Observation information
- date-obs: 2019-03-23
- time-obs: 00:12:45.661200000
- date-end: 2019-03-23
- time-end: 02:59:24.658200000
- obs_id: A05_173T01_9000002812
- exposure: 5003.88479371
- sourceid: GRS 1915+105
- observer: rawatdivya
- ra_pnt: 288.7991
- dec_pnt: 10.94602
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_173T01_9000002812_18826cztM0_level2.evt
| modeM0/AS1A05_173T01_9000002812_18826cztM0_level2_quad_clean.evt
|
| Size (bytes) | 566,173,440 | 106,107,840 |
| Size | 539.9 MB
| 101.2 MB
|
| Events in quadrant A | 4,305,446 | 671,086 |
| Events in quadrant B | 4,265,980 | 681,569 |
| Events in quadrant C | 4,066,646 | 654,002 |
| Events in quadrant D | 3,954,153 | 638,950 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 168 | 0 |
| B | 0 | 168 | 0 |
| C | 0 | 168 | 0 |
| D | 0 | 168 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17979 | 2 |
| B | 0 | 17854 | 2 |
| C | 0 | 17116 | 2 |
| D | 0 | 17280 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8169 | 62 | 0.758967% |
| B | 8170 | 80 | 0.979192% |
| C | 8170 | 90 | 1.101591% |
| D | 8170 | 92 | 1.126071% |
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 | 9999 | 8171 | 3 | 3 | 0.03% | 0.04% |  |
| B | 10000 | 8172 | 5 | 5 | 0.05% | 0.06% |  |
| C | 10000 | 8172 | 5 | 5 | 0.05% | 0.06% |  |
| D | 10000 | 8172 | 50 | 50 | 0.50% | 0.61% |  |
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 | 14 | 4 | 228539 | 1102.58 | 1020 | 999 | 206.4 |
| A | 8 | 144 | 73064 | 349.2 | 1020 | 999 | 206.4 |
| A | 8 | 205 | 61651 | 293.9 | 1020 | 999 | 206.4 |
| B | 6 | 36 | 95569 | 484.54 | 1019 | 994 | 195.2 |
| B | 4 | 171 | 38850 | 193.95 | 1019 | 994 | 195.2 |
| B | 4 | 216 | 31901 | 158.35 | 1019 | 994 | 195.2 |
| C | 14 | 238 | 151003 | 654.56 | 975 | 982 | 229.2 |
| C | 3 | 233 | 46815 | 199.97 | 975 | 982 | 229.2 |
| C | 0 | 207 | 37280 | 158.37 | 975 | 982 | 229.2 |
| D | 15 | 0 | 164526 | 681.88 | 979 | 952 | 239.9 |
| D | 2 | 234 | 39546 | 160.89 | 979 | 952 | 239.9 |
| D | 7 | 38 | 23470 | 93.87 | 979 | 952 | 239.9 |
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 |  |