Observation information
- date-obs: 2017-07-12
- time-obs: 07:48:14.630000000
- date-end: 2017-07-12
- time-end: 09:55:18.631400000
- obs_id: G07_046T01_9000001374
- exposure: 2178.9070939
- sourceid: GRS 1915+105
- observer: jsyadav
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_046T01_9000001374_09669cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001374_09669cztM0_level2_quad_clean.evt
|
| Size (bytes) | 318,965,760 | 51,128,640 |
| Size | 304.2 MB
| 48.8 MB
|
| Events in quadrant A | 2,375,278 | 310,885 |
| Events in quadrant B | 2,368,476 | 318,600 |
| Events in quadrant C | 2,287,431 | 302,611 |
| Events in quadrant D | 2,315,034 | 293,834 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 38 |
| B | 0 | 124 | 24 |
| C | 0 | 123 | 26 |
| D | 0 | 124 | 34 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 3 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 3 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12880 | 3124 |
| B | 0 | 12917 | 3250 |
| C | 0 | 12726 | 3139 |
| D | 0 | 12948 | 3272 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4620 | 86 | 1.861472% |
| B | 4561 | 101 | 2.214427% |
| C | 4578 | 70 | 1.529052% |
| D | 4546 | 63 | 1.385834% |
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 | 7381 | 5346 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7382 | 5275 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7382 | 5341 | 2 | 2 | 0.03% | 0.04% |  |
| D | 7382 | 5319 | 0 | 0 | 0.00% | 0.00% |  |
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 | 8 | 15 | 5720 | 41.12 | 614 | 602 | 124.5 |
| A | 0 | 226 | 5715 | 41.08 | 614 | 602 | 124.5 |
| A | 12 | 194 | 4820 | 33.89 | 614 | 602 | 124.5 |
| B | 12 | 111 | 13385 | 110.26 | 603 | 588 | 116.1 |
| B | 6 | 51 | 12392 | 101.7 | 603 | 588 | 116.1 |
| B | 11 | 111 | 10971 | 89.46 | 603 | 588 | 116.1 |
| C | 9 | 54 | 5939 | 39.48 | 584 | 589 | 135.5 |
| C | 13 | 61 | 4313 | 27.48 | 584 | 589 | 135.5 |
| C | 14 | 234 | 2728 | 15.78 | 584 | 589 | 135.5 |
| D | 1 | 52 | 40457 | 264.76 | 579 | 569 | 150.7 |
| D | 8 | 195 | 38706 | 253.14 | 579 | 569 | 150.7 |
| D | 2 | 234 | 14826 | 94.63 | 579 | 569 | 150.7 |
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 |  |