Observation information
- date-obs: 2025-04-30
- time-obs: 10:25:01.296800000
- date-end: 2025-04-30
- time-end: 12:27:04.013000000
- obs_id: C09_011T05_9000006466
- exposure: 4708.02721149
- 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_011T05_9000006466_51864cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51864cztM0_level2_quad_clean.evt
|
Size (bytes) | 804,237,120 | 94,633,920 |
Size | 767.0 MB
| 90.2 MB
|
Events in quadrant A | 6,003,598 | 630,368 |
Events in quadrant B | 6,362,180 | 687,906 |
Events in quadrant C | 4,302,148 | 647,816 |
Events in quadrant D | 12,536,017 | 389,215 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 146 | 0 |
B | 0 | 146 | 0 |
C | 0 | 146 | 0 |
D | 0 | 146 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22827 | 1 |
B | 0 | 23933 | 0 |
C | 0 | 18040 | 0 |
D | 0 | 42291 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7322 | 555 | 7.579896% |
B | 7322 | 671 | 9.164163% |
C | 7322 | 101 | 1.379405% |
D | 7323 | 3089 | 42.182166% |
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 | 7322 | 7322 | 444 | 444 | 6.06% | 6.06% |  |
B | 7322 | 7322 | 533 | 533 | 7.28% | 7.28% |  |
C | 7322 | 7322 | 106 | 106 | 1.45% | 1.45% |  |
D | 7322 | 7322 | 3054 | 3054 | 41.71% | 41.71% |  |
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 | 250 | 1143700 | 6242.36 | 749 | 732 | 183.1 |
A | 11 | 3 | 485333 | 2646.66 | 749 | 732 | 183.1 |
A | 3 | 14 | 310353 | 1691.01 | 749 | 732 | 183.1 |
B | 12 | 32 | 1151395 | 7289.42 | 741 | 715 | 157.9 |
B | 10 | 44 | 1009417 | 6390.0 | 741 | 715 | 157.9 |
B | 5 | 250 | 298886 | 1888.87 | 741 | 715 | 157.9 |
C | 15 | 230 | 264923 | 1290.91 | 745 | 738 | 204.6 |
C | 15 | 219 | 242919 | 1183.39 | 745 | 738 | 204.6 |
C | 13 | 3 | 150768 | 733.1 | 745 | 738 | 204.6 |
D | 11 | 129 | 5147304 | 29990.81 | 618 | 596 | 171.6 |
D | 6 | 42 | 2432153 | 14169.13 | 618 | 596 | 171.6 |
D | 8 | 209 | 598378 | 3483.38 | 618 | 596 | 171.6 |
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 |  |