Observation information
- date-obs: 2022-01-04
- time-obs: 22:14:59.828100000
- date-end: 2022-01-05
- time-end: 19:13:38.762200000
- obs_id: T04_091T01_9000004842
- exposure: 21906.5735219
- sourceid: ngc4509
- observer: jyoti
- ra_pnt: 188.2771
- dec_pnt: 32.0909
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T04_091T01_9000004842cztM0_level2.fits
| modeM0/AS1T04_091T01_9000004842cztM0_level2_quad_clean.evt
|
| Size (bytes) | 498,306,240 | 412,830,720 |
| Size | 475.2 MB
| 393.7 MB
|
| Events in quadrant A | 2,900,080 | 2,095,171 |
| Events in quadrant B | 2,923,722 | 2,386,226 |
| Events in quadrant C | 3,125,598 | 2,371,721 |
| Events in quadrant D | 2,496,680 | 2,010,412 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1084 | 0 |
| B | 0 | 1078 | 0 |
| C | 0 | 1078 | 0 |
| D | 0 | 1076 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 205 | 0 |
| B | 0 | 204 | 0 |
| C | 0 | 206 | 0 |
| D | 0 | 205 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 161712 | 0 |
| B | 0 | 144752 | 0 |
| C | 0 | 124465 | 0 |
| D | 0 | 212166 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 53089 | 7064 | 13.305958% |
| B | 53006 | 3897 | 7.351998% |
| C | 53072 | 671 | 1.264320% |
| D | 52938 | 7142 | 13.491254% |
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 | 75520 | 50924 | 0 | 0 | 0.00% | 0.00% |  |
| B | 75520 | 53156 | 0 | 0 | 0.00% | 0.00% |  |
| C | 75520 | 53257 | 0 | 0 | 0.00% | 0.00% |  |
| D | 75520 | 52692 | 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 | 9 | 19 | 2353 | 8.83 | 756 | 712 | 185.7 |
| A | 0 | 29 | 2268 | 8.38 | 756 | 712 | 185.7 |
| A | 7 | 110 | 2264 | 8.36 | 756 | 712 | 185.7 |
| B | 2 | 9 | 2480 | 11.56 | 774 | 742 | 150.4 |
| B | 3 | 80 | 2219 | 9.82 | 774 | 742 | 150.4 |
| B | 2 | 8 | 2026 | 8.54 | 774 | 742 | 150.4 |
| C | 1 | 81 | 2556 | 8.43 | 826 | 776 | 211.2 |
| C | 1 | 80 | 2509 | 8.21 | 826 | 776 | 211.2 |
| C | 3 | 202 | 2465 | 8.0 | 826 | 776 | 211.2 |
| D | 4 | 160 | 1845 | 6.23 | 716 | 655 | 191.1 |
| D | 6 | 38 | 1805 | 6.02 | 716 | 655 | 191.1 |
| D | 6 | 83 | 1803 | 6.01 | 716 | 655 | 191.1 |
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 |  |