ASTROSAT CZTI

Data Quality Report

Orbit 29413

Creation date: 2024-06-27T20:03:51.964450
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/AS1A10_102T11_9000004230_29413cztM0_level2.evt modeM0/AS1A10_102T11_9000004230_29413cztM0_level2_quad_clean.evt
Size (bytes)636,114,24082,160,640
Size606.6 MB 78.4 MB
Events in quadrant A2,844,510550,230
Events in quadrant B4,216,809531,336
Events in quadrant C7,090,093506,658
Events in quadrant D4,739,922512,703

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115391
B0157661
C0249941
D0178951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5528290.524602%
B552960710.978477%
C5529119921.685657%
D55293766.800506%

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 6858 5529 0 0 0.00% 0.00%
B 6859 5530 419 419 6.11% 7.58%
C 6859 5530 622 622 9.07% 11.25%
D 6859 5530 234 234 3.41% 4.23%

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 13 254 9808 61.97 736 724 146.6
A 3 137 6591 40.03 736 724 146.6
A 0 226 6405 38.76 736 724 146.6
B 10 245 1280975 9811.76 701 685 130.5
B 0 229 129799 989.49 701 685 130.5
B 5 255 35679 268.18 701 685 130.5
C 3 233 4393511 28861.01 660 666 152.2
C 14 238 107651 702.89 660 666 152.2
C 2 114 12468 77.54 660 666 152.2
D 8 195 890947 5453.69 690 673 163.2
D 1 52 782252 4787.84 690 673 163.2
D 7 80 294464 1799.72 690 673 163.2

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