ASTROSAT CZTI

Data Quality Report

Orbit 03244

Creation date: 2024-06-27T14:26:40.012233
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_104T01_9000000440_03244cztM0_level2.evt modeM0/AS1G05_104T01_9000000440_03244cztM0_level2_quad_clean.evt
Size (bytes)457,064,64065,652,480
Size435.9 MB 62.6 MB
Events in quadrant A2,865,658389,678
Events in quadrant B3,592,651391,103
Events in quadrant C3,501,427390,243
Events in quadrant D3,450,986373,385

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129842
B0146571
C0145011
D0147541

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6349540.850528%
B6349731.149787%
C63491131.779808%
D63491502.362577%

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 7409 6350 4 4 0.05% 0.06%
B 7409 6350 2 2 0.03% 0.03%
C 7409 6350 49 49 0.66% 0.77%
D 7409 6350 113 113 1.53% 1.78%

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 0 118 37604 248.44 727 712 148.5
A 0 31 14335 91.74 727 712 148.5
A 0 226 11271 71.11 727 712 148.5
B 15 204 629234 4460.94 743 725 140.9
B 2 249 28125 194.48 743 725 140.9
B 0 229 15717 106.41 743 725 140.9
C 14 48 338461 2054.59 714 717 164.4
C 14 223 296679 1800.42 714 717 164.4
C 6 80 53240 319.51 714 717 164.4
D 13 223 408939 2422.54 702 684 168.5
D 13 114 267632 1584.04 702 684 168.5
D 5 233 45865 268.1 702 684 168.5

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