Observation information
- date-obs: 2015-10-14
- time-obs: 12:13:51.641500000
- date-end: 2015-10-14
- time-end: 14:16:43.640200000
- obs_id: P01_122T01_9000000026
- exposure: 4819.21750887
- 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_00244cztM0_level2.evt
| modeM0/AS1P01_122T01_9000000026_00244cztM0_level2_quad_clean.evt
|
| Size (bytes) | 932,872,320 | 75,101,760 |
| Size | 889.7 MB
| 71.6 MB
|
| Events in quadrant A | 7,027,986 | 474,741 |
| Events in quadrant B | 7,580,306 | 468,390 |
| Events in quadrant C | 6,030,123 | 477,362 |
| Events in quadrant D | 7,237,431 | 457,211 |
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 | 24900 | 2 |
| B | 0 | 26599 | 1 |
| C | 0 | 21975 | 1 |
| D | 0 | 25519 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5667 | 43 | 0.758779% |
| B | 5667 | 268 | 4.729134% |
| C | 5667 | 3 | 0.052938% |
| D | 5667 | 89 | 1.570496% |
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 | 7372 | 5668 | 256 | 256 | 3.47% | 4.52% |  |
| B | 7372 | 5668 | 524 | 524 | 7.11% | 9.24% |  |
| C | 7372 | 5668 | 42 | 42 | 0.57% | 0.74% |  |
| D | 7372 | 5668 | 400 | 400 | 5.43% | 7.06% |  |
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 | 352078 | 915.7 | 1717 | 1705 | 382.6 |
| A | 11 | 242 | 12821 | 29.05 | 1717 | 1705 | 382.6 |
| A | 15 | 17 | 9987 | 21.64 | 1717 | 1705 | 382.6 |
| B | 2 | 32 | 1059438 | 2657.61 | 1685 | 1698 | 398.0 |
| B | 10 | 14 | 27548 | 64.95 | 1685 | 1698 | 398.0 |
| B | 4 | 67 | 11561 | 24.78 | 1685 | 1698 | 398.0 |
| C | 9 | 68 | 18825 | 40.62 | 1524 | 1576 | 424.7 |
| C | 1 | 1 | 11003 | 22.2 | 1524 | 1576 | 424.7 |
| C | 9 | 54 | 8335 | 15.91 | 1524 | 1576 | 424.7 |
| D | 1 | 4 | 782795 | 1708.99 | 1457 | 1513 | 457.2 |
| D | 10 | 154 | 450662 | 982.48 | 1457 | 1513 | 457.2 |
| D | 1 | 5 | 137652 | 297.79 | 1457 | 1513 | 457.2 |
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 |  |