Observation information
- date-obs: 2016-07-23
- time-obs: 11:51:10.811900000
- date-end: 2016-07-23
- time-end: 13:50:19.805300000
- obs_id: G05_214T01_9000000552
- exposure: 4080.27468032
- 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/AS1G05_214T01_9000000552_04432cztM0_level2.evt
| modeM0/AS1G05_214T01_9000000552_04432cztM0_level2_quad_clean.evt
|
| Size (bytes) | 445,187,520 | 71,784,000 |
| Size | 424.6 MB
| 68.5 MB
|
| Events in quadrant A | 3,226,046 | 427,019 |
| Events in quadrant B | 3,402,709 | 438,177 |
| Events in quadrant C | 3,055,016 | 434,267 |
| Events in quadrant D | 3,346,824 | 411,202 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14052 | 2 |
| B | 0 | 14479 | 1 |
| C | 0 | 13681 | 1 |
| D | 0 | 14581 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6644 | 199 | 2.995184% |
| B | 6644 | 225 | 3.386514% |
| C | 6644 | 146 | 2.197471% |
| D | 6620 | 164 | 2.477341% |
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 | 7149 | 6645 | 14 | 14 | 0.20% | 0.21% |  |
| B | 7149 | 6645 | 33 | 33 | 0.46% | 0.50% |  |
| C | 7149 | 6645 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7149 | 6622 | 26 | 26 | 0.36% | 0.39% |  |
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 | 13 | 149152 | 914.41 | 790 | 771 | 162.3 |
| A | 0 | 50 | 30364 | 182.37 | 790 | 771 | 162.3 |
| A | 12 | 194 | 7896 | 43.91 | 790 | 771 | 162.3 |
| B | 14 | 167 | 250200 | 1615.92 | 797 | 777 | 154.4 |
| B | 15 | 204 | 48369 | 308.33 | 797 | 777 | 154.4 |
| B | 0 | 228 | 15523 | 95.53 | 797 | 777 | 154.4 |
| C | 9 | 247 | 21727 | 115.2 | 773 | 776 | 181.9 |
| C | 9 | 16 | 12216 | 62.91 | 773 | 776 | 181.9 |
| C | 13 | 61 | 6272 | 30.22 | 773 | 776 | 181.9 |
| D | 13 | 239 | 178065 | 962.1 | 762 | 739 | 184.3 |
| D | 12 | 16 | 93613 | 503.9 | 762 | 739 | 184.3 |
| D | 2 | 63 | 71579 | 384.35 | 762 | 739 | 184.3 |
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 |  |