ASTROSAT CZTI

Data Quality Report

Orbit 32304

Creation date: 2024-06-27T20:38:39.170719
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/AS1A10_005T01_9000004700_32304cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32304cztM0_level2_quad_clean.evt
Size (bytes)664,329,60085,080,960
Size633.6 MB 81.1 MB
Events in quadrant A3,241,932574,916
Events in quadrant B5,342,103554,052
Events in quadrant C3,439,894541,095
Events in quadrant D7,677,127473,360

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137122
B0201181
C0141381
D0270261

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6206901.450209%
B62061302.094747%
C62061181.901386%
D620694715.259426%

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 7241 6207 32 32 0.44% 0.52%
B 7241 6207 33 33 0.46% 0.53%
C 7241 6207 8 8 0.11% 0.13%
D 7241 6207 795 795 10.98% 12.81%

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 6 226345 1473.25 757 740 153.1
A 12 189 67474 435.79 757 740 153.1
A 0 226 20019 125.9 757 740 153.1
B 6 159 2026016 14414.6 744 725 140.5
B 0 190 154105 1091.65 744 725 140.5
B 5 172 128219 907.41 744 725 140.5
C 3 233 344337 2021.57 725 730 170.0
C 14 238 120049 702.0 725 730 170.0
C 4 175 61421 357.07 725 730 170.0
D 8 195 3222072 19522.79 695 678 165.0
D 12 6 412655 2496.73 695 678 165.0
D 13 249 372084 2250.85 695 678 165.0

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