Observation information
- date-obs: 2025-05-07
- time-obs: 15:58:21.598200000
- date-end: 2025-05-07
- time-end: 17:55:10.580900000
- obs_id: C09_011T06_9000006468
- exposure: 3967.83756822
- 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_51972cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51972cztM0_level2_quad_clean.evt
|
Size (bytes) | 663,808,320 | 77,800,320 |
Size | 633.1 MB
| 74.2 MB
|
Events in quadrant A | 5,693,173 | 511,966 |
Events in quadrant B | 4,344,118 | 574,007 |
Events in quadrant C | 8,250,317 | 367,663 |
Events in quadrant D | 5,826,419 | 488,513 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21078 | 1 |
B | 0 | 17164 | 3 |
C | 0 | 28650 | 1 |
D | 0 | 21452 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 120 | 0 |
B | 0 | 120 | 0 |
C | 0 | 120 | 0 |
D | 0 | 120 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5914 | 752 | 12.715590% |
B | 5913 | 491 | 8.303738% |
C | 5914 | 2206 | 37.301319% |
D | 5914 | 419 | 7.084883% |
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 | 7009 | 5915 | 555 | 555 | 7.92% | 9.38% |  |
B | 7008 | 5914 | 176 | 176 | 2.51% | 2.98% |  |
C | 7009 | 5915 | 1645 | 1645 | 23.47% | 27.81% |  |
D | 7009 | 5915 | 394 | 394 | 5.62% | 6.66% |  |
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 | 2148910 | 14414.37 | 591 | 575 | 149.0 |
A | 4 | 3 | 187902 | 1256.88 | 591 | 575 | 149.0 |
A | 4 | 249 | 179907 | 1203.24 | 591 | 575 | 149.0 |
B | 4 | 249 | 368130 | 2955.67 | 592 | 573 | 124.4 |
B | 4 | 206 | 327614 | 2629.86 | 592 | 573 | 124.4 |
B | 4 | 81 | 184903 | 1482.27 | 592 | 573 | 124.4 |
C | 15 | 224 | 5124395 | 37008.34 | 495 | 490 | 138.5 |
C | 15 | 147 | 717132 | 5176.08 | 495 | 490 | 138.5 |
C | 13 | 3 | 201433 | 1451.35 | 495 | 490 | 138.5 |
D | 6 | 42 | 1175690 | 6934.62 | 595 | 568 | 169.5 |
D | 10 | 199 | 764501 | 4508.11 | 595 | 568 | 169.5 |
D | 7 | 126 | 271580 | 1599.29 | 595 | 568 | 169.5 |
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 |  |