Observation information
- date-obs: 2022-03-01
- time-obs: 18:05:57.693600000
- date-end: 2022-03-02
- time-end: 12:51:58.625500000
- obs_id: A10_048T04_9000004984
- exposure: 15749.4226887
- sourceid: NGC 4984
- observer: chayan
- ra_pnt: 197.2383
- dec_pnt: -15.51631
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T04_9000004984cztM0_level2.fits
| modeM0/AS1A10_048T04_9000004984cztM0_level2_quad_clean.evt
|
| Size (bytes) | 468,673,920 | 320,592,960 |
| Size | 447.0 MB
| 305.7 MB
|
| Events in quadrant A | 2,913,108 | 1,700,829 |
| Events in quadrant B | 2,725,612 | 1,633,846 |
| Events in quadrant C | 2,892,264 | 1,641,082 |
| Events in quadrant D | 2,384,072 | 1,454,107 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 976 | 0 |
| B | 0 | 976 | 0 |
| C | 0 | 976 | 0 |
| D | 0 | 976 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 110511 | 0 |
| B | 0 | 129247 | 0 |
| C | 0 | 103084 | 0 |
| D | 0 | 156737 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 198 | 0 |
| B | 0 | 198 | 0 |
| C | 0 | 198 | 0 |
| D | 0 | 198 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 47751 | 352 | 0.737157% |
| B | 47751 | 3038 | 6.362170% |
| C | 47751 | 261 | 0.546585% |
| D | 47751 | 3415 | 7.151683% |
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 | 67562 | 47740 | 0 | 0 | 0.00% | 0.00% |  |
| B | 67562 | 47729 | 0 | 0 | 0.00% | 0.00% |  |
| C | 67562 | 47752 | 0 | 0 | 0.00% | 0.00% |  |
| D | 67562 | 47468 | 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 | 2355 | 8.9 | 761 | 717 | 184.1 |
| A | 7 | 110 | 2304 | 8.62 | 761 | 717 | 184.1 |
| A | 0 | 29 | 2242 | 8.28 | 761 | 717 | 184.1 |
| B | 2 | 9 | 2373 | 11.71 | 721 | 690 | 143.7 |
| B | 3 | 80 | 2141 | 10.1 | 721 | 690 | 143.7 |
| B | 2 | 8 | 1897 | 8.4 | 721 | 690 | 143.7 |
| C | 1 | 81 | 2359 | 8.44 | 764 | 718 | 194.5 |
| C | 1 | 80 | 2331 | 8.29 | 764 | 718 | 194.5 |
| C | 3 | 202 | 2284 | 8.05 | 764 | 718 | 194.5 |
| D | 6 | 67 | 1739 | 6.14 | 683 | 626 | 181.2 |
| D | 4 | 160 | 1727 | 6.08 | 683 | 626 | 181.2 |
| D | 7 | 3 | 1716 | 6.02 | 683 | 626 | 181.2 |
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 |  |