Observation information
- date-obs: 2018-01-12
- time-obs: 09:18:54.255600000
- date-end: 2018-01-12
- time-end: 11:21:39.030000000
- obs_id: A04_104T02_9000001838
- exposure: 6696.17603426
- sourceid: NGC 3516
- observer: KISHOR_NBU_APDC
- ra_pnt: 166.6979
- dec_pnt: 72.56853
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_104T02_9000001838_12393cztM0_level2.evt
| modeM0/AS1A04_104T02_9000001838_12393cztM0_level2_quad_clean.evt
|
| Size (bytes) | 603,164,160 | 121,368,960 |
| Size | 575.2 MB
| 115.7 MB
|
| Events in quadrant A | 5,175,050 | 814,794 |
| Events in quadrant B | 5,000,541 | 791,635 |
| Events in quadrant C | 2,968,044 | 820,807 |
| Events in quadrant D | 4,658,415 | 770,088 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19949 | 2 |
| B | 0 | 19398 | 1 |
| C | 0 | 13925 | 1 |
| D | 0 | 18556 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6870 | 400 | 5.822416% |
| B | 6834 | 742 | 10.857477% |
| C | 6870 | 32 | 0.465793% |
| D | 6870 | 317 | 4.614265% |
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 | 7366 | 6871 | 184 | 184 | 2.50% | 2.68% |  |
| B | 7366 | 6836 | 484 | 484 | 6.57% | 7.08% |  |
| C | 7366 | 6872 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7366 | 6871 | 278 | 278 | 3.77% | 4.05% |  |
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 | 251 | 1183343 | 7449.5 | 777 | 760 | 158.7 |
| A | 1 | 162 | 278223 | 1747.84 | 777 | 760 | 158.7 |
| A | 14 | 237 | 237676 | 1492.42 | 777 | 760 | 158.7 |
| B | 4 | 239 | 1257943 | 9019.58 | 742 | 723 | 139.4 |
| B | 2 | 32 | 402248 | 2880.63 | 742 | 723 | 139.4 |
| B | 2 | 48 | 143364 | 1023.34 | 742 | 723 | 139.4 |
| C | 14 | 234 | 8846 | 46.66 | 754 | 756 | 173.4 |
| C | 3 | 233 | 6022 | 30.37 | 754 | 756 | 173.4 |
| C | 5 | 252 | 5854 | 29.41 | 754 | 756 | 173.4 |
| D | 1 | 52 | 1228982 | 6856.48 | 741 | 717 | 179.1 |
| D | 10 | 199 | 121135 | 672.2 | 741 | 717 | 179.1 |
| D | 10 | 253 | 120515 | 668.74 | 741 | 717 | 179.1 |
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 |  |