ASTROSAT CZTI

Data Quality Report

Orbit 03033

Creation date: 2024-06-27T14:23:43.954979
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/AS1G05_237T02_9000000422_03033cztM0_level2.evt modeM0/AS1G05_237T02_9000000422_03033cztM0_level2_quad_clean.evt
Size (bytes)636,667,200141,445,440
Size607.2 MB 134.9 MB
Events in quadrant A4,594,541886,177
Events in quadrant B4,810,372898,746
Events in quadrant C3,983,245940,123
Events in quadrant D5,255,606906,627

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01920
B01920
C01920
D01920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0630

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206424
B0210063
C0193633
D0232003

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9405160.170122%
B9405460.489102%
C9405130.138224%
D94052032.158426%

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 13654 9407 6 6 0.04% 0.06%
B 13654 9407 21 21 0.15% 0.22%
C 13654 9407 8 8 0.06% 0.09%
D 13654 9407 210 210 1.54% 2.23%

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 0 50 848955 4345.91 955 934 195.1
A 14 249 24694 121.76 955 934 195.1
A 13 251 19301 94.13 955 934 195.1
B 15 204 624868 3325.57 977 954 187.6
B 0 230 215520 1143.67 977 954 187.6
B 2 249 75506 397.37 977 954 187.6
C 6 80 127780 584.4 942 946 217.0
C 0 219 91723 418.26 942 946 217.0
C 1 16 18551 81.12 942 946 217.0
D 13 114 868648 3872.11 919 894 224.1
D 7 80 317336 1412.03 919 894 224.1
D 2 152 175445 778.89 919 894 224.1

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