ASTROSAT CZTI

Data Quality Report

Orbit 43711

Creation date: 2024-06-27T22:54:52.537275
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/AS1A13_003T01_9000005902_43711cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43711cztM0_level2_quad_clean.evt
Size (bytes)780,811,200114,914,880
Size744.6 MB 109.6 MB
Events in quadrant A9,651,897752,145
Events in quadrant B4,122,679816,942
Events in quadrant C6,433,630749,688
Events in quadrant D8,124,882646,067

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0338780
B0173310
C0241460
D0292820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73877069.557330%
B73881832.476990%
C73886839.244721%
D7388103614.022740%

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 7387 7387 347 347 4.70% 4.70%
B 7388 7388 82 82 1.11% 1.11%
C 7388 7388 510 510 6.90% 6.90%
D 7388 7388 697 697 9.43% 9.43%

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 15 222 4340126 25608.88 812 794 169.4
A 10 83 790065 4657.94 812 794 169.4
A 15 223 692135 4080.0 812 794 169.4
B 5 235 631594 3835.95 828 799 164.4
B 0 199 147653 893.04 828 799 164.4
B 5 255 30155 178.52 828 799 164.4
C 15 157 1723417 9125.61 799 803 188.8
C 15 158 695105 3678.09 799 803 188.8
C 3 233 459470 2429.81 799 803 188.8
D 12 33 915847 4554.44 787 762 200.9
D 8 48 592614 2945.68 787 762 200.9
D 14 210 499167 2480.59 787 762 200.9

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