Observation information
- date-obs: 2015-10-15
- time-obs: 19:24:15.615600000
- date-end: 2015-10-15
- time-end: 21:29:53.616300000
- obs_id: P01_122T02_9000000028
- exposure: 4270.9326677
- sourceid: SSM3_GRS1915+105
- observer: anuj
- ra_pnt: 313.6703
- dec_pnt: 6.3611
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_122T02_9000000028_00263cztM0_level2.evt
| modeM0/AS1P01_122T02_9000000028_00263cztM0_level2_quad_clean.evt
|
| Size (bytes) | 862,637,760 | 65,782,080 |
| Size | 822.7 MB
| 62.7 MB
|
| Events in quadrant A | 6,427,834 | 402,641 |
| Events in quadrant B | 6,620,074 | 411,785 |
| Events in quadrant C | 6,138,987 | 397,804 |
| Events in quadrant D | 6,563,326 | 385,481 |
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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23088 | 3 |
| B | 0 | 23701 | 2 |
| C | 0 | 22247 | 2 |
| D | 0 | 23474 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5628 | 6 | 0.106610% |
| B | 5628 | 15 | 0.266525% |
| C | 5628 | 11 | 0.195451% |
| D | 5628 | 14 | 0.248756% |
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 | 7364 | 5629 | 119 | 119 | 1.62% | 2.11% |  |
| B | 7364 | 5629 | 151 | 151 | 2.05% | 2.68% |  |
| C | 7364 | 5629 | 70 | 70 | 0.95% | 1.24% |  |
| D | 7364 | 5629 | 178 | 178 | 2.42% | 3.16% |  |
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 | 250 | 47420 | 127.42 | 1634 | 1622 | 359.4 |
| A | 13 | 17 | 37557 | 99.98 | 1634 | 1622 | 359.4 |
| A | 13 | 160 | 13083 | 31.89 | 1634 | 1622 | 359.4 |
| B | 7 | 220 | 119717 | 307.05 | 1652 | 1660 | 384.5 |
| B | 8 | 54 | 50008 | 125.74 | 1652 | 1660 | 384.5 |
| B | 8 | 9 | 45355 | 113.64 | 1652 | 1660 | 384.5 |
| C | 9 | 54 | 101271 | 233.72 | 1526 | 1582 | 426.5 |
| C | 3 | 159 | 20579 | 44.54 | 1526 | 1582 | 426.5 |
| C | 2 | 192 | 15213 | 31.96 | 1526 | 1582 | 426.5 |
| D | 10 | 154 | 379319 | 830.53 | 1451 | 1508 | 454.9 |
| D | 1 | 4 | 202352 | 441.51 | 1451 | 1508 | 454.9 |
| D | 12 | 196 | 158122 | 344.28 | 1451 | 1508 | 454.9 |
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 |  |