ASTROSAT CZTI

Data Quality Report

Orbit 07036

Creation date: 2024-06-27T15:14:46.004764
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/AS1G06_029T01_9000000964_07036cztM0_level2.evt modeM0/AS1G06_029T01_9000000964_07036cztM0_level2_quad_clean.evt
Size (bytes)481,360,32092,759,040
Size459.1 MB 88.5 MB
Events in quadrant A3,366,555595,725
Events in quadrant B3,473,683602,538
Events in quadrant C3,249,826588,964
Events in quadrant D4,036,745558,842

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139903
B0142062
C0138392
D0160882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66421802.710027%
B66421862.800361%
C66421231.851852%
D66421872.815417%

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 7652 6643 10 10 0.13% 0.15%
B 7652 6643 3 3 0.04% 0.05%
C 7652 6643 0 0 0.00% 0.00%
D 7652 6643 44 44 0.58% 0.66%

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 15 234 49085 277.15 857 840 174.1
A 2 79 8417 43.53 857 840 174.1
A 0 226 8218 42.38 857 840 174.1
B 0 214 90116 542.84 861 842 164.5
B 4 81 32842 194.58 861 842 164.5
B 12 111 16368 94.41 861 842 164.5
C 1 16 14768 72.6 825 831 192.0
C 10 22 8819 41.61 825 831 192.0
C 13 61 6655 30.34 825 831 192.0
D 2 216 445165 2166.65 825 799 205.1
D 8 195 247368 1202.23 825 799 205.1
D 6 225 112677 545.5 825 799 205.1

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