ASTROSAT CZTI

Data Quality Report

Orbit 04644

Creation date: 2024-06-27T14:45:00.485288
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/AS1G05_218T03_9000000582_04644cztM0_level2.evt modeM0/AS1G05_218T03_9000000582_04644cztM0_level2_quad_clean.evt
Size (bytes)476,475,84086,952,960
Size454.4 MB 82.9 MB
Events in quadrant A3,805,146559,482
Events in quadrant B3,138,920576,842
Events in quadrant C3,034,434552,667
Events in quadrant D4,026,386506,970

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157003
B0136852
C0134912
D0164692

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6269721.148509%
B6269360.574254%
C6269610.973042%
D62693034.833307%

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 7529 6270 39 39 0.52% 0.62%
B 7529 6270 5 5 0.07% 0.08%
C 7529 6270 25 25 0.33% 0.40%
D 7528 6269 278 278 3.69% 4.43%

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 14 111 949161 6386.53 736 719 148.5
A 7 16 12754 81.04 736 719 148.5
A 12 194 7415 45.09 736 719 148.5
B 15 204 122328 844.98 756 739 143.9
B 14 167 39612 270.15 756 739 143.9
B 4 80 37652 256.53 756 739 143.9
C 1 16 169199 1010.64 726 731 166.7
C 9 54 10459 58.36 726 731 166.7
C 9 247 7385 39.92 726 731 166.7
D 13 235 645933 3844.87 696 675 167.8
D 8 112 224855 1335.81 696 675 167.8
D 2 234 206972 1229.25 696 675 167.8

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