.80% | 3.60% |  |
| C | 5185 | 4026 | 0 | 0 | 0.00% | 0.00% |  |
| D | 5185 | 4026 | 93 | 93 | 1.79% | 2.31% |  |
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 | 8 | 15 | 87757 | 894.65 | 473 | 464 | 97.6 |
| A | 1 | 162 | 74753 | 761.37 | 473 | 464 | 97.6 |
| A | 1 | 178 | 43351 | 439.54 | 473 | 464 | 97.6 |
| B | 4 | 239 | 594260 | 6676.5 | 467 | 455 | 88.9 |
| B | 0 | 205 | 44267 | 492.6 | 467 | 455 | 88.9 |
| B | 15 | 222 | 23404 | 258.03 | 467 | 455 | 88.9 |
| C | 13 | 61 | 3355 | 27.12 | 463 | 465 | 106.6 |
| C | 3 | 233 | 1717 | 11.75 | 463 | 465 | 106.6 |
| C | 8 | 222 | 1476 | 9.49 | 463 | 465 | 106.6 |
| D | 1 | 52 | 418409 | 3844.49 | 452 | 439 | 108.7 |
| D | 8 | 195 | 64007 | 584.7 | 452 | 439 | 108.7 |
| D | 13 | 104 | 58755 | 536.39 | 452 | 439 | 108.7 |
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 |  |