ASTROSAT CZTI

Data Quality Report

Orbit 33208

Creation date: 2024-06-27T20:46:06.089541
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_33208cztM0_level2.evt modeM0/AS1A10_067T01_9000004770_33208cztM0_level2_quad_clean.evt
Size (bytes)451,661,76060,946,560
Size430.7 MB 58.1 MB
Events in quadrant A2,535,717379,952
Events in quadrant B3,843,503373,946
Events in quadrant C3,022,449372,137
Events in quadrant D3,931,546362,406

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104943
B0146792
C0120532
D0153602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A509060.117878%
B50904919.646365%
C50901252.455796%
D5090561.100196%

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 7153 5091 0 0 0.00% 0.00%
B 7153 5091 320 320 4.47% 6.29%
C 7153 5091 98 98 1.37% 1.92%
D 7153 5091 35 35 0.49% 0.69%

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 14 254 13320 97.73 649 637 129.8
A 13 254 9353 67.16 649 637 129.8
A 13 6 7655 54.08 649 637 129.8
B 5 172 1167806 10102.15 614 601 115.5
B 4 170 56451 483.38 614 601 115.5
B 0 219 48722 416.49 614 601 115.5
C 0 10 229790 1603.88 625 632 142.9
C 9 187 136184 948.73 625 632 142.9
C 1 23 89065 618.94 625 632 142.9
D 8 195 987756 5950.93 629 617 165.9
D 13 249 108844 652.44 629 617 165.9
D 10 203 88581 530.28 629 617 165.9

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