Observation information
- date-obs: 2025-05-06
- time-obs: 03:36:20.891900000
- date-end: 2025-05-06
- time-end: 05:29:28.881200000
- obs_id: C09_011T06_9000006468
- exposure: 4801.58155608
- 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_51949cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51949cztM0_level2_quad_clean.evt
|
Size (bytes) | 910,152,000 | 79,237,440 |
Size | 868.0 MB
| 75.6 MB
|
Events in quadrant A | 9,090,909 | 454,388 |
Events in quadrant B | 4,596,762 | 641,921 |
Events in quadrant C | 9,426,980 | 431,856 |
Events in quadrant D | 10,051,943 | 397,263 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31686 | 2 |
B | 0 | 18604 | 0 |
C | 0 | 32846 | 0 |
D | 0 | 34537 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 136 | 0 |
B | 0 | 136 | 0 |
C | 0 | 136 | 0 |
D | 0 | 136 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6787 | 2094 | 30.853102% |
B | 6788 | 515 | 7.586918% |
C | 6788 | 2290 | 33.736005% |
D | 6788 | 2242 | 33.028874% |
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 | 6787 | 6787 | 1796 | 1796 | 26.46% | 26.46% |  |
B | 6788 | 6788 | 257 | 257 | 3.79% | 3.79% |  |
C | 6788 | 6788 | 1842 | 1842 | 27.14% | 27.14% |  |
D | 6788 | 6788 | 2175 | 2175 | 32.04% | 32.04% |  |
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 | 3601272 | 23820.0 | 602 | 587 | 151.2 |
A | 7 | 64 | 2445483 | 16173.99 | 602 | 587 | 151.2 |
A | 4 | 3 | 139654 | 919.99 | 602 | 587 | 151.2 |
B | 4 | 171 | 928744 | 6398.76 | 680 | 656 | 145.0 |
B | 4 | 201 | 166779 | 1145.34 | 680 | 656 | 145.0 |
B | 5 | 185 | 92689 | 634.52 | 680 | 656 | 145.0 |
C | 15 | 224 | 6479367 | 40820.86 | 564 | 557 | 158.7 |
C | 13 | 3 | 195504 | 1228.3 | 564 | 557 | 158.7 |
C | 15 | 193 | 126266 | 792.05 | 564 | 557 | 158.7 |
D | 12 | 16 | 4036812 | 25778.09 | 550 | 525 | 156.6 |
D | 12 | 17 | 2054724 | 13119.32 | 550 | 525 | 156.6 |
D | 3 | 12 | 565819 | 3610.3 | 550 | 525 | 156.6 |
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 |  |