Observation information
- date-obs: 2021-12-24
- time-obs: 22:32:06.357200000
- date-end: 2021-12-25
- time-end: 00:51:06.036900000
- obs_id: A11_037T01_9000004818
- exposure: 4711.70465863
- 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_9000004818_33746cztM0_level2.evt
| modeM0/AS1A11_037T01_9000004818_33746cztM0_level2_quad_clean.evt
|
| Size (bytes) | 555,762,240 | 90,408,960 |
| Size | 530.0 MB
| 86.2 MB
|
| Events in quadrant A | 3,520,676 | 592,663 |
| Events in quadrant B | 4,668,100 | 579,642 |
| Events in quadrant C | 3,191,633 | 597,824 |
| Events in quadrant D | 5,056,054 | 559,988 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 25 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14399 | 3 |
| B | 0 | 17811 | 2 |
| C | 0 | 12836 | 2 |
| D | 0 | 18882 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5826 | 210 | 3.604531% |
| B | 5826 | 614 | 10.538963% |
| C | 5826 | 68 | 1.167182% |
| D | 5826 | 322 | 5.526948% |
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 | 7260 | 5827 | 223 | 223 | 3.07% | 3.83% |  |
| B | 7260 | 5827 | 453 | 453 | 6.24% | 7.77% |  |
| C | 7260 | 5827 | 69 | 69 | 0.95% | 1.18% |  |
| D | 7260 | 5827 | 281 | 281 | 3.87% | 4.82% |  |
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 | 14 | 4 | 876893 | 6669.97 | 656 | 643 | 131.4 |
| A | 15 | 237 | 88796 | 671.02 | 656 | 643 | 131.4 |
| A | 13 | 254 | 10996 | 78.81 | 656 | 643 | 131.4 |
| B | 5 | 172 | 1340099 | 11080.65 | 637 | 618 | 120.9 |
| B | 0 | 229 | 211913 | 1747.9 | 637 | 618 | 120.9 |
| B | 4 | 251 | 192753 | 1589.4 | 637 | 618 | 120.9 |
| C | 15 | 214 | 253640 | 1682.12 | 654 | 658 | 150.4 |
| C | 0 | 10 | 175996 | 1165.85 | 654 | 658 | 150.4 |
| C | 9 | 187 | 133308 | 882.01 | 654 | 658 | 150.4 |
| D | 8 | 195 | 1509301 | 8657.03 | 634 | 623 | 174.3 |
| D | 12 | 233 | 347719 | 1991.69 | 634 | 623 | 174.3 |
| D | 2 | 250 | 239970 | 1373.41 | 634 | 623 | 174.3 |
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 |  |