ASTROSAT CZTI

Data Quality Report

Orbit 03406

Creation date: 2024-06-27T14:28:35.702133
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_210T01_9000000454_03406cztM0_level2.evt modeM0/AS1G05_210T01_9000000454_03406cztM0_level2_quad_clean.evt
Size (bytes)579,418,56080,648,640
Size552.6 MB 76.9 MB
Events in quadrant A3,841,520473,785
Events in quadrant B4,867,843474,112
Events in quadrant C4,285,546468,534
Events in quadrant D4,000,190459,501

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173072
B0197641
C0185711
D0180221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81423073.770572%
B81423914.802260%
C81422593.181037%
D81421341.645787%

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 8347 8144 3 3 0.04% 0.04%
B 8347 8144 5 5 0.06% 0.06%
C 8347 8144 61 61 0.73% 0.75%
D 8347 8144 7 7 0.08% 0.09%

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 0 118 54523 262.32 976 951 204.2
A 0 226 15474 71.11 976 951 204.2
A 0 31 14246 65.1 976 951 204.2
B 15 204 947413 4809.44 987 959 196.8
B 14 167 84723 425.65 987 959 196.8
B 0 229 19435 93.89 987 959 196.8
C 7 220 491662 2196.23 945 949 223.4
C 14 223 37969 165.69 945 949 223.4
C 8 128 11253 46.12 945 949 223.4
D 2 37 280797 1208.27 943 911 231.6
D 7 39 32465 136.22 943 911 231.6
D 9 85 28267 118.1 943 911 231.6

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