Observation information
- date-obs: 2022-03-01
- time-obs: 18:05:57.693600000
- date-end: 2022-03-01
- time-end: 22:31:34.629500000
- obs_id: A10_048T04_9000004984
- exposure: 7569.00897604
- 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_9000004984_34736cztM0_level2.evt
| modeM0/AS1A10_048T04_9000004984_34736cztM0_level2_quad_clean.evt
|
| Size (bytes) | 893,459,520 | 149,221,440 |
| Size | 852.1 MB
| 142.3 MB
|
| Events in quadrant A | 5,873,672 | 944,489 |
| Events in quadrant B | 5,680,208 | 965,942 |
| Events in quadrant C | 6,181,796 | 941,137 |
| Events in quadrant D | 8,560,780 | 887,262 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 232 | 0 |
| B | 0 | 232 | 0 |
| C | 0 | 232 | 0 |
| D | 0 | 232 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24898 | 4 |
| B | 0 | 24030 | 3 |
| C | 0 | 25154 | 3 |
| D | 0 | 33398 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 46 | 0 |
| B | 0 | 46 | 0 |
| C | 0 | 46 | 0 |
| D | 0 | 46 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11277 | 61 | 0.540924% |
| B | 11277 | 68 | 0.602997% |
| C | 11277 | 112 | 0.993172% |
| D | 11277 | 335 | 2.970648% |
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 | 15937 | 11280 | 29 | 29 | 0.18% | 0.26% |  |
| B | 15937 | 11280 | 35 | 35 | 0.22% | 0.31% |  |
| C | 15937 | 11280 | 96 | 96 | 0.60% | 0.85% |  |
| D | 15937 | 11280 | 290 | 290 | 1.82% | 2.57% |  |
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 | 508114 | 1912.34 | 1325 | 1302 | 265.0 |
| A | 15 | 174 | 105820 | 394.37 | 1325 | 1302 | 265.0 |
| A | 10 | 83 | 78613 | 291.71 | 1325 | 1302 | 265.0 |
| B | 5 | 172 | 248376 | 964.24 | 1325 | 1290 | 256.2 |
| B | 4 | 232 | 87091 | 334.83 | 1325 | 1290 | 256.2 |
| B | 5 | 255 | 54817 | 208.89 | 1325 | 1290 | 256.2 |
| C | 15 | 214 | 474284 | 1568.08 | 1297 | 1307 | 301.6 |
| C | 0 | 207 | 368429 | 1217.14 | 1297 | 1307 | 301.6 |
| C | 0 | 10 | 128484 | 421.64 | 1297 | 1307 | 301.6 |
| D | 8 | 195 | 1537868 | 4933.5 | 1281 | 1248 | 311.5 |
| D | 1 | 52 | 495759 | 1587.69 | 1281 | 1248 | 311.5 |
| D | 2 | 249 | 484120 | 1550.32 | 1281 | 1248 | 311.5 |
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 |  |