Observation information
- date-obs: 2022-01-06
- time-obs: 18:04:34.759100000
- date-end: 2022-01-07
- time-end: 10:08:14.761600000
- obs_id: A11_046T03_9000004848
- exposure: 26956.498778
- sourceid: NGC4485
- observer: samyaday
- ra_pnt: 187.633
- dec_pnt: 41.69272
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_046T03_9000004848cztM0_level2_bc.evt
| modeM0/AS1A11_046T03_9000004848cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,036,269,440 | 555,258,240 |
| Size | 1.9 GB
| 529.5 MB
|
| Events in quadrant A | 12,271,770 | 3,486,101 |
| Events in quadrant B | 12,431,093 | 3,582,227 |
| Events in quadrant C | 13,073,276 | 3,536,060 |
| Events in quadrant D | 21,022,508 | 3,318,913 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 854 | 0 |
| B | 0 | 866 | 0 |
| C | 0 | 870 | 0 |
| D | 0 | 864 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 145 | 0 |
| C | 0 | 145 | 0 |
| D | 0 | 145 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 100175 | 0 |
| B | 0 | 100562 | 0 |
| C | 0 | 97303 | 0 |
| D | 0 | 128087 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 42018 | 1252 | 2.979675% |
| B | 42269 | 1230 | 2.909934% |
| C | 42285 | 331 | 0.782783% |
| D | 42030 | 2202 | 5.239115% |
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 | 57821 | 42504 | 9 | 9 | 0.02% | 0.02% |  |
| B | 57821 | 42723 | 65 | 65 | 0.11% | 0.15% |  |
| C | 57821 | 42761 | 39 | 39 | 0.07% | 0.09% |  |
| D | 57821 | 42518 | 504 | 504 | 0.87% | 1.19% |  |
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 | 15 | 169 | 3472269 | 7122.04 | 2222 | 2192 | 487.2 |
| A | 13 | 254 | 65417 | 129.76 | 2222 | 2192 | 487.2 |
| A | 13 | 6 | 62565 | 123.91 | 2222 | 2192 | 487.2 |
| B | 5 | 172 | 2708402 | 6198.0 | 2228 | 2183 | 436.6 |
| B | 0 | 229 | 144188 | 325.23 | 2228 | 2183 | 436.6 |
| B | 4 | 251 | 139916 | 315.45 | 2228 | 2183 | 436.6 |
| C | 15 | 214 | 1726197 | 3476.3 | 2182 | 2162 | 495.9 |
| C | 0 | 10 | 982306 | 1976.34 | 2182 | 2162 | 495.9 |
| C | 3 | 233 | 941976 | 1895.02 | 2182 | 2162 | 495.9 |
| D | 8 | 195 | 5634453 | 10605.93 | 2150 | 2087 | 531.1 |
| D | 8 | 230 | 1746039 | 3283.92 | 2150 | 2087 | 531.1 |
| D | 2 | 250 | 1460363 | 2745.98 | 2150 | 2087 | 531.1 |
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 |  |