Observation information
- date-obs: 2021-12-10
- time-obs: 01:35:26.107500000
- date-end: 2021-12-10
- time-end: 03:49:42.108100000
- obs_id: A11_037T01_9000004806
- exposure: 4417.42672628
- sourceid: NGC 2808
- observer: deepthisprabhu
- ra_pnt: 138.0129
- dec_pnt: -64.8625
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_037T01_9000004806_33526cztM0_level2.evt
| modeM0/AS1A11_037T01_9000004806_33526cztM0_level2_quad_clean.evt
|
| Size (bytes) | 506,545,920 | 91,411,200 |
| Size | 483.1 MB
| 87.2 MB
|
| Events in quadrant A | 2,351,743 | 614,163 |
| Events in quadrant B | 3,702,954 | 622,704 |
| Events in quadrant C | 3,447,990 | 610,831 |
| Events in quadrant D | 5,494,588 | 564,555 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30 | 0 |
| B | 0 | 30 | 0 |
| C | 0 | 30 | 0 |
| D | 0 | 31 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10239 | 3 |
| B | 0 | 14322 | 2 |
| C | 0 | 13306 | 2 |
| D | 0 | 19924 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 102 | 0 |
| B | 0 | 102 | 0 |
| C | 0 | 102 | 0 |
| D | 0 | 102 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5082 | 5 | 0.098386% |
| B | 5082 | 237 | 4.663518% |
| C | 5082 | 164 | 3.227076% |
| D | 5082 | 245 | 4.820937% |
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 | 7205 | 5083 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7205 | 5083 | 161 | 161 | 2.23% | 3.17% |  |
| C | 7205 | 5083 | 163 | 163 | 2.26% | 3.21% |  |
| D | 7205 | 5083 | 213 | 213 | 2.96% | 4.19% |  |
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 | 7 | 191 | 11602 | 91.53 | 602 | 590 | 120.3 |
| A | 13 | 254 | 9336 | 72.69 | 602 | 590 | 120.3 |
| A | 13 | 6 | 5686 | 42.36 | 602 | 590 | 120.3 |
| B | 5 | 172 | 540447 | 4789.21 | 601 | 585 | 112.7 |
| B | 4 | 170 | 262219 | 2321.0 | 601 | 585 | 112.7 |
| B | 0 | 213 | 245359 | 2171.43 | 601 | 585 | 112.7 |
| C | 1 | 23 | 338711 | 2473.81 | 597 | 603 | 136.7 |
| C | 15 | 214 | 236709 | 1727.5 | 597 | 603 | 136.7 |
| C | 0 | 10 | 216795 | 1581.8 | 597 | 603 | 136.7 |
| D | 8 | 195 | 2217203 | 14187.76 | 582 | 572 | 156.2 |
| D | 13 | 249 | 393897 | 2517.51 | 582 | 572 | 156.2 |
| D | 2 | 250 | 234912 | 1499.92 | 582 | 572 | 156.2 |
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 |  |