ASTROSAT CZTI

Data Quality Report

Orbit 07097

Creation date: 2024-06-27T15:15:33.598028
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/AS1A02_090T01_9000000970_07097cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07097cztM0_level2_quad_clean.evt
Size (bytes)480,274,560100,327,680
Size458.0 MB 95.7 MB
Events in quadrant A3,307,190645,418
Events in quadrant B3,571,032651,049
Events in quadrant C3,308,934646,324
Events in quadrant D3,886,296612,263

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144312
B0149571
C0145491
D0155741

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69422103.025065%
B69422193.154710%
C69421392.002305%
D69421842.650533%

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 7067 6942 0 0 0.00% 0.00%
B 7067 6942 7 7 0.10% 0.10%
C 7067 6942 3 3 0.04% 0.04%
D 7067 6942 9 9 0.13% 0.13%

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 0 226 7978 40.2 856 838 177.6
A 12 194 7699 38.63 856 838 177.6
A 13 14 5968 28.88 856 838 177.6
B 0 214 110912 662.51 858 836 166.2
B 0 219 107259 640.52 858 836 166.2
B 12 111 16072 91.7 858 836 166.2
C 4 254 63011 317.2 831 838 196.0
C 13 61 6461 28.69 831 838 196.0
C 1 3 3850 15.37 831 838 196.0
D 8 195 347522 1684.83 832 808 205.8
D 1 20 299111 1449.58 832 808 205.8
D 2 14 63833 306.27 832 808 205.8

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