Observation information
- date-obs: 2015-12-14
- time-obs: 02:40:14.479600000
- date-end: 2015-12-14
- time-end: 03:28:28.045900000
- obs_id: P01_997T03_9000000216
- exposure: 2875.40000582
- 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_01141cztM0_level2.evt
| modeM0/AS1P01_997T03_9000000216_01141cztM0_level2_quad_clean.evt
|
| Size (bytes) | 409,645,440 | 42,949,440 |
| Size | 390.7 MB
| 41.0 MB
|
| Events in quadrant A | 3,207,449 | 274,759 |
| Events in quadrant B | 3,256,132 | 281,779 |
| Events in quadrant C | 3,005,824 | 272,427 |
| Events in quadrant D | 2,741,528 | 264,595 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11596 | 0 |
| B | 0 | 11717 | 0 |
| C | 0 | 10988 | 0 |
| D | 0 | 10226 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 58 | 0 |
| B | 0 | 58 | 0 |
| C | 0 | 58 | 0 |
| D | 0 | 58 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2895 | 0 | 0.000000% |
| B | 2895 | 0 | 0.000000% |
| C | 2895 | 0 | 0.000000% |
| D | 2895 | 0 | 0.000000% |
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 | 2895 | 2895 | 17 | 17 | 0.59% | 0.59% |  |
| B | 2895 | 2895 | 20 | 20 | 0.69% | 0.69% |  |
| C | 2895 | 2895 | 10 | 10 | 0.35% | 0.35% |  |
| D | 2895 | 2895 | 4 | 4 | 0.14% | 0.14% |  |
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 | 15 | 127 | 85807 | 435.52 | 812 | 819 | 195.1 |
| A | 12 | 243 | 6196 | 27.55 | 812 | 819 | 195.1 |
| A | 11 | 79 | 4554 | 19.14 | 812 | 819 | 195.1 |
| B | 0 | 220 | 26381 | 129.1 | 835 | 843 | 197.8 |
| B | 4 | 187 | 20483 | 99.29 | 835 | 843 | 197.8 |
| B | 8 | 38 | 15303 | 73.1 | 835 | 843 | 197.8 |
| C | 15 | 241 | 131160 | 646.68 | 725 | 748 | 201.7 |
| C | 9 | 83 | 9668 | 44.23 | 725 | 748 | 201.7 |
| C | 12 | 206 | 9598 | 43.88 | 725 | 748 | 201.7 |
| D | 2 | 16 | 86945 | 390.95 | 708 | 732 | 220.5 |
| D | 10 | 154 | 4047 | 15.03 | 708 | 732 | 220.5 |
| D | 13 | 252 | 3540 | 12.73 | 708 | 732 | 220.5 |
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 |  |