Observation information
- date-obs: 2025-01-07
- time-obs: 23:14:36.605800000
- date-end: 2025-01-08
- time-end: 01:20:24.582800000
- obs_id: C09_003T01_9000006442
- exposure: 112.15123868
- sourceid: Cas A
- observer: chandrasunil
- ra_pnt: 350.85
- dec_pnt: 58.815
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_003T01_9000006442_50194cztM0_level2.fits
| modeM0/AS1C09_003T01_9000006442_50194cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,574,127,360 | 52,027,200 |
Size | 1.5 GB
| 49.6 MB
|
Events in quadrant A | 15,294,438 | 286,191 |
Events in quadrant B | 6,918,044 | 673,934 |
Events in quadrant C | 16,921,010 | 80,247 |
Events in quadrant D | 18,556,031 | 9,354 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 50651 | 0 |
B | 0 | 25718 | 0 |
C | 0 | 55382 | 0 |
D | 0 | 60280 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 150 | 0 |
B | 0 | 150 | 0 |
C | 0 | 150 | 0 |
D | 0 | 150 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7548 | 4720 | 62.533121% |
B | 7548 | 964 | 12.771595% |
C | 7547 | 6771 | 89.717769% |
D | 7548 | 7467 | 98.926868% |
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 | 7548 | 7548 | 4036 | 4036 | 53.47% | 53.47% |  |
B | 7548 | 7548 | 674 | 674 | 8.93% | 8.93% |  |
C | 7546 | 7546 | 5520 | 5520 | 73.15% | 73.15% |  |
D | 7547 | 7547 | 6819 | 6819 | 90.35% | 90.35% |  |
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 | 0 | 98 | 9678243 | 66968.17 | 556 | 540 | 144.5 |
A | 4 | 76 | 943000 | 6521.67 | 556 | 540 | 144.5 |
A | 12 | 250 | 402578 | 2782.04 | 556 | 540 | 144.5 |
B | 4 | 206 | 2512386 | 16002.44 | 735 | 711 | 157.0 |
B | 3 | 249 | 382618 | 2433.21 | 735 | 711 | 157.0 |
B | 5 | 185 | 263072 | 1671.56 | 735 | 711 | 157.0 |
C | 15 | 197 | 4060121 | 40365.41 | 344 | 341 | 100.6 |
C | 4 | 111 | 4053274 | 40297.33 | 344 | 341 | 100.6 |
C | 15 | 196 | 1245933 | 12384.62 | 344 | 341 | 100.6 |
D | 7 | 61 | 7458633 | 84593.66 | 259 | 247 | 88.2 |
D | 15 | 168 | 3460961 | 39251.72 | 259 | 247 | 88.2 |
D | 14 | 66 | 939853 | 10657.09 | 259 | 247 | 88.2 |
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 |  |