Observation information
- date-obs: 2017-10-22
- time-obs: 08:15:27.570900000
- date-end: 2017-10-24
- time-end: 10:44:12.652600000
- obs_id: A04_171T01_9000001634
- exposure: 75580.5256192
- sourceid: NGC 424
- observer: sachi
- ra_pnt: 17.86511
- dec_pnt: -38.08347
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_171T01_9000001634cztM0_level2.fits
| modeM0/AS1A04_171T01_9000001634cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,437,577,920 | 1,296,552,960 |
| Size | 1.3 GB
| 1.2 GB
|
| Events in quadrant A | 8,329,560 | 7,171,096 |
| Events in quadrant B | 8,384,974 | 7,461,821 |
| Events in quadrant C | 8,750,322 | 7,337,003 |
| Events in quadrant D | 7,284,612 | 6,519,141 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3196 | 0 |
| B | 0 | 3192 | 0 |
| C | 0 | 3196 | 0 |
| D | 0 | 3200 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 448523 | 0 |
| B | 0 | 386977 | 0 |
| C | 0 | 323924 | 0 |
| D | 0 | 425472 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 215 | 0 |
| B | 0 | 215 | 0 |
| C | 0 | 215 | 0 |
| D | 0 | 215 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 157167 | 12557 | 7.989591% |
| B | 157289 | 8045 | 5.114789% |
| C | 157387 | 2229 | 1.416254% |
| D | 157255 | 8651 | 5.501256% |
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 | 181726 | 157306 | 0 | 0 | 0.00% | 0.00% |  |
| B | 181726 | 157601 | 0 | 0 | 0.00% | 0.00% |  |
| C | 181726 | 157652 | 0 | 0 | 0.00% | 0.00% |  |
| D | 181726 | 157473 | 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 | 0 | 29 | 8162 | 11.13 | 2171 | 2024 | 551.2 |
| A | 7 | 110 | 6889 | 8.83 | 2171 | 2024 | 551.2 |
| A | 0 | 30 | 6251 | 7.67 | 2171 | 2024 | 551.2 |
| B | 2 | 9 | 7312 | 11.94 | 2208 | 2092 | 437.1 |
| B | 2 | 8 | 5598 | 8.02 | 2208 | 2092 | 437.1 |
| B | 3 | 17 | 5594 | 8.01 | 2208 | 2092 | 437.1 |
| C | 1 | 80 | 6376 | 6.97 | 2311 | 2135 | 608.3 |
| C | 1 | 81 | 6351 | 6.93 | 2311 | 2135 | 608.3 |
| C | 12 | 241 | 6119 | 6.55 | 2311 | 2135 | 608.3 |
| D | 3 | 14 | 5461 | 6.39 | 2080 | 1881 | 560.5 |
| D | 6 | 231 | 5251 | 6.01 | 2080 | 1881 | 560.5 |
| D | 7 | 5 | 5141 | 5.82 | 2080 | 1881 | 560.5 |
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 |  |