ASTROSAT CZTI

Data Quality Report

Orbit 33205

Creation date: 2024-06-27T20:46:03.691829
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_067T01_9000004770_33205cztM0_level2.evt modeM0/AS1A10_067T01_9000004770_33205cztM0_level2_quad_clean.evt
Size (bytes)497,880,00056,197,440
Size474.8 MB 53.6 MB
Events in quadrant A2,629,678353,707
Events in quadrant B3,747,873347,098
Events in quadrant C3,164,694341,003
Events in quadrant D5,199,891311,270

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106253
B0143152
C0123142
D0190252

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A496250.100766%
B49623346.731157%
C49621683.385732%
D49622625.280129%

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 6965 4963 0 0 0.00% 0.00%
B 6965 4963 214 214 3.07% 4.31%
C 6965 4963 127 127 1.82% 2.56%
D 6965 4963 211 211 3.03% 4.25%

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 7940 53.73 678 668 135.3
A 0 226 5905 38.69 678 668 135.3
A 3 137 5860 38.36 678 668 135.3
B 5 172 988637 8327.78 642 629 118.6
B 0 219 65538 547.11 642 629 118.6
B 0 197 45288 376.42 642 629 118.6
C 1 23 351120 2372.88 644 652 147.7
C 0 10 242893 1640.12 644 652 147.7
C 1 241 17333 112.94 644 652 147.7
D 8 195 1564147 9979.4 646 629 156.7
D 12 218 414707 2642.92 646 629 156.7
D 13 249 194919 1240.09 646 629 156.7

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