ASTROSAT CZTI

Data Quality Report

Orbit 48388

Creation date: 2024-09-26T11:54:49.472762
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_029T01_9000006426_48388cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48388cztM0_level2_quad_clean.evt
Size (bytes)633,214,08076,397,760
Size603.9 MB 72.9 MB
Events in quadrant A5,738,818608,305
Events in quadrant B11,915,422152,712
Events in quadrant C2,425,144612,606
Events in quadrant D2,935,113557,121

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211801
B0390001
C0111631
D0125691

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54702163.948812%
B5470439980.420475%
C5470200.365631%
D5470881.608775%

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 6635 5471 61 61 0.92% 1.11%
B 6635 5471 3823 3823 57.62% 69.88%
C 6635 5471 0 0 0.00% 0.00%
D 6635 5471 61 61 0.92% 1.11%

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 10 83 3133379 24113.3 625 613 129.9
A 13 248 181310 1390.85 625 613 129.9
A 13 254 11046 80.3 625 613 129.9
B 5 255 9865602 169782.32 289 281 58.1
B 12 16 855028 14710.21 289 281 58.1
B 4 21 38075 650.44 289 281 58.1
C 15 208 6332 38.95 618 622 146.6
C 14 67 5963 36.43 618 622 146.6
C 13 61 3950 22.7 618 622 146.6
D 2 165 366973 2374.21 619 600 154.3
D 2 249 134712 869.09 619 600 154.3
D 13 171 29882 189.76 619 600 154.3

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