Observation information
- date-obs: 2021-07-25
- time-obs: 23:08:23.156900000
- date-end: 2021-07-26
- time-end: 00:14:01.188300000
- obs_id: A10_048T04_9000004586
- exposure: 1781.56660609
- sourceid: NGC 4984
- observer: chayan
- ra_pnt: 197.2383
- dec_pnt: -15.51631
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T04_9000004586_31496cztM0_level2.evt
| modeM0/AS1A10_048T04_9000004586_31496cztM0_level2_quad_clean.evt
|
| Size (bytes) | 260,424,000 | 41,618,880 |
| Size | 248.4 MB
| 39.7 MB
|
| Events in quadrant A | 1,487,521 | 277,111 |
| Events in quadrant B | 2,247,954 | 278,961 |
| Events in quadrant C | 1,654,555 | 255,575 |
| Events in quadrant D | 2,312,742 | 255,360 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5947 | 1 |
| B | 0 | 8435 | 1 |
| C | 0 | 6436 | 1 |
| D | 0 | 8646 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 56 | 0 |
| B | 0 | 56 | 0 |
| C | 0 | 56 | 0 |
| D | 0 | 56 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2694 | 29 | 1.076466% |
| B | 2694 | 64 | 2.375650% |
| C | 2694 | 134 | 4.974016% |
| D | 2694 | 44 | 1.633259% |
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 | 3939 | 2695 | 0 | 0 | 0.00% | 0.00% |  |
| B | 3939 | 2694 | 0 | 0 | 0.00% | 0.00% |  |
| C | 3939 | 2694 | 70 | 70 | 1.78% | 2.60% |  |
| D | 3939 | 2694 | 17 | 17 | 0.43% | 0.63% |  |
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 | 13 | 7650 | 94.02 | 384 | 380 | 77.3 |
| A | 13 | 254 | 4600 | 54.58 | 384 | 380 | 77.3 |
| A | 3 | 137 | 3707 | 43.03 | 384 | 380 | 77.3 |
| B | 6 | 159 | 713266 | 9802.53 | 378 | 367 | 72.7 |
| B | 4 | 80 | 27253 | 369.68 | 378 | 367 | 72.7 |
| B | 0 | 190 | 10223 | 135.52 | 378 | 367 | 72.7 |
| C | 0 | 10 | 200207 | 2421.53 | 353 | 355 | 82.5 |
| C | 14 | 238 | 58211 | 701.02 | 353 | 355 | 82.5 |
| C | 12 | 249 | 7076 | 81.44 | 353 | 355 | 82.5 |
| D | 8 | 195 | 882490 | 10229.27 | 363 | 356 | 86.2 |
| D | 2 | 250 | 37792 | 434.11 | 363 | 356 | 86.2 |
| D | 2 | 234 | 10641 | 119.27 | 363 | 356 | 86.2 |
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 |  |