Observation information
- date-obs: 2025-05-07
- time-obs: 00:07:04.726700000
- date-end: 2025-05-07
- time-end: 02:21:07.708300000
- obs_id: C09_011T06_9000006468
- exposure: 2787.80713636
- 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_9000006468_51962cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51962cztM0_level2_quad_clean.evt
|
Size (bytes) | 698,209,920 | 54,812,160 |
Size | 665.9 MB
| 52.3 MB
|
Events in quadrant A | 6,466,254 | 323,026 |
Events in quadrant B | 2,974,171 | 469,060 |
Events in quadrant C | 8,480,168 | 250,022 |
Events in quadrant D | 7,553,023 | 279,802 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26348 | 3775 |
B | 0 | 14310 | 2104 |
C | 0 | 33099 | 4597 |
D | 0 | 28477 | 2712 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 12 |
B | 0 | 8 | 6 |
C | 0 | 17 | 15 |
D | 0 | 12 | 10 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 122 | 26 |
B | 0 | 128 | 32 |
C | 0 | 125 | 29 |
D | 0 | 117 | 21 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4804 | 1443 | 30.037469% |
B | 4807 | 136 | 2.829207% |
C | 4801 | 2361 | 49.177255% |
D | 4810 | 1662 | 34.553015% |
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 | 7903 | 4812 | 1154 | 1154 | 14.60% | 23.98% |  |
B | 7903 | 4819 | 101 | 101 | 1.28% | 2.10% |  |
C | 7903 | 4805 | 1852 | 1852 | 23.43% | 38.54% |  |
D | 7901 | 4816 | 1705 | 1705 | 21.58% | 35.40% |  |
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 | 159 | 2545535 | 25208.21 | 394 | 385 | 101.0 |
A | 7 | 64 | 834042 | 8256.88 | 394 | 385 | 101.0 |
A | 4 | 95 | 411011 | 4067.01 | 394 | 385 | 101.0 |
B | 5 | 185 | 438650 | 4346.9 | 468 | 452 | 100.8 |
B | 10 | 44 | 101113 | 998.55 | 468 | 452 | 100.8 |
B | 4 | 81 | 95749 | 945.34 | 468 | 452 | 100.8 |
C | 15 | 224 | 5374124 | 54127.54 | 347 | 343 | 99.3 |
C | 13 | 3 | 424334 | 4270.66 | 347 | 343 | 99.3 |
C | 15 | 192 | 382129 | 3845.55 | 347 | 343 | 99.3 |
D | 6 | 42 | 4787140 | 42711.81 | 389 | 370 | 112.1 |
D | 12 | 17 | 637848 | 5688.14 | 389 | 370 | 112.1 |
D | 2 | 120 | 92176 | 819.17 | 389 | 370 | 112.1 |
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 |  |