Observation information
- date-obs: 2017-06-05
- time-obs: 19:29:55.140500000
- date-end: 2017-06-05
- time-end: 21:48:15.138200000
- obs_id: G07_028T01_9000001272
- exposure: 4833.6820133
- sourceid: GRS 1915+105
- observer: santoshv
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_028T01_9000001272_09128cztM0_level2.evt
| modeM0/AS1G07_028T01_9000001272_09128cztM0_level2_quad_clean.evt
|
| Size (bytes) | 506,471,040 | 95,572,800 |
| Size | 483.0 MB
| 91.1 MB
|
| Events in quadrant A | 4,315,003 | 614,280 |
| Events in quadrant B | 3,133,873 | 624,937 |
| Events in quadrant C | 3,097,403 | 612,943 |
| Events in quadrant D | 4,346,959 | 584,404 |
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 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17362 | 35 |
| B | 0 | 13690 | 17 |
| C | 0 | 13664 | 23 |
| D | 0 | 17730 | 47 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6566 | 135 | 2.056046% |
| B | 6572 | 35 | 0.532562% |
| C | 6568 | 36 | 0.548112% |
| D | 6564 | 266 | 4.052407% |
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 | 7598 | 6577 | 55 | 55 | 0.72% | 0.84% |  |
| B | 7598 | 6578 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7598 | 6577 | 5 | 5 | 0.07% | 0.08% |  |
| D | 7598 | 6578 | 200 | 200 | 2.63% | 3.04% |  |
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 | 5 | 1117400 | 6955.07 | 783 | 767 | 160.5 |
| A | 4 | 2 | 79364 | 489.55 | 783 | 767 | 160.5 |
| A | 1 | 162 | 67087 | 413.08 | 783 | 767 | 160.5 |
| B | 0 | 214 | 53696 | 347.4 | 792 | 773 | 152.3 |
| B | 12 | 111 | 17306 | 108.53 | 792 | 773 | 152.3 |
| B | 11 | 111 | 14011 | 86.9 | 792 | 773 | 152.3 |
| C | 14 | 234 | 68020 | 372.34 | 771 | 776 | 180.6 |
| C | 9 | 68 | 17625 | 93.29 | 771 | 776 | 180.6 |
| C | 12 | 4 | 5957 | 28.69 | 771 | 776 | 180.6 |
| D | 1 | 52 | 1336788 | 6923.18 | 754 | 735 | 193.0 |
| D | 2 | 14 | 99974 | 514.24 | 754 | 735 | 193.0 |
| D | 2 | 234 | 23496 | 117.94 | 754 | 735 | 193.0 |
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 |  |