ASTROSAT CZTI

Data Quality Report

Orbit 07414

Creation date: 2024-06-27T15:19:25.514947
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_150T03_9000001018_07414cztM0_level2.evt modeM0/AS1A02_150T03_9000001018_07414cztM0_level2_quad_clean.evt
Size (bytes)65,494,08013,875,840
Size62.5 MB 13.2 MB
Events in quadrant A442,27188,967
Events in quadrant B473,36090,362
Events in quadrant C432,97189,637
Events in quadrant D573,99584,030

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192122
B0198524
C0190428
D0233838

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081
B081
C081
D081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A846151.773050%
B845242.840237%
C841121.426873%
D843364.270463%

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 1728 853 0 0 0.00% 0.00%
B 1728 853 0 0 0.00% 0.00%
C 1726 849 0 0 0.00% 0.00%
D 1728 849 16 16 0.93% 1.88%

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 1130 39.12 114 111 26.0
A 12 194 948 32.13 114 111 26.0
A 13 14 490 14.55 114 111 26.0
B 0 214 8986 345.65 117 114 25.7
B 4 81 4607 175.05 117 114 25.7
B 0 229 3507 132.19 117 114 25.7
C 12 4 1249 39.94 110 110 28.5
C 1 16 923 28.51 110 110 28.5
C 13 61 841 25.63 110 110 28.5
D 13 105 41743 1439.89 107 103 28.9
D 2 14 38256 1319.31 107 103 28.9
D 2 216 30786 1061.0 107 103 28.9

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