Observation information
- date-obs: 2025-05-19
- time-obs: 02:15:57.318300000
- date-end: 2025-05-19
- time-end: 09:20:44.259600000
- obs_id: C09_011T07_9000006470
- exposure: 6499.72043175
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C09_011T07_9000006470_52144cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52144cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,915,138,880 | 270,645,120 |
| Size | 2.7 GB
| 258.1 MB
|
| Events in quadrant A | 13,557,250 | 2,153,194 |
| Events in quadrant B | 14,141,035 | 2,254,226 |
| Events in quadrant C | 26,485,166 | 1,649,449 |
| Events in quadrant D | 51,930,617 | 533,512 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 476 | 0 |
| B | 0 | 476 | 0 |
| C | 0 | 476 | 0 |
| D | 0 | 476 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 56226 | 4 |
| B | 0 | 58200 | 4 |
| C | 0 | 95082 | 4 |
| D | 0 | 170192 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 23272 | 525 | 2.255930% |
| B | 23273 | 1055 | 4.533150% |
| C | 23273 | 5002 | 21.492717% |
| D | 23273 | 17789 | 76.436214% |
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 | 25487 | 23276 | 293 | 293 | 1.15% | 1.26% |  |
| B | 25488 | 23277 | 621 | 621 | 2.44% | 2.67% |  |
| C | 25488 | 23276 | 4023 | 4023 | 15.78% | 17.28% |  |
| D | 25488 | 23273 | 16747 | 16747 | 65.71% | 71.96% |  |
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 | 3 | 114 | 1080027 | 1772.98 | 2456 | 2389 | 607.8 |
| A | 14 | 254 | 978698 | 1606.27 | 2456 | 2389 | 607.8 |
| A | 4 | 3 | 398230 | 651.26 | 2456 | 2389 | 607.8 |
| B | 4 | 81 | 2007089 | 3988.73 | 2405 | 2322 | 502.6 |
| B | 4 | 171 | 338209 | 668.29 | 2405 | 2322 | 502.6 |
| B | 0 | 171 | 319267 | 630.6 | 2405 | 2322 | 502.6 |
| C | 15 | 224 | 10371501 | 17165.29 | 2169 | 2147 | 604.1 |
| C | 14 | 245 | 1638007 | 2707.98 | 2169 | 2147 | 604.1 |
| C | 1 | 45 | 1041836 | 1721.09 | 2169 | 2147 | 604.1 |
| D | 6 | 42 | 36297224 | 88021.69 | 1447 | 1385 | 412.4 |
| D | 15 | 94 | 2040418 | 4944.9 | 1447 | 1385 | 412.4 |
| D | 11 | 176 | 1365669 | 3308.55 | 1447 | 1385 | 412.4 |
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 |  |