ASTROSAT CZTI

Data Quality Report

Orbit 05734

Creation date: 2024-06-27T14:58:29.782501
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_150T01_9000000738_05734cztM0_level2.evt modeM0/AS1A02_150T01_9000000738_05734cztM0_level2_quad_clean.evt
Size (bytes)502,868,16082,442,880
Size479.6 MB 78.6 MB
Events in quadrant A3,498,205497,118
Events in quadrant B3,972,488506,168
Events in quadrant C3,461,495502,730
Events in quadrant D3,802,435483,776

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015459217
B016490152
C015437198
D016377243

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72642042.808370%
B72952373.248801%
C72741371.883420%
D72681712.352779%

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 9263 7361 0 0 0.00% 0.00%
B 9263 7361 1 1 0.01% 0.01%
C 9263 7359 0 0 0.00% 0.00%
D 9263 7358 17 17 0.18% 0.23%

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 15 174 9949 48.79 906 882 185.8
A 0 226 8770 42.44 906 882 185.8
A 12 194 8769 42.44 906 882 185.8
B 5 172 270628 1508.97 918 896 178.8
B 11 51 55079 303.12 918 896 178.8
B 15 204 47355 259.91 918 896 178.8
C 14 67 8983 39.03 883 886 207.4
C 13 61 7191 30.39 883 886 207.4
C 12 4 3197 11.14 883 886 207.4
D 12 233 168527 767.57 887 859 218.4
D 1 20 144271 656.52 887 859 218.4
D 2 136 38741 173.42 887 859 218.4

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