Observation information
- date-obs: 2015-12-14
- time-obs: 19:50:53.349700000
- date-end: 2015-12-14
- time-end: 22:01:52.032500000
- obs_id: P01_997T03_9000000216
- exposure: 6911.58042337
- 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_01151cztM0_level2.evt
| modeM0/AS1P01_997T03_9000000216_01151cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,140,226,560 | 103,138,560 |
| Size | 1.1 GB
| 98.4 MB
|
| Events in quadrant A | 9,424,818 | 655,967 |
| Events in quadrant B | 8,547,075 | 674,534 |
| Events in quadrant C | 8,642,407 | 654,705 |
| Events in quadrant D | 7,455,618 | 652,527 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33015 | 3 |
| B | 0 | 30335 | 2 |
| C | 0 | 30603 | 2 |
| D | 0 | 27168 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6970 | 360 | 5.164993% |
| B | 6970 | 8 | 0.114778% |
| C | 6970 | 14 | 0.200861% |
| D | 6970 | 14 | 0.200861% |
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 | 7700 | 6971 | 874 | 874 | 11.35% | 12.54% |  |
| B | 7700 | 6971 | 170 | 170 | 2.21% | 2.44% |  |
| C | 7700 | 6971 | 236 | 236 | 3.06% | 3.39% |  |
| D | 7700 | 6971 | 104 | 104 | 1.35% | 1.49% |  |
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 | 5 | 1449414 | 2913.12 | 2075 | 2095 | 496.8 |
| A | 12 | 243 | 13519 | 22.99 | 2075 | 2095 | 496.8 |
| A | 11 | 79 | 7826 | 11.54 | 2075 | 2095 | 496.8 |
| B | 8 | 4 | 24227 | 41.88 | 2221 | 2227 | 525.3 |
| B | 0 | 220 | 21995 | 37.63 | 2221 | 2227 | 525.3 |
| B | 15 | 22 | 19808 | 33.47 | 2221 | 2227 | 525.3 |
| C | 15 | 241 | 311920 | 541.47 | 2046 | 2121 | 572.1 |
| C | 12 | 206 | 201835 | 349.07 | 2046 | 2121 | 572.1 |
| C | 9 | 83 | 62279 | 105.15 | 2046 | 2121 | 572.1 |
| D | 13 | 138 | 34873 | 54.06 | 1962 | 2038 | 607.4 |
| D | 13 | 252 | 25714 | 38.98 | 1962 | 2038 | 607.4 |
| D | 2 | 152 | 20790 | 30.87 | 1962 | 2038 | 607.4 |
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 |  |