ASTROSAT CZTI

Data Quality Report

Orbit 05081

Creation date: 2024-06-27T14:51:02.175260
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/AS1G05_103T01_9000000642_05081cztM0_level2.evt modeM0/AS1G05_103T01_9000000642_05081cztM0_level2_quad_clean.evt
Size (bytes)507,199,68069,940,800
Size483.7 MB 66.7 MB
Events in quadrant A3,207,688438,697
Events in quadrant B3,389,251446,065
Events in quadrant C3,139,009433,214
Events in quadrant D5,189,279352,259

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134163
B0137632
C0134102
D0196672

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64081412.200375%
B64081532.387640%
C64081021.591760%
D640886813.545568%

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 7613 6409 0 0 0.00% 0.00%
B 7613 6409 0 0 0.00% 0.00%
C 7613 6409 0 0 0.00% 0.00%
D 7613 6408 603 603 7.92% 9.41%

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 0 50 21865 127.49 820 803 165.2
A 13 14 19991 116.15 820 803 165.2
A 13 251 8769 48.22 820 803 165.2
B 15 204 76125 477.89 825 810 157.6
B 8 3 45247 281.96 825 810 157.6
B 0 219 42740 266.05 825 810 157.6
C 1 16 69019 374.89 786 791 182.0
C 13 61 6400 30.82 786 791 182.0
C 12 4 2291 8.24 786 791 182.0
D 13 235 1262925 7338.63 709 686 172.0
D 12 22 926123 5380.47 709 686 172.0
D 13 239 207874 1204.59 709 686 172.0

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