ASTROSAT CZTI

Data Quality Report

Orbit 22304

Creation date: 2024-06-27T18:39:14.560310
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/AS1A07_049T01_9000003298_22304cztM0_level2.evt modeM0/AS1A07_049T01_9000003298_22304cztM0_level2_quad_clean.evt
Size (bytes)451,895,04084,144,960
Size431.0 MB 80.2 MB
Events in quadrant A3,289,259532,887
Events in quadrant B3,386,005555,413
Events in quadrant C3,355,792514,112
Events in quadrant D3,214,390493,699

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136862
B0139742
C0139132
D0137392

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6486170.262103%
B6486240.370028%
C6486580.894234%
D6486190.292939%

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 7826 6487 0 0 0.00% 0.00%
B 7826 6487 0 0 0.00% 0.00%
C 7826 6487 0 0 0.00% 0.00%
D 7826 6487 6 6 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 13 254 7883 41.64 853 839 169.1
A 0 226 7303 38.22 853 839 169.1
A 3 137 6974 36.27 853 839 169.1
B 12 111 18937 113.35 862 845 159.6
B 11 111 16715 99.43 862 845 159.6
B 14 111 15090 89.25 862 845 159.6
C 14 238 133499 702.73 823 830 188.8
C 0 10 8339 39.77 823 830 188.8
C 13 61 5694 25.76 823 830 188.8
D 2 136 58574 290.54 822 800 198.8
D 1 52 28268 138.13 822 800 198.8
D 2 234 22663 109.95 822 800 198.8

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