ASTROSAT CZTI

Data Quality Report

Orbit 29416

Creation date: 2024-06-27T20:03:54.209265
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/AS1A10_102T11_9000004230_29416cztM0_level2.evt modeM0/AS1A10_102T11_9000004230_29416cztM0_level2_quad_clean.evt
Size (bytes)684,797,76091,261,440
Size653.1 MB 87.0 MB
Events in quadrant A3,450,963583,625
Events in quadrant B3,724,013590,754
Events in quadrant C6,240,969551,822
Events in quadrant D6,843,828542,885

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146012
B0152982
C0235562
D0252365

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70861422.003951%
B70871642.314096%
C70874125.813461%
D708682111.586226%

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 7716 7087 0 0 0.00% 0.00%
B 7717 7088 15 15 0.19% 0.21%
C 7717 7088 26 26 0.34% 0.37%
D 7716 7087 445 445 5.77% 6.28%

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 13822 71.95 892 873 180.0
A 3 137 8663 43.28 892 873 180.0
A 0 226 7776 38.35 892 873 180.0
B 0 229 157282 930.33 877 853 168.1
B 10 245 55907 327.42 877 853 168.1
B 0 190 21148 120.7 877 853 168.1
C 3 233 2825235 14593.15 833 837 193.5
C 14 238 139345 715.65 833 837 193.5
C 2 114 16882 82.9 833 837 193.5
D 1 52 2015200 10186.8 827 803 197.7
D 8 195 987877 4991.63 827 803 197.7
D 7 80 344086 1735.98 827 803 197.7

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