ASTROSAT CZTI

Data Quality Report

Orbit 06952

Creation date: 2024-06-27T15:13:36.515309
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_111T01_9000000954_06952cztM0_level2.evt modeM0/AS1A02_111T01_9000000954_06952cztM0_level2_quad_clean.evt
Size (bytes)538,683,84099,489,600
Size513.7 MB 94.9 MB
Events in quadrant A3,495,375627,614
Events in quadrant B4,283,539625,966
Events in quadrant C3,443,496623,188
Events in quadrant D4,564,245595,906

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159644
B0180083
C0159533
D0188753

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7760801.030928%
B77602713.492268%
C7760400.515464%
D77611071.378688%

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 7935 7762 0 0 0.00% 0.00%
B 7935 7762 79 79 1.00% 1.02%
C 7935 7762 0 0 0.00% 0.00%
D 7936 7763 38 38 0.48% 0.49%

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 0 143 10776 53.19 903 882 186.0
A 0 226 8856 42.87 903 882 186.0
A 12 194 8442 40.65 903 882 186.0
B 0 219 342234 1998.94 898 877 170.8
B 4 48 144399 840.45 898 877 170.8
B 4 81 121153 704.32 898 877 170.8
C 7 247 26208 124.8 875 877 203.0
C 13 61 6971 30.02 875 877 203.0
C 12 4 4719 18.93 875 877 203.0
D 8 195 601017 2790.22 871 843 215.1
D 2 136 172506 798.06 871 843 215.1
D 14 34 149227 689.84 871 843 215.1

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