Observation information
- date-obs: 2020-11-24
- time-obs: 23:17:59.171500000
- date-end: 2020-11-25
- time-end: 01:25:35.171900000
- obs_id: A10_048T06_9000004030
- exposure: 4223.56919223
- sourceid: NGC 7755
- observer: chayan
- ra_pnt: 356.9654
- dec_pnt: -30.522
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T06_9000004030_27899cztM0_level2.evt
| modeM0/AS1A10_048T06_9000004030_27899cztM0_level2_quad_clean.evt
|
| Size (bytes) | 630,250,560 | 86,999,040 |
| Size | 601.1 MB
| 83.0 MB
|
| Events in quadrant A | 3,303,590 | 571,697 |
| Events in quadrant B | 3,498,629 | 573,228 |
| Events in quadrant C | 3,476,545 | 543,903 |
| Events in quadrant D | 8,319,048 | 442,354 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14645 | 0 |
| B | 0 | 15103 | 0 |
| C | 0 | 14871 | 0 |
| D | 0 | 29722 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7221 | 26 | 0.360061% |
| B | 7221 | 39 | 0.540091% |
| C | 7221 | 76 | 1.052486% |
| D | 7221 | 1647 | 22.808475% |
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 | 7656 | 7222 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7656 | 7221 | 3 | 3 | 0.04% | 0.04% |  |
| C | 7656 | 7221 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7656 | 7221 | 1382 | 1382 | 18.05% | 19.14% |  |
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 | 13 | 254 | 10814 | 57.59 | 854 | 836 | 173.2 |
| A | 3 | 137 | 8356 | 43.41 | 854 | 836 | 173.2 |
| A | 0 | 226 | 7254 | 37.04 | 854 | 836 | 173.2 |
| B | 0 | 230 | 99753 | 602.98 | 849 | 828 | 164.1 |
| B | 10 | 245 | 29617 | 175.48 | 849 | 828 | 164.1 |
| B | 12 | 111 | 20603 | 120.54 | 849 | 828 | 164.1 |
| C | 14 | 238 | 131205 | 678.22 | 817 | 821 | 192.2 |
| C | 3 | 233 | 120450 | 622.27 | 817 | 821 | 192.2 |
| C | 2 | 16 | 39453 | 200.95 | 817 | 821 | 192.2 |
| D | 1 | 52 | 3978544 | 23040.17 | 720 | 700 | 172.6 |
| D | 8 | 195 | 987985 | 5718.48 | 720 | 700 | 172.6 |
| D | 7 | 238 | 335670 | 1940.19 | 720 | 700 | 172.6 |
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 |  |