Observation information
- date-obs: 2017-08-26
- time-obs: 07:52:39.296100000
- date-end: 2017-08-26
- time-end: 09:06:41.295500000
- obs_id: A03_112T01_9000001488
- exposure: 2137.11338913
- sourceid: NGC 1261
- observer: pandey
- ra_pnt: 48.06754
- dec_pnt: -55.21622
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_112T01_9000001488_10335cztM0_level2.evt
| modeM0/AS1A03_112T01_9000001488_10335cztM0_level2_quad_clean.evt
|
| Size (bytes) | 260,199,360 | 49,144,320 |
| Size | 248.1 MB
| 46.9 MB
|
| Events in quadrant A | 1,930,587 | 283,493 |
| Events in quadrant B | 1,832,733 | 309,294 |
| Events in quadrant C | 1,751,125 | 311,641 |
| Events in quadrant D | 2,110,621 | 320,672 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 174 | 92 |
| B | 0 | 174 | 89 |
| C | 0 | 174 | 93 |
| D | 0 | 166 | 84 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18639 | 10878 |
| B | 0 | 18224 | 10643 |
| C | 0 | 17370 | 9778 |
| D | 0 | 20218 | 11649 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3518 | 4 | 0.113701% |
| B | 3657 | 1 | 0.027345% |
| C | 3751 | 3 | 0.079979% |
| D | 3909 | 3 | 0.076746% |
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 | 4443 | 4175 | 0 | 0 | 0.00% | 0.00% |  |
| B | 4442 | 4263 | 0 | 0 | 0.00% | 0.00% |  |
| C | 4443 | 4324 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4443 | 4180 | 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 | 8 | 15 | 234515 | 2706.85 | 428 | 420 | 86.5 |
| A | 13 | 251 | 42491 | 486.47 | 428 | 420 | 86.5 |
| A | 0 | 226 | 3951 | 40.83 | 428 | 420 | 86.5 |
| B | 11 | 51 | 56230 | 673.06 | 443 | 435 | 82.9 |
| B | 4 | 239 | 24602 | 291.53 | 443 | 435 | 82.9 |
| B | 0 | 219 | 14848 | 173.86 | 443 | 435 | 82.9 |
| C | 14 | 234 | 3516 | 29.99 | 447 | 450 | 102.2 |
| C | 13 | 61 | 3192 | 26.82 | 447 | 450 | 102.2 |
| C | 4 | 254 | 2553 | 20.57 | 447 | 450 | 102.2 |
| D | 1 | 20 | 133892 | 1219.67 | 465 | 454 | 109.4 |
| D | 1 | 52 | 95159 | 865.63 | 465 | 454 | 109.4 |
| D | 8 | 195 | 53543 | 485.25 | 465 | 454 | 109.4 |
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 |  |