Observation information
- date-obs: 2017-06-04
- time-obs: 08:26:30.262200000
- date-end: 2017-06-05
- time-end: 13:18:50.144900000
- obs_id: A03_105T01_9000001268
- exposure: 42681.3119523
- sourceid: 4U 1909+09
- observer: varun
- ra_pnt: 287.4042
- dec_pnt: 9.830278
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_105T01_9000001268cztM0_level2.fits
| modeM0/AS1A03_105T01_9000001268cztM0_level2_quad_clean.evt
|
| Size (bytes) | 851,938,560 | 761,160,960 |
| Size | 812.5 MB
| 725.9 MB
|
| Events in quadrant A | 5,152,405 | 4,411,272 |
| Events in quadrant B | 4,998,788 | 4,402,826 |
| Events in quadrant C | 5,065,606 | 4,166,925 |
| Events in quadrant D | 4,399,360 | 3,886,396 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 209023 | 0 |
| B | 0 | 188594 | 0 |
| C | 0 | 186082 | 0 |
| D | 0 | 201415 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1848 | 0 |
| B | 0 | 1846 | 0 |
| C | 0 | 1840 | 0 |
| D | 0 | 1844 | 0 |
| Mode M9 |
| 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 | 90192 | 1871 | 2.074463% |
| B | 90199 | 1521 | 1.686271% |
| C | 90222 | 986 | 1.092860% |
| D | 90136 | 1933 | 2.144537% |
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 | 103940 | 90638 | 0 | 0 | 0.00% | 0.00% |  |
| B | 103941 | 90623 | 0 | 0 | 0.00% | 0.00% |  |
| C | 103941 | 90645 | 0 | 0 | 0.00% | 0.00% |  |
| D | 103941 | 90604 | 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 | 0 | 29 | 5197 | 11.81 | 1337 | 1245 | 334.6 |
| A | 7 | 110 | 4205 | 8.85 | 1337 | 1245 | 334.6 |
| A | 0 | 30 | 4036 | 8.34 | 1337 | 1245 | 334.6 |
| B | 2 | 9 | 4193 | 11.12 | 1317 | 1249 | 264.6 |
| B | 3 | 17 | 3274 | 7.65 | 1317 | 1249 | 264.6 |
| B | 5 | 128 | 3250 | 7.56 | 1317 | 1249 | 264.6 |
| C | 1 | 80 | 3603 | 6.7 | 1336 | 1235 | 353.6 |
| C | 12 | 241 | 3575 | 6.62 | 1336 | 1235 | 353.6 |
| C | 1 | 81 | 3541 | 6.52 | 1336 | 1235 | 353.6 |
| D | 6 | 231 | 3337 | 6.55 | 1253 | 1133 | 336.5 |
| D | 3 | 14 | 3257 | 6.31 | 1253 | 1133 | 336.5 |
| D | 7 | 5 | 3102 | 5.85 | 1253 | 1133 | 336.5 |
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 |  |