Observation information
- date-obs: 2015-10-14
- time-obs: 17:21:43.637400000
- date-end: 2015-10-14
- time-end: 19:25:48.635600000
- obs_id: P01_122T01_9000000026
- exposure: 4427.52715889
- sourceid: SSM12_GRS1915+105
- observer: anuj
- ra_pnt: 356.9365
- dec_pnt: 59.671
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_122T01_9000000026_00247cztM0_level2.evt
| modeM0/AS1P01_122T01_9000000026_00247cztM0_level2_quad_clean.evt
|
| Size (bytes) | 863,881,920 | 69,750,720 |
| Size | 823.9 MB
| 66.5 MB
|
| Events in quadrant A | 6,741,295 | 432,602 |
| Events in quadrant B | 6,637,829 | 440,393 |
| Events in quadrant C | 6,057,643 | 426,011 |
| Events in quadrant D | 6,343,970 | 411,833 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| 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 | 24115 | 2 |
| B | 0 | 23808 | 1 |
| C | 0 | 22095 | 1 |
| D | 0 | 22947 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5740 | 13 | 0.226481% |
| B | 5740 | 1 | 0.017422% |
| C | 5740 | 4 | 0.069686% |
| D | 5740 | 32 | 0.557491% |
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 | 7445 | 5741 | 147 | 147 | 1.97% | 2.56% |  |
| B | 7445 | 5741 | 73 | 73 | 0.98% | 1.27% |  |
| C | 7445 | 5741 | 49 | 49 | 0.66% | 0.85% |  |
| D | 7445 | 5741 | 187 | 187 | 2.51% | 3.26% |  |
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 | 195269 | 529.86 | 1658 | 1653 | 365.4 |
| A | 15 | 127 | 59361 | 157.93 | 1658 | 1653 | 365.4 |
| A | 13 | 17 | 32618 | 84.74 | 1658 | 1653 | 365.4 |
| B | 0 | 214 | 119123 | 298.39 | 1689 | 1699 | 393.5 |
| B | 5 | 46 | 22546 | 52.97 | 1689 | 1699 | 393.5 |
| B | 2 | 32 | 14917 | 33.59 | 1689 | 1699 | 393.5 |
| C | 9 | 68 | 51524 | 117.94 | 1518 | 1571 | 423.6 |
| C | 1 | 1 | 37153 | 84.01 | 1518 | 1571 | 423.6 |
| C | 9 | 54 | 6696 | 12.1 | 1518 | 1571 | 423.6 |
| D | 1 | 4 | 679074 | 1508.4 | 1423 | 1476 | 449.2 |
| D | 1 | 5 | 92315 | 202.22 | 1423 | 1476 | 449.2 |
| D | 10 | 154 | 80701 | 176.36 | 1423 | 1476 | 449.2 |
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 |  |