Observation information
- date-obs: 2016-08-26
- time-obs: 21:26:38.125700000
- date-end: 2016-08-27
- time-end: 00:59:40.122400000
- obs_id: G05_021T01_9000000624
- exposure: 11591.0654037
- sourceid: 4U 1626-67
- observer: parag
- ra_pnt: 248.07
- dec_pnt: -67.46194
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G05_021T01_9000000624_04944cztM0_level2.evt
| modeM0/AS1G05_021T01_9000000624_04944cztM0_level2_quad_clean.evt
|
| Size (bytes) | 961,885,440 | 178,954,560 |
| Size | 917.3 MB
| 170.7 MB
|
| Events in quadrant A | 9,053,012 | 1,099,479 |
| Events in quadrant B | 5,749,900 | 1,187,296 |
| Events in quadrant C | 5,095,294 | 1,195,117 |
| Events in quadrant D | 8,428,554 | 1,115,410 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 35592 | 2 |
| B | 0 | 25294 | 2 |
| C | 0 | 24097 | 2 |
| D | 0 | 33424 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 242 | 0 |
| B | 0 | 242 | 0 |
| C | 0 | 242 | 0 |
| D | 0 | 242 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11883 | 1639 | 13.792813% |
| B | 11883 | 136 | 1.144492% |
| C | 11883 | 27 | 0.227215% |
| D | 11883 | 571 | 4.805184% |
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 | 12783 | 11885 | 1467 | 1467 | 11.48% | 12.34% |  |
| B | 12782 | 11884 | 72 | 72 | 0.56% | 0.61% |  |
| C | 12783 | 11885 | 7 | 7 | 0.05% | 0.06% |  |
| D | 12783 | 11885 | 510 | 510 | 3.99% | 4.29% |  |
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 | 0 | 31 | 4236341 | 16635.68 | 1239 | 1209 | 254.6 |
| A | 15 | 31 | 26547 | 99.53 | 1239 | 1209 | 254.6 |
| A | 12 | 194 | 12673 | 45.03 | 1239 | 1209 | 254.6 |
| B | 15 | 204 | 236433 | 917.97 | 1334 | 1301 | 256.1 |
| B | 10 | 16 | 216119 | 838.66 | 1334 | 1301 | 256.1 |
| B | 0 | 219 | 64494 | 246.71 | 1334 | 1301 | 256.1 |
| C | 1 | 16 | 37617 | 121.89 | 1287 | 1290 | 298.0 |
| C | 9 | 247 | 22153 | 70.0 | 1287 | 1290 | 298.0 |
| C | 13 | 61 | 10571 | 31.14 | 1287 | 1290 | 298.0 |
| D | 2 | 33 | 1373243 | 4460.16 | 1258 | 1218 | 307.6 |
| D | 12 | 22 | 825229 | 2678.68 | 1258 | 1218 | 307.6 |
| D | 13 | 235 | 230285 | 744.65 | 1258 | 1218 | 307.6 |
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 |  |