Observation information
- date-obs: 2015-12-15
- time-obs: 04:45:07.214800000
- date-end: 2015-12-15
- time-end: 06:43:33.019400000
- obs_id: P01_997T03_9000000216
- exposure: 5844.31271474
- 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_01157cztM0_level2.evt
| modeM0/AS1P01_997T03_9000000216_01157cztM0_level2_quad_clean.evt
|
| Size (bytes) | 910,935,360 | 94,144,320 |
| Size | 868.7 MB
| 89.8 MB
|
| Events in quadrant A | 6,991,717 | 625,949 |
| Events in quadrant B | 7,194,970 | 628,174 |
| Events in quadrant C | 6,871,031 | 595,991 |
| Events in quadrant D | 6,139,304 | 590,283 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24958 | 2 |
| B | 0 | 25551 | 1 |
| C | 0 | 24544 | 1 |
| D | 0 | 22469 | 5 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5876 | 25 | 0.425459% |
| B | 5876 | 24 | 0.408441% |
| C | 5876 | 6 | 0.102110% |
| D | 5875 | 13 | 0.221277% |
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 | 7106 | 5876 | 169 | 169 | 2.38% | 2.88% |  |
| B | 7106 | 5877 | 203 | 203 | 2.86% | 3.45% |  |
| C | 7106 | 5876 | 155 | 155 | 2.18% | 2.64% |  |
| D | 7106 | 5876 | 116 | 116 | 1.63% | 1.97% |  |
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 | 4 | 32 | 29652 | 64.62 | 1810 | 1823 | 430.6 |
| A | 12 | 243 | 10348 | 19.8 | 1810 | 1823 | 430.6 |
| A | 13 | 164 | 9006 | 16.68 | 1810 | 1823 | 430.6 |
| B | 6 | 53 | 36392 | 78.13 | 1872 | 1881 | 441.7 |
| B | 15 | 22 | 19279 | 39.39 | 1872 | 1881 | 441.7 |
| B | 8 | 4 | 16143 | 32.29 | 1872 | 1881 | 441.7 |
| C | 15 | 241 | 257463 | 554.12 | 1663 | 1713 | 461.5 |
| C | 9 | 52 | 85785 | 182.15 | 1663 | 1713 | 461.5 |
| C | 3 | 111 | 18504 | 36.38 | 1663 | 1713 | 461.5 |
| D | 10 | 85 | 41573 | 79.69 | 1624 | 1679 | 500.6 |
| D | 2 | 152 | 20645 | 37.88 | 1624 | 1679 | 500.6 |
| D | 13 | 205 | 7129 | 10.89 | 1624 | 1679 | 500.6 |
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 |  |