Observation information
- date-obs: 2025-05-08
- time-obs: 21:05:24.355700000
- date-end: 2025-05-08
- time-end: 23:24:55.337000000
- obs_id: C09_011T06_9000006468
- exposure: 5272.70289284
- 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_51990cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51990cztM0_level2_quad_clean.evt
|
Size (bytes) | 698,028,480 | 89,331,840 |
Size | 665.7 MB
| 85.2 MB
|
Events in quadrant A | 7,486,712 | 508,362 |
Events in quadrant B | 5,426,342 | 639,077 |
Events in quadrant C | 5,714,473 | 580,679 |
Events in quadrant D | 6,706,869 | 521,455 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26748 | 3 |
B | 0 | 20740 | 2 |
C | 0 | 21628 | 2 |
D | 0 | 24517 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 18 | 0 |
B | 0 | 19 | 0 |
C | 0 | 19 | 0 |
D | 0 | 19 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6523 | 1457 | 22.336348% |
B | 6523 | 547 | 8.385712% |
C | 6523 | 610 | 9.351525% |
D | 6523 | 693 | 10.623946% |
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 | 7633 | 6524 | 1175 | 1175 | 15.39% | 18.01% |  |
B | 7633 | 6524 | 281 | 281 | 3.68% | 4.31% |  |
C | 7633 | 6524 | 528 | 528 | 6.92% | 8.09% |  |
D | 7633 | 6524 | 629 | 629 | 8.24% | 9.64% |  |
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 | 7 | 64 | 3006428 | 19439.11 | 612 | 596 | 154.6 |
A | 12 | 2 | 406095 | 2622.42 | 612 | 596 | 154.6 |
A | 4 | 95 | 344671 | 2225.18 | 612 | 596 | 154.6 |
B | 4 | 206 | 714932 | 5096.79 | 664 | 643 | 140.1 |
B | 8 | 3 | 711833 | 5074.67 | 664 | 643 | 140.1 |
B | 12 | 32 | 214282 | 1524.41 | 664 | 643 | 140.1 |
C | 15 | 224 | 1916949 | 10478.09 | 656 | 648 | 182.9 |
C | 13 | 3 | 704350 | 3847.75 | 656 | 648 | 182.9 |
C | 12 | 252 | 126338 | 687.26 | 656 | 648 | 182.9 |
D | 8 | 176 | 1222678 | 6773.05 | 629 | 601 | 180.4 |
D | 12 | 17 | 955830 | 5294.11 | 629 | 601 | 180.4 |
D | 6 | 42 | 633752 | 3509.08 | 629 | 601 | 180.4 |
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 |  |