Observation information
- date-obs: 2016-03-04
- time-obs: 11:22:15.935200000
- date-end: 2016-03-06
- time-end: 14:27:54.930800000
- obs_id: T01_030T01_9000000358
- exposure: 83549.8623275
- sourceid: GRS 1915+105
- observer: parag
- ra_pnt: 288.7983
- dec_pnt: 10.94556
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T01_030T01_9000000358cztM0_level2.fits
| modeM0/AS1T01_030T01_9000000358cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,385,055,360 | 1,486,848,960 |
| Size | 1.3 GB
| 1.4 GB
|
| Events in quadrant A | 8,343,942 | 9,022,693 |
| Events in quadrant B | 8,101,304 | 9,181,568 |
| Events in quadrant C | 8,159,318 | 8,639,544 |
| Events in quadrant D | 6,994,728 | 7,844,277 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 330224 | 0 |
| B | 0 | 320798 | 0 |
| C | 0 | 320345 | 0 |
| D | 0 | 333669 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 220 | 0 |
| B | 0 | 220 | 0 |
| C | 0 | 220 | 0 |
| D | 0 | 220 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3068 | 0 |
| B | 0 | 3068 | 0 |
| C | 0 | 3068 | 0 |
| D | 0 | 3068 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 150991 | 2791 | 1.848455% |
| B | 150993 | 2537 | 1.680210% |
| C | 150993 | 1926 | 1.275556% |
| D | 150992 | 2735 | 1.811354% |
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 | 183940 | 150993 | 0 | 0 | 0.00% | 0.00% |  |
| B | 183940 | 150991 | 0 | 0 | 0.00% | 0.00% |  |
| C | 183939 | 150989 | 0 | 0 | 0.00% | 0.00% |  |
| D | 183939 | 150983 | 0 | 0 | 0.00% | 0.00% |  |
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 | 188 | 8043 | 10.78 | 2165 | 2014 | 559.1 |
| A | 0 | 29 | 7827 | 10.4 | 2165 | 2014 | 559.1 |
| A | 7 | 110 | 7153 | 9.19 | 2165 | 2014 | 559.1 |
| B | 2 | 9 | 7091 | 12.35 | 2131 | 2026 | 410.0 |
| B | 12 | 226 | 6201 | 10.18 | 2131 | 2026 | 410.0 |
| B | 14 | 254 | 5824 | 9.26 | 2131 | 2026 | 410.0 |
| C | 2 | 191 | 5476 | 6.05 | 2163 | 1990 | 576.6 |
| C | 9 | 242 | 5424 | 5.96 | 2163 | 1990 | 576.6 |
| C | 1 | 80 | 5416 | 5.94 | 2163 | 1990 | 576.6 |
| D | 3 | 14 | 5222 | 6.1 | 2004 | 1817 | 558.1 |
| D | 11 | 82 | 5184 | 6.03 | 2004 | 1817 | 558.1 |
| D | 6 | 44 | 5099 | 5.88 | 2004 | 1817 | 558.1 |
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 |  |