Observation information
- date-obs: 2025-07-24
- time-obs: 02:18:38.190400000
- date-end: 2025-07-24
- time-end: 04:22:29.003100000
- obs_id: C09_011T07_9000006488
- exposure: 5245.96644419
- 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_9000006488_53122cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006488_53122cztM0_level2_quad_clean.evt
|
| Size (bytes) | 697,579,200 | 84,530,880 |
| Size | 665.3 MB
| 80.6 MB
|
| Events in quadrant A | 7,288,774 | 519,046 |
| Events in quadrant B | 6,845,885 | 591,242 |
| Events in quadrant C | 5,496,730 | 549,529 |
| Events in quadrant D | 5,706,751 | 462,798 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26076 | 9 |
| B | 0 | 24769 | 1 |
| C | 0 | 20702 | 1 |
| D | 0 | 21547 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6259 | 1154 | 18.437450% |
| B | 6260 | 802 | 12.811502% |
| C | 6260 | 458 | 7.316294% |
| D | 6260 | 1068 | 17.060703% |
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 | 7429 | 6258 | 952 | 952 | 12.81% | 15.21% |  |
| B | 7430 | 6260 | 564 | 564 | 7.59% | 9.01% |  |
| C | 7431 | 6261 | 508 | 508 | 6.84% | 8.11% |  |
| D | 7431 | 6261 | 1013 | 1013 | 13.63% | 16.18% |  |
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 | 9 | 191 | 4017833 | 26270.04 | 603 | 589 | 152.9 |
| A | 8 | 245 | 369090 | 2409.75 | 603 | 589 | 152.9 |
| A | 15 | 241 | 177808 | 1158.89 | 603 | 589 | 152.9 |
| B | 10 | 254 | 2518519 | 19252.5 | 618 | 598 | 130.8 |
| B | 1 | 255 | 1100728 | 8411.8 | 618 | 598 | 130.8 |
| B | 14 | 167 | 255711 | 1950.64 | 618 | 598 | 130.8 |
| C | 15 | 224 | 1363936 | 8127.26 | 608 | 603 | 167.7 |
| C | 0 | 240 | 872551 | 5197.96 | 608 | 603 | 167.7 |
| C | 1 | 241 | 228038 | 1355.81 | 608 | 603 | 167.7 |
| D | 12 | 3 | 2500413 | 15919.12 | 550 | 524 | 157.0 |
| D | 3 | 224 | 247273 | 1571.28 | 550 | 524 | 157.0 |
| D | 10 | 172 | 234564 | 1490.35 | 550 | 524 | 157.0 |
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 |  |