Observation information
- date-obs: 2019-03-22
- time-obs: 16:16:55.660200000
- date-end: 2019-03-23
- time-end: 04:49:05.655200000
- obs_id: A05_173T01_9000002812
- exposure: 20782.2294991
- 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_18828cztM0_level2.evt
| modeM0/AS1A05_173T01_9000002812_18828cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,479,705,920 | 428,650,560 |
| Size | 2.3 GB
| 408.8 MB
|
| Events in quadrant A | 15,984,189 | 2,766,842 |
| Events in quadrant B | 17,108,769 | 2,779,477 |
| Events in quadrant C | 15,887,516 | 2,681,572 |
| Events in quadrant D | 23,961,579 | 2,559,471 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 650 | 0 |
| B | 0 | 650 | 0 |
| C | 0 | 650 | 0 |
| D | 0 | 650 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33 | 0 |
| B | 0 | 33 | 0 |
| C | 0 | 33 | 0 |
| D | 0 | 33 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 67622 | 6 |
| B | 0 | 71356 | 6 |
| C | 0 | 67337 | 6 |
| D | 0 | 93398 | 6 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 31953 | 261 | 0.816825% |
| B | 31954 | 749 | 2.343994% |
| C | 31954 | 515 | 1.611692% |
| D | 31954 | 3364 | 10.527633% |
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 | 45130 | 31959 | 12 | 12 | 0.03% | 0.04% |  |
| B | 45131 | 31960 | 289 | 289 | 0.64% | 0.90% |  |
| C | 45131 | 31960 | 38 | 38 | 0.08% | 0.12% |  |
| D | 45131 | 31960 | 2879 | 2879 | 6.38% | 9.01% |  |
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 | 8 | 144 | 533697 | 674.06 | 3906 | 3821 | 786.1 |
| A | 15 | 174 | 187135 | 233.2 | 3906 | 3821 | 786.1 |
| A | 8 | 205 | 138855 | 171.78 | 3906 | 3821 | 786.1 |
| B | 4 | 251 | 591248 | 794.5 | 3886 | 3794 | 739.4 |
| B | 7 | 220 | 454412 | 609.44 | 3886 | 3794 | 739.4 |
| B | 6 | 36 | 193506 | 256.58 | 3886 | 3794 | 739.4 |
| C | 14 | 238 | 579217 | 658.05 | 3742 | 3772 | 874.5 |
| C | 0 | 207 | 267825 | 301.96 | 3742 | 3772 | 874.5 |
| C | 9 | 54 | 209920 | 235.74 | 3742 | 3772 | 874.5 |
| D | 12 | 110 | 6838205 | 7747.35 | 3605 | 3499 | 882.2 |
| D | 7 | 38 | 2611977 | 2956.79 | 3605 | 3499 | 882.2 |
| D | 1 | 52 | 557447 | 627.92 | 3605 | 3499 | 882.2 |
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 |  |