Observation information
- date-obs: 2025-06-19
- time-obs: 14:45:16.841800000
- date-end: 2025-06-19
- time-end: 16:41:00.826900000
- obs_id: C09_011T06_9000006478
- exposure: 982.711989462
- 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_011T06_9000006478_52609cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006478_52609cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,015,248,960 | 57,384,000 |
| Size | 968.2 MB
| 54.7 MB
|
| Events in quadrant A | 3,478,173 | 566,765 |
| Events in quadrant B | 14,119,320 | 95,588 |
| Events in quadrant C | 6,863,913 | 446,625 |
| Events in quadrant D | 12,657,926 | 210,280 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14437 | 1 |
| B | 0 | 46026 | 1 |
| C | 0 | 24688 | 1 |
| D | 0 | 41709 | 3 |
| 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 | 5984 | 125 | 2.088904% |
| B | 5984 | 5207 | 87.015374% |
| C | 5985 | 1241 | 20.735171% |
| D | 5984 | 3940 | 65.842246% |
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 | 6944 | 5985 | 106 | 106 | 1.53% | 1.77% |  |
| B | 6944 | 5985 | 4567 | 4567 | 65.77% | 76.31% |  |
| C | 6945 | 5986 | 1171 | 1171 | 16.86% | 19.56% |  |
| D | 6944 | 5985 | 3682 | 3682 | 53.02% | 61.52% |  |
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 | 4 | 249 | 498564 | 3180.89 | 622 | 607 | 156.5 |
| A | 3 | 14 | 206771 | 1316.95 | 622 | 607 | 156.5 |
| A | 8 | 246 | 48385 | 305.2 | 622 | 607 | 156.5 |
| B | 10 | 128 | 9639157 | 134376.75 | 331 | 319 | 71.7 |
| B | 10 | 254 | 2081949 | 29020.37 | 331 | 319 | 71.7 |
| B | 1 | 255 | 310108 | 4318.82 | 331 | 319 | 71.7 |
| C | 15 | 248 | 3673282 | 23662.99 | 556 | 552 | 155.2 |
| C | 4 | 5 | 458540 | 2950.77 | 556 | 552 | 155.2 |
| C | 13 | 3 | 207695 | 1334.6 | 556 | 552 | 155.2 |
| D | 2 | 62 | 6017038 | 48568.82 | 424 | 403 | 123.9 |
| D | 6 | 42 | 1320663 | 10657.69 | 424 | 403 | 123.9 |
| D | 2 | 153 | 768085 | 6197.05 | 424 | 403 | 123.9 |
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 |  |