Observation information
- date-obs: 2015-10-14
- time-obs: 15:42:17.639400000
- date-end: 2015-10-14
- time-end: 17:42:39.637600000
- obs_id: P01_122T01_9000000026
- exposure: 4625.18571752
- 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_00246cztM0_level2.evt
| modeM0/AS1P01_122T01_9000000026_00246cztM0_level2_quad_clean.evt
|
| Size (bytes) | 857,805,120 | 73,408,320 |
| Size | 818.1 MB
| 70.0 MB
|
| Events in quadrant A | 6,706,972 | 464,189 |
| Events in quadrant B | 6,426,109 | 473,698 |
| Events in quadrant C | 5,752,315 | 460,317 |
| Events in quadrant D | 6,726,089 | 438,198 |
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 | 114 | 0 |
| B | 0 | 114 | 0 |
| C | 0 | 114 | 0 |
| D | 0 | 114 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23846 | 2 |
| B | 0 | 23030 | 1 |
| C | 0 | 21020 | 1 |
| D | 0 | 23902 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5517 | 44 | 0.797535% |
| B | 5517 | 3 | 0.054377% |
| C | 5517 | 3 | 0.054377% |
| D | 5517 | 70 | 1.268806% |
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 | 7222 | 5518 | 225 | 225 | 3.12% | 4.08% |  |
| B | 7222 | 5518 | 89 | 89 | 1.23% | 1.61% |  |
| C | 7222 | 5518 | 41 | 41 | 0.57% | 0.74% |  |
| D | 7222 | 5518 | 319 | 319 | 4.42% | 5.78% |  |
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 | 418509 | 1171.78 | 1610 | 1599 | 355.8 |
| A | 11 | 242 | 31369 | 83.67 | 1610 | 1599 | 355.8 |
| A | 15 | 127 | 12322 | 30.14 | 1610 | 1599 | 355.8 |
| B | 0 | 214 | 101022 | 260.89 | 1635 | 1648 | 380.9 |
| B | 2 | 32 | 30000 | 74.43 | 1635 | 1648 | 380.9 |
| B | 10 | 14 | 14277 | 33.16 | 1635 | 1648 | 380.9 |
| C | 9 | 68 | 35574 | 84.9 | 1447 | 1497 | 401.4 |
| C | 9 | 54 | 18148 | 41.49 | 1447 | 1497 | 401.4 |
| C | 1 | 1 | 17187 | 39.09 | 1447 | 1497 | 401.4 |
| D | 1 | 4 | 987596 | 2300.15 | 1369 | 1420 | 428.7 |
| D | 1 | 5 | 181281 | 419.51 | 1369 | 1420 | 428.7 |
| D | 10 | 154 | 101273 | 232.9 | 1369 | 1420 | 428.7 |
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 |  |