Observation information
- date-obs: 2015-12-14
- time-obs: 21:25:50.341000000
- date-end: 2015-12-14
- time-end: 23:49:54.030900000
- obs_id: P01_997T03_9000000216
- exposure: 6966.51011465
- sourceid: 4U 1847+78
- observer: annapurni
- ra_pnt: 280.5374
- dec_pnt: 79.77142
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_997T03_9000000216_01152cztM0_level2.evt
| modeM0/AS1P01_997T03_9000000216_01152cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,106,305,920 | 109,368,000 |
| Size | 1.0 GB
| 104.3 MB
|
| Events in quadrant A | 8,160,148 | 719,401 |
| Events in quadrant B | 8,703,805 | 708,500 |
| Events in quadrant C | 8,749,179 | 695,730 |
| Events in quadrant D | 7,426,575 | 700,478 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29201 | 3 |
| B | 0 | 30856 | 2 |
| C | 0 | 30943 | 2 |
| D | 0 | 27089 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7004 | 4 | 0.057110% |
| B | 7004 | 11 | 0.157053% |
| C | 7004 | 18 | 0.256996% |
| D | 7004 | 3 | 0.042833% |
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 | 8644 | 7006 | 142 | 142 | 1.64% | 2.03% |  |
| B | 8644 | 7006 | 252 | 252 | 2.92% | 3.60% |  |
| C | 8644 | 7006 | 288 | 288 | 3.33% | 4.11% |  |
| D | 8644 | 7006 | 100 | 100 | 1.16% | 1.43% |  |
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 | 11 | 79 | 10152 | 15.78 | 2125 | 2144 | 507.4 |
| A | 3 | 111 | 7102 | 9.77 | 2125 | 2144 | 507.4 |
| A | 13 | 9 | 6336 | 8.26 | 2125 | 2144 | 507.4 |
| B | 8 | 4 | 85781 | 160.67 | 2233 | 2249 | 519.9 |
| B | 0 | 220 | 38772 | 70.25 | 2233 | 2249 | 519.9 |
| B | 15 | 22 | 19713 | 33.59 | 2233 | 2249 | 519.9 |
| C | 15 | 241 | 317398 | 551.94 | 2047 | 2124 | 571.2 |
| C | 12 | 206 | 189510 | 328.05 | 2047 | 2124 | 571.2 |
| C | 9 | 83 | 157409 | 271.85 | 2047 | 2124 | 571.2 |
| D | 2 | 152 | 26960 | 40.7 | 1970 | 2045 | 612.2 |
| D | 13 | 252 | 19591 | 28.66 | 1970 | 2045 | 612.2 |
| D | 13 | 189 | 13954 | 19.45 | 1970 | 2045 | 612.2 |
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 |  |