ASTROSAT CZTI

Data Quality Report

Orbit 33067

Creation date: 2024-06-27T20:44:35.284061
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/AS1A11_080T01_9000004756_33067cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_33067cztM0_level2_quad_clean.evt
Size (bytes)614,134,08075,571,200
Size585.7 MB 72.1 MB
Events in quadrant A2,742,804493,381
Events in quadrant B3,814,373485,798
Events in quadrant C3,408,345483,835
Events in quadrant D8,231,056408,713

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119693
B0151292
C0139742
D0286952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A595240.067204%
B59522534.250672%
C5952570.957661%
D5952113119.002016%

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 8576 5954 0 0 0.00% 0.00%
B 8576 5954 168 168 1.96% 2.82%
C 8576 5954 45 45 0.52% 0.76%
D 8576 5954 1061 1061 12.37% 17.82%

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 12601 83.2 705 690 143.2
A 13 6 9940 64.61 705 690 143.2
A 3 137 6524 40.75 705 690 143.2
B 5 172 664111 4943.23 696 680 134.2
B 0 245 202194 1501.48 696 680 134.2
B 0 189 97366 720.41 696 680 134.2
C 7 221 507006 3184.11 684 692 159.0
C 0 10 112696 704.37 684 692 159.0
C 1 241 57207 355.41 684 692 159.0
D 7 223 2949834 17559.94 636 623 168.0
D 8 195 839628 4995.53 636 623 168.0
D 12 218 501456 2982.02 636 623 168.0

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