Observation information
- date-obs: 2019-08-26
- time-obs: 00:52:21.499300000
- date-end: 2019-08-27
- time-end: 08:08:06.469000000
- obs_id: T03_136T01_9000003124
- exposure: 41270.4107355
- 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_9000003124cztM0_level2.fits
| modeM0/AS1T03_136T01_9000003124cztM0_level2_quad_clean.evt
|
| Size (bytes) | 881,136,000 | 764,789,760 |
| Size | 840.3 MB
| 729.4 MB
|
| Events in quadrant A | 5,529,414 | 4,675,442 |
| Events in quadrant B | 5,319,054 | 4,684,769 |
| Events in quadrant C | 5,405,668 | 4,554,466 |
| Events in quadrant D | 4,038,768 | 2,864,169 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 195940 | 0 |
| B | 0 | 206189 | 0 |
| C | 0 | 192770 | 0 |
| D | 0 | 392825 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1896 | 0 |
| B | 0 | 1892 | 0 |
| C | 0 | 1898 | 0 |
| D | 0 | 1896 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 133 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 131 | 0 |
| D | 0 | 133 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 93124 | 1129 | 1.212362% |
| B | 93117 | 1673 | 1.796664% |
| C | 93121 | 1469 | 1.577517% |
| D | 93039 | 23026 | 24.748761% |
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 | 112546 | 93349 | 0 | 0 | 0.00% | 0.00% |  |
| B | 112546 | 93319 | 0 | 0 | 0.00% | 0.00% |  |
| C | 112546 | 93341 | 0 | 0 | 0.00% | 0.00% |  |
| D | 112546 | 92850 | 0 | 0 | 0.00% | 0.00% |  |
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 | 29 | 5474 | 11.68 | 1441 | 1348 | 353.2 |
| A | 7 | 110 | 4480 | 8.87 | 1441 | 1348 | 353.2 |
| A | 0 | 30 | 4391 | 8.61 | 1441 | 1348 | 353.2 |
| B | 2 | 9 | 4224 | 10.33 | 1409 | 1345 | 278.8 |
| B | 2 | 8 | 3637 | 8.22 | 1409 | 1345 | 278.8 |
| B | 14 | 254 | 3471 | 7.63 | 1409 | 1345 | 278.8 |
| C | 12 | 241 | 3733 | 6.55 | 1428 | 1332 | 366.7 |
| C | 2 | 191 | 3637 | 6.28 | 1428 | 1332 | 366.7 |
| C | 3 | 126 | 3608 | 6.21 | 1428 | 1332 | 366.7 |
| D | 3 | 14 | 2935 | 6.11 | 1155 | 1047 | 309.3 |
| D | 6 | 231 | 2906 | 6.01 | 1155 | 1047 | 309.3 |
| D | 10 | 189 | 2867 | 5.89 | 1155 | 1047 | 309.3 |
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 |  |