Observation information
- date-obs: 2018-07-17
- time-obs: 07:54:00.303900000
- date-end: 2018-07-17
- time-end: 09:54:04.304500000
- obs_id: A04_218T03_9000002232
- exposure: 3927.54564148
- sourceid: SWIFT J2254.1-1734
- observer: gulabd
- ra_pnt: 343.5246
- dec_pnt: -17.58197
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_218T03_9000002232_15145cztM0_level2.evt
| modeM0/AS1A04_218T03_9000002232_15145cztM0_level2_quad_clean.evt
|
| Size (bytes) | 513,532,800 | 81,878,400 |
| Size | 489.7 MB
| 78.1 MB
|
| Events in quadrant A | 3,876,184 | 494,887 |
| Events in quadrant B | 3,843,199 | 507,211 |
| Events in quadrant C | 3,470,597 | 501,283 |
| Events in quadrant D | 3,880,305 | 481,329 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15818 | 2 |
| B | 0 | 15864 | 1 |
| C | 0 | 14833 | 1 |
| D | 0 | 16357 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 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 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7099 | 221 | 3.113115% |
| B | 7099 | 332 | 4.676715% |
| C | 7099 | 147 | 2.070714% |
| D | 7099 | 176 | 2.479222% |
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 | 7205 | 7100 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7205 | 7101 | 93 | 93 | 1.29% | 1.31% |  |
| C | 7205 | 7101 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7205 | 7101 | 13 | 13 | 0.18% | 0.18% |  |
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 | 15 | 239 | 526948 | 2952.01 | 866 | 846 | 178.2 |
| A | 12 | 189 | 13748 | 72.39 | 866 | 846 | 178.2 |
| A | 0 | 226 | 7871 | 39.42 | 866 | 846 | 178.2 |
| B | 3 | 64 | 290007 | 1742.37 | 853 | 828 | 166.0 |
| B | 10 | 245 | 47899 | 283.61 | 853 | 828 | 166.0 |
| B | 10 | 246 | 45518 | 269.27 | 853 | 828 | 166.0 |
| C | 3 | 233 | 156429 | 782.5 | 846 | 849 | 198.8 |
| C | 3 | 9 | 11120 | 51.66 | 846 | 849 | 198.8 |
| C | 13 | 61 | 6071 | 26.26 | 846 | 849 | 198.8 |
| D | 7 | 223 | 493920 | 2345.6 | 851 | 825 | 210.2 |
| D | 10 | 70 | 60533 | 284.02 | 851 | 825 | 210.2 |
| D | 2 | 16 | 59020 | 276.83 | 851 | 825 | 210.2 |
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 |  |