Observation information
- date-obs: 2019-01-03
- time-obs: 10:30:20.429300000
- date-end: 2019-01-03
- time-end: 12:38:05.432000000
- obs_id: A05_208T01_9000002614
- exposure: 4378.1787658
- sourceid: NGC 4939
- observer: KshamaSK
- ra_pnt: 196.0599
- dec_pnt: -10.3396
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_208T01_9000002614_17663cztM0_level2.evt
| modeM0/AS1A05_208T01_9000002614_17663cztM0_level2_quad_clean.evt
|
| Size (bytes) | 568,831,680 | 90,480,960 |
| Size | 542.5 MB
| 86.3 MB
|
| Events in quadrant A | 3,879,804 | 561,303 |
| Events in quadrant B | 3,842,596 | 572,636 |
| Events in quadrant C | 4,571,857 | 545,699 |
| Events in quadrant D | 4,426,261 | 540,180 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16245 | 1 |
| B | 0 | 16056 | 1 |
| C | 0 | 18637 | 1 |
| D | 0 | 18021 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7475 | 182 | 2.434783% |
| B | 7475 | 189 | 2.528428% |
| C | 7475 | 239 | 3.197324% |
| D | 7475 | 208 | 2.782609% |
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 | 7665 | 7476 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7665 | 7476 | 8 | 8 | 0.10% | 0.11% |  |
| C | 7665 | 7476 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7665 | 7476 | 39 | 39 | 0.51% | 0.52% |  |
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 | 14 | 237 | 335741 | 1775.92 | 921 | 897 | 188.5 |
| A | 0 | 226 | 8038 | 37.87 | 921 | 897 | 188.5 |
| A | 3 | 137 | 6825 | 31.44 | 921 | 897 | 188.5 |
| B | 0 | 229 | 61048 | 334.55 | 916 | 892 | 179.8 |
| B | 15 | 35 | 50460 | 275.67 | 916 | 892 | 179.8 |
| B | 7 | 220 | 45080 | 245.75 | 916 | 892 | 179.8 |
| C | 3 | 233 | 999546 | 4786.18 | 881 | 886 | 208.7 |
| C | 14 | 238 | 133351 | 634.85 | 881 | 886 | 208.7 |
| C | 13 | 61 | 6257 | 25.74 | 881 | 886 | 208.7 |
| D | 5 | 222 | 421465 | 1896.64 | 901 | 875 | 221.8 |
| D | 1 | 52 | 287792 | 1293.84 | 901 | 875 | 221.8 |
| D | 10 | 70 | 79894 | 356.33 | 901 | 875 | 221.8 |
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 |  |