Observation information
- date-obs: 2025-05-06
- time-obs: 20:30:24.758300000
- date-end: 2025-05-06
- time-end: 22:49:55.737600000
- obs_id: C09_011T06_9000006468
- exposure: 3796.51087725
- 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_51960cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51960cztM0_level2_quad_clean.evt
|
Size (bytes) | 930,934,080 | 78,082,560 |
Size | 887.8 MB
| 74.5 MB
|
Events in quadrant A | 10,788,615 | 374,368 |
Events in quadrant B | 5,004,032 | 646,807 |
Events in quadrant C | 9,461,676 | 444,179 |
Events in quadrant D | 8,708,017 | 448,414 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 36499 | 2 |
B | 0 | 19304 | 2 |
C | 0 | 32673 | 8 |
D | 0 | 30322 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19 | 0 |
B | 0 | 20 | 0 |
C | 0 | 20 | 0 |
D | 0 | 20 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6451 | 2948 | 45.698341% |
B | 6451 | 507 | 7.859247% |
C | 6450 | 2198 | 34.077519% |
D | 6450 | 1658 | 25.705426% |
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 | 7636 | 6452 | 2312 | 2312 | 30.28% | 35.83% |  |
B | 7636 | 6452 | 319 | 319 | 4.18% | 4.94% |  |
C | 7635 | 6450 | 1698 | 1698 | 22.24% | 26.33% |  |
D | 7635 | 6451 | 1506 | 1506 | 19.72% | 23.35% |  |
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 | 4202700 | 31429.61 | 526 | 512 | 133.7 |
A | 7 | 64 | 2009591 | 15026.59 | 526 | 512 | 133.7 |
A | 4 | 95 | 1395771 | 10435.62 | 526 | 512 | 133.7 |
B | 5 | 185 | 959303 | 6892.95 | 661 | 640 | 139.1 |
B | 10 | 41 | 323189 | 2319.18 | 661 | 640 | 139.1 |
B | 10 | 44 | 169126 | 1211.44 | 661 | 640 | 139.1 |
C | 15 | 224 | 5752290 | 35998.75 | 569 | 563 | 159.8 |
C | 13 | 3 | 339990 | 2124.4 | 569 | 563 | 159.8 |
C | 4 | 5 | 241780 | 1509.72 | 569 | 563 | 159.8 |
D | 6 | 42 | 1821428 | 10928.52 | 581 | 555 | 166.6 |
D | 2 | 172 | 1348732 | 8091.49 | 581 | 555 | 166.6 |
D | 0 | 5 | 829610 | 4975.83 | 581 | 555 | 166.6 |
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 |  |