Observation information
- date-obs: 2025-05-24
- time-obs: 07:08:03.293100000
- date-end: 2025-05-24
- time-end: 09:03:09.276900000
- obs_id: C09_011T08_9000006472
- exposure: 801.764355183
- 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_011T08_9000006472_52219cztM0_level2.fits
| modeM0/AS1C09_011T08_9000006472_52219cztM0_level2_quad_clean.evt
|
| Size (bytes) | 805,959,360 | 68,385,600 |
| Size | 768.6 MB
| 65.2 MB
|
| Events in quadrant A | 3,212,391 | 555,476 |
| Events in quadrant B | 5,158,970 | 575,550 |
| Events in quadrant C | 6,873,551 | 460,349 |
| Events in quadrant D | 14,133,720 | 68,228 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13616 | 1 |
| B | 0 | 19464 | 3 |
| C | 0 | 24496 | 1 |
| D | 0 | 46006 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5876 | 84 | 1.429544% |
| B | 5876 | 383 | 6.518039% |
| C | 5876 | 1087 | 18.498979% |
| D | 5876 | 5216 | 88.767869% |
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 | 6906 | 5877 | 32 | 32 | 0.46% | 0.54% |  |
| B | 6906 | 5876 | 260 | 260 | 3.76% | 4.42% |  |
| C | 6906 | 5877 | 931 | 931 | 13.48% | 15.84% |  |
| D | 6906 | 5876 | 4950 | 4950 | 71.68% | 84.24% |  |
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 | 12 | 3 | 296433 | 1931.61 | 618 | 604 | 153.2 |
| A | 11 | 3 | 137286 | 892.46 | 618 | 604 | 153.2 |
| A | 3 | 145 | 68621 | 444.12 | 618 | 604 | 153.2 |
| B | 10 | 254 | 1380606 | 10766.58 | 598 | 578 | 128.2 |
| B | 5 | 32 | 726073 | 5660.1 | 598 | 578 | 128.2 |
| B | 4 | 171 | 173084 | 1345.84 | 598 | 578 | 128.2 |
| C | 15 | 224 | 1766828 | 11358.32 | 555 | 551 | 155.5 |
| C | 15 | 231 | 1495619 | 9614.27 | 555 | 551 | 155.5 |
| C | 15 | 192 | 515390 | 3310.75 | 555 | 551 | 155.5 |
| D | 6 | 42 | 8820915 | 110106.36 | 272 | 259 | 80.1 |
| D | 11 | 176 | 1986437 | 24793.04 | 272 | 259 | 80.1 |
| D | 15 | 93 | 1554069 | 19395.88 | 272 | 259 | 80.1 |
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 |  |