Observation information
- date-obs: 2015-12-13
- time-obs: 21:17:42.550600000
- date-end: 2015-12-13
- time-end: 21:59:48.054800000
- obs_id: P01_997T03_9000000216
- exposure: 2496.62897937
- 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_01137cztM0_level2.evt
| modeM0/AS1P01_997T03_9000000216_01137cztM0_level2_quad_clean.evt
|
| Size (bytes) | 371,900,160 | 36,486,720 |
| Size | 354.7 MB
| 34.8 MB
|
| Events in quadrant A | 2,692,280 | 233,912 |
| Events in quadrant B | 2,928,695 | 231,456 |
| Events in quadrant C | 2,897,331 | 230,268 |
| Events in quadrant D | 2,574,865 | 228,001 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9839 | 20 |
| B | 0 | 10518 | 24 |
| C | 0 | 10435 | 20 |
| D | 0 | 9489 | 20 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 50 | 0 |
| B | 0 | 50 | 0 |
| C | 0 | 50 | 0 |
| D | 0 | 50 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2519 | 1 | 0.039698% |
| B | 2519 | 5 | 0.198491% |
| C | 2519 | 0 | 0.000000% |
| D | 2519 | 34 | 1.349742% |
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 | 2519 | 2519 | 21 | 21 | 0.83% | 0.83% |  |
| B | 2519 | 2519 | 50 | 50 | 1.98% | 1.98% |  |
| C | 2520 | 2520 | 23 | 23 | 0.91% | 0.91% |  |
| D | 2519 | 2519 | 71 | 71 | 2.82% | 2.82% |  |
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 | 238 | 13836 | 77.16 | 696 | 700 | 170.2 |
| A | 0 | 175 | 4617 | 23.01 | 696 | 700 | 170.2 |
| A | 3 | 111 | 2330 | 9.57 | 696 | 700 | 170.2 |
| B | 14 | 3 | 39976 | 221.24 | 753 | 755 | 177.3 |
| B | 15 | 22 | 12895 | 68.48 | 753 | 755 | 177.3 |
| B | 4 | 222 | 5859 | 28.79 | 753 | 755 | 177.3 |
| C | 15 | 241 | 113810 | 572.56 | 701 | 726 | 197.5 |
| C | 0 | 236 | 29114 | 143.73 | 701 | 726 | 197.5 |
| C | 3 | 111 | 8051 | 37.08 | 701 | 726 | 197.5 |
| D | 2 | 16 | 150092 | 753.25 | 641 | 657 | 198.4 |
| D | 2 | 63 | 11310 | 53.7 | 641 | 657 | 198.4 |
| D | 13 | 169 | 6358 | 28.74 | 641 | 657 | 198.4 |
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 |  |