Observation information
- date-obs: 2019-03-22
- time-obs: 07:39:29.662600000
- date-end: 2019-03-22
- time-end: 09:34:26.659900000
- obs_id: A05_173T01_9000002812
- exposure: 3333.56665257
- sourceid: GRS 1915+105
- observer: rawatdivya
- ra_pnt: 288.7991
- dec_pnt: 10.94602
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_173T01_9000002812_18816cztM0_level2.evt
| modeM0/AS1A05_173T01_9000002812_18816cztM0_level2_quad_clean.evt
|
| Size (bytes) | 426,424,320 | 82,909,440 |
| Size | 406.7 MB
| 79.1 MB
|
| Events in quadrant A | 3,008,887 | 542,119 |
| Events in quadrant B | 3,090,660 | 548,996 |
| Events in quadrant C | 3,472,862 | 518,140 |
| Events in quadrant D | 2,959,317 | 507,575 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 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 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12022 | 1 |
| B | 0 | 12370 | 1 |
| C | 0 | 13922 | 1 |
| D | 0 | 12175 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5627 | 69 | 1.226231% |
| B | 5628 | 89 | 1.581379% |
| C | 5627 | 118 | 2.097032% |
| D | 5627 | 64 | 1.137373% |
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 | 6897 | 5628 | 0 | 0 | 0.00% | 0.00% |  |
| B | 6898 | 5629 | 3 | 3 | 0.04% | 0.05% |  |
| C | 6897 | 5628 | 3 | 3 | 0.04% | 0.05% |  |
| D | 6897 | 5628 | 10 | 10 | 0.14% | 0.18% |  |
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 | 4 | 53259 | 339.11 | 765 | 752 | 154.8 |
| A | 4 | 2 | 10009 | 59.79 | 765 | 752 | 154.8 |
| A | 13 | 254 | 8436 | 49.63 | 765 | 752 | 154.8 |
| B | 4 | 171 | 31821 | 219.05 | 750 | 734 | 141.9 |
| B | 7 | 220 | 21591 | 146.97 | 750 | 734 | 141.9 |
| B | 4 | 216 | 20479 | 139.13 | 750 | 734 | 141.9 |
| C | 3 | 233 | 544969 | 3257.08 | 718 | 726 | 167.1 |
| C | 14 | 238 | 113251 | 673.42 | 718 | 726 | 167.1 |
| C | 0 | 207 | 9729 | 53.88 | 718 | 726 | 167.1 |
| D | 7 | 38 | 69696 | 385.66 | 735 | 716 | 178.9 |
| D | 12 | 110 | 53021 | 292.44 | 735 | 716 | 178.9 |
| D | 7 | 238 | 26437 | 143.81 | 735 | 716 | 178.9 |
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 |  |