Observation information
- date-obs: 2019-08-27
- time-obs: 06:56:08.470400000
- date-end: 2019-08-27
- time-end: 08:08:06.469000000
- obs_id: T03_136T01_9000003124
- exposure: 2141.93887945
- sourceid: SAX J1808.4-3658
- observer: navinsridhar
- ra_pnt: 272.1147
- dec_pnt: -36.97897
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_136T01_9000003124_21155cztM0_level2.evt
| modeM0/AS1T03_136T01_9000003124_21155cztM0_level2_quad_clean.evt
|
| Size (bytes) | 370,733,760 | 43,441,920 |
| Size | 353.6 MB
| 41.4 MB
|
| Events in quadrant A | 2,029,481 | 266,191 |
| Events in quadrant B | 2,022,588 | 271,252 |
| Events in quadrant C | 1,932,577 | 263,596 |
| Events in quadrant D | 4,969,321 | 230,437 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8634 | 2 |
| B | 0 | 8513 | 2 |
| C | 0 | 8297 | 2 |
| D | 0 | 17434 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 84 | 0 |
| B | 0 | 84 | 0 |
| C | 0 | 84 | 0 |
| D | 0 | 84 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4008 | 146 | 3.642715% |
| B | 4008 | 140 | 3.493014% |
| C | 4008 | 153 | 3.817365% |
| D | 4009 | 998 | 24.893989% |
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 | 4318 | 4008 | 7 | 7 | 0.16% | 0.17% |  |
| B | 4318 | 4008 | 1 | 1 | 0.02% | 0.02% |  |
| C | 4318 | 4009 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4319 | 4010 | 756 | 756 | 17.50% | 18.85% |  |
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 | 5 | 16 | 85994 | 838.09 | 492 | 480 | 102.0 |
| A | 13 | 252 | 45669 | 442.88 | 492 | 480 | 102.0 |
| A | 13 | 254 | 5667 | 50.84 | 492 | 480 | 102.0 |
| B | 0 | 245 | 30312 | 306.57 | 492 | 478 | 97.3 |
| B | 0 | 197 | 17796 | 177.96 | 492 | 478 | 97.3 |
| B | 0 | 190 | 16833 | 168.06 | 492 | 478 | 97.3 |
| C | 14 | 238 | 71955 | 632.33 | 476 | 479 | 113.0 |
| C | 13 | 61 | 3404 | 25.88 | 476 | 479 | 113.0 |
| C | 3 | 233 | 3088 | 23.08 | 476 | 479 | 113.0 |
| D | 13 | 174 | 2448426 | 21559.33 | 458 | 444 | 113.5 |
| D | 1 | 239 | 371947 | 3271.82 | 458 | 444 | 113.5 |
| D | 7 | 238 | 159616 | 1401.82 | 458 | 444 | 113.5 |
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 |  |