ASTROSAT CZTI

Data Quality Report

Orbit 32198

Creation date: 2024-06-27T20:37:30.206712
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/AS1A09_131T01_9000004690_32198cztM0_level2.evt modeM0/AS1A09_131T01_9000004690_32198cztM0_level2_quad_clean.evt
Size (bytes)606,729,600119,983,680
Size578.6 MB 114.4 MB
Events in quadrant A3,491,953801,896
Events in quadrant B5,807,002809,630
Events in quadrant C4,293,307725,814
Events in quadrant D4,273,902774,254

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153672
B0231351
C0175651
D0175741

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74981892.520672%
B74982913.881035%
C7498106014.137103%
D74981902.534009%

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 7573 7499 0 0 0.00% 0.00%
B 7573 7499 34 34 0.45% 0.45%
C 7573 7497 25 25 0.33% 0.33%
D 7573 7499 65 65 0.86% 0.87%

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 6 14651 76.44 897 876 180.2
A 13 254 13981 72.72 897 876 180.2
A 3 137 9447 47.56 897 876 180.2
B 6 159 2025840 12064.43 882 859 167.8
B 5 172 163240 967.43 882 859 167.8
B 0 229 69712 410.21 882 859 167.8
C 14 238 359250 1937.41 797 802 185.0
C 14 254 323272 1742.95 797 802 185.0
C 3 233 240015 1292.94 797 802 185.0
D 8 195 463217 2251.61 865 837 205.4
D 2 250 201452 976.92 865 837 205.4
D 12 233 128499 621.66 865 837 205.4

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