Observation information
- date-obs: 2025-05-13
- time-obs: 02:11:16.517900000
- date-end: 2025-05-13
- time-end: 04:05:40.502800000
- obs_id: C09_011T06_9000006468
- exposure: 155.794389963
- 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_52052cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52052cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,045,684,800 | 53,985,600 |
Size | 997.2 MB
| 51.5 MB
|
Events in quadrant A | 3,814,675 | 578,372 |
Events in quadrant B | 12,894,113 | 20,522 |
Events in quadrant C | 4,372,160 | 565,593 |
Events in quadrant D | 17,118,905 | 12,679 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16668 | 606 |
B | 0 | 44997 | 2249 |
C | 0 | 18470 | 751 |
D | 0 | 58097 | 2766 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 138 | 8 |
B | 0 | 136 | 6 |
C | 0 | 137 | 5 |
D | 0 | 139 | 7 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6600 | 236 | 3.575758% |
B | 6525 | 6337 | 97.118774% |
C | 6576 | 313 | 4.759732% |
D | 6520 | 6401 | 98.174847% |
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 | 6650 | 6633 | 213 | 213 | 3.20% | 3.21% |  |
B | 6630 | 6552 | 3349 | 3349 | 50.51% | 51.11% |  |
C | 6648 | 6611 | 251 | 251 | 3.78% | 3.80% |  |
D | 6630 | 6537 | 6218 | 6218 | 93.79% | 95.12% |  |
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 | 3 | 95 | 556288 | 3379.55 | 653 | 636 | 164.4 |
A | 4 | 3 | 209912 | 1272.84 | 653 | 636 | 164.4 |
A | 5 | 240 | 91335 | 551.64 | 653 | 636 | 164.4 |
B | 12 | 32 | 11072237 | 533360.73 | 89 | 86 | 20.8 |
B | 8 | 3 | 1358890 | 65455.46 | 89 | 86 | 20.8 |
B | 10 | 254 | 30277 | 1454.34 | 89 | 86 | 20.8 |
C | 15 | 224 | 879893 | 4885.23 | 644 | 639 | 180.0 |
C | 1 | 242 | 487763 | 2706.51 | 644 | 639 | 180.0 |
C | 13 | 3 | 168414 | 932.18 | 644 | 639 | 180.0 |
D | 15 | 94 | 10727745 | 168730.91 | 205 | 194 | 63.6 |
D | 6 | 42 | 2326862 | 36595.57 | 205 | 194 | 63.6 |
D | 12 | 1 | 1038607 | 16332.93 | 205 | 194 | 63.6 |
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 |  |