Observation information
- date-obs: 2025-07-22
- time-obs: 05:21:29.367400000
- date-end: 2025-07-22
- time-end: 07:12:15.353900000
- obs_id: C09_011T07_9000006488
- exposure: 1159.50791299
- 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_53094cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006488_53094cztM0_level2_quad_clean.evt
|
| Size (bytes) | 650,675,520 | 45,354,240 |
| Size | 620.5 MB
| 43.3 MB
|
| Events in quadrant A | 9,062,265 | 134,459 |
| Events in quadrant B | 2,583,779 | 453,758 |
| Events in quadrant C | 9,434,699 | 103,428 |
| Events in quadrant D | 2,662,365 | 370,664 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 112 | 16 |
| B | 0 | 110 | 20 |
| C | 0 | 111 | 21 |
| D | 0 | 110 | 18 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 37614 | 7807 |
| B | 0 | 12484 | 1650 |
| C | 0 | 38903 | 8032 |
| D | 0 | 13934 | 2743 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4263 | 3020 | 70.842130% |
| B | 4607 | 141 | 3.060560% |
| C | 4274 | 3195 | 74.754328% |
| D | 4502 | 175 | 3.887161% |
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 | 6619 | 4406 | 2654 | 2654 | 40.10% | 60.24% |  |
| B | 6629 | 4825 | 55 | 55 | 0.83% | 1.14% |  |
| C | 6604 | 4408 | 2999 | 2999 | 45.41% | 68.04% |  |
| D | 6616 | 4691 | 144 | 144 | 2.18% | 3.07% |  |
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 | 6469196 | 84607.83 | 304 | 297 | 76.5 |
| A | 6 | 248 | 713145 | 9323.46 | 304 | 297 | 76.5 |
| A | 7 | 206 | 233753 | 3053.41 | 304 | 297 | 76.5 |
| B | 2 | 249 | 272505 | 2690.27 | 470 | 455 | 101.1 |
| B | 14 | 167 | 227796 | 2248.15 | 470 | 455 | 101.1 |
| B | 10 | 247 | 58853 | 577.49 | 470 | 455 | 101.1 |
| C | 1 | 241 | 3522158 | 54951.1 | 227 | 224 | 64.1 |
| C | 10 | 171 | 2025500 | 31599.44 | 227 | 224 | 64.1 |
| C | 15 | 224 | 1375553 | 21458.62 | 227 | 224 | 64.1 |
| D | 12 | 17 | 608334 | 4700.57 | 450 | 431 | 129.3 |
| D | 12 | 3 | 50906 | 390.29 | 450 | 431 | 129.3 |
| D | 2 | 120 | 43518 | 333.17 | 450 | 431 | 129.3 |
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 |  |