Observation information
- date-obs: 2024-08-17
- time-obs: 02:02:23.528000000
- date-end: 2024-08-17
- time-end: 21:31:17.431100000
- obs_id: A13_024T01_9000006394
- exposure: 24820.5807778
- sourceid: NGC 991
- observer: amrutha
- ra_pnt: 38.88617
- dec_pnt: -7.154436
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_024T01_9000006394cztM0_level2.fits
| modeM0/AS1A13_024T01_9000006394cztM0_level2_quad_clean.evt
|
| Size (bytes) | 391,308,480 | 399,441,600 |
| Size | 373.2 MB
| 380.9 MB
|
| Events in quadrant A | 2,288,570 | 2,426,737 |
| Events in quadrant B | 2,015,044 | 2,117,483 |
| Events in quadrant C | 2,401,428 | 2,363,488 |
| Events in quadrant D | 2,020,775 | 2,070,695 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 933 | 0 |
| B | 0 | 928 | 0 |
| C | 0 | 924 | 0 |
| D | 0 | 922 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 171114 | 0 |
| B | 0 | 90455 | 0 |
| C | 0 | 97436 | 0 |
| D | 0 | 118835 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 71 | 0 |
| B | 0 | 71 | 0 |
| C | 0 | 71 | 0 |
| D | 0 | 71 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 45184 | 2882 | 6.378364% |
| B | 45562 | 6882 | 15.104693% |
| C | 45504 | 877 | 1.927303% |
| D | 45445 | 2733 | 6.013863% |
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 | 69916 | 45590 | 0 | 0 | 0.00% | 0.00% |  |
| B | 69913 | 42339 | 0 | 0 | 0.00% | 0.00% |  |
| C | 69916 | 45871 | 0 | 0 | 0.00% | 0.00% |  |
| D | 69916 | 45822 | 0 | 0 | 0.00% | 0.00% |  |
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 | 110 | 1876 | 8.59 | 596 | 555 | 153.8 |
| A | 15 | 236 | 1837 | 8.34 | 596 | 555 | 153.8 |
| A | 14 | 95 | 1761 | 7.84 | 596 | 555 | 153.8 |
| B | 2 | 9 | 1968 | 13.42 | 531 | 502 | 109.2 |
| B | 2 | 8 | 1526 | 9.37 | 531 | 502 | 109.2 |
| B | 3 | 17 | 1478 | 8.94 | 531 | 502 | 109.2 |
| C | 1 | 81 | 1781 | 7.17 | 635 | 589 | 166.2 |
| C | 1 | 80 | 1765 | 7.07 | 635 | 589 | 166.2 |
| C | 3 | 202 | 1758 | 7.03 | 635 | 589 | 166.2 |
| D | 15 | 47 | 1540 | 6.35 | 578 | 523 | 160.2 |
| D | 10 | 189 | 1483 | 5.99 | 578 | 523 | 160.2 |
| D | 7 | 3 | 1470 | 5.91 | 578 | 523 | 160.2 |
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 |  |