Observation information
- date-obs: 2021-02-02
- time-obs: 01:20:54.977300000
- date-end: 2021-02-02
- time-end: 03:28:20.977200000
- obs_id: A10_048T07_9000004148
- exposure: 4103.45277685
- sourceid: NGC 4394
- observer: chayan
- ra_pnt: 186.4817
- dec_pnt: 18.21389
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T07_9000004148_28922cztM0_level2.evt
| modeM0/AS1A10_048T07_9000004148_28922cztM0_level2_quad_clean.evt
|
| Size (bytes) | 539,398,080 | 93,323,520 |
| Size | 514.4 MB
| 89.0 MB
|
| Events in quadrant A | 3,205,373 | 604,133 |
| Events in quadrant B | 3,277,764 | 627,201 |
| Events in quadrant C | 4,264,832 | 583,718 |
| Events in quadrant D | 5,153,960 | 564,485 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13363 | 1 |
| B | 0 | 13523 | 1 |
| C | 0 | 16832 | 1 |
| D | 0 | 19593 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6401 | 56 | 0.874863% |
| B | 6402 | 79 | 1.233989% |
| C | 6402 | 219 | 3.420806% |
| D | 6402 | 320 | 4.998438% |
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 | 7646 | 6402 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7647 | 6403 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7647 | 6403 | 8 | 8 | 0.10% | 0.12% |  |
| D | 7647 | 6403 | 244 | 244 | 3.19% | 3.81% |  |
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 | 11231 | 63.11 | 830 | 815 | 165.0 |
| A | 3 | 137 | 7712 | 41.79 | 830 | 815 | 165.0 |
| A | 0 | 226 | 7057 | 37.82 | 830 | 815 | 165.0 |
| B | 12 | 111 | 19018 | 115.46 | 828 | 809 | 157.7 |
| B | 11 | 111 | 17012 | 102.74 | 828 | 809 | 157.7 |
| B | 0 | 190 | 16542 | 99.76 | 828 | 809 | 157.7 |
| C | 3 | 233 | 962408 | 5223.35 | 787 | 793 | 184.1 |
| C | 14 | 238 | 141989 | 766.96 | 787 | 793 | 184.1 |
| C | 15 | 208 | 43346 | 231.14 | 787 | 793 | 184.1 |
| D | 8 | 195 | 1391580 | 7504.84 | 785 | 766 | 185.3 |
| D | 1 | 52 | 774467 | 4174.9 | 785 | 766 | 185.3 |
| D | 2 | 234 | 23438 | 122.34 | 785 | 766 | 185.3 |
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 |  |