ASTROSAT CZTI

Data Quality Report

Orbit 05444

Creation date: 2024-06-27T14:55:16.746006
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_204T01_9000000688_05444cztM0_level2.evt modeM0/AS1G05_204T01_9000000688_05444cztM0_level2_quad_clean.evt
Size (bytes)464,333,760106,519,680
Size442.8 MB 101.6 MB
Events in quadrant A2,920,222696,049
Events in quadrant B3,622,073697,097
Events in quadrant C2,937,328712,019
Events in quadrant D4,140,080666,453

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013647137
B015619220
C013713168
D017213330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01344
B01340
C01342
D01342

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6536360.550796%
B6511951.459069%
C6519290.444854%
D64921832.818854%

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 7678 6597 8 8 0.10% 0.12%
B 7678 6595 11 11 0.14% 0.17%
C 7678 6597 0 0 0.00% 0.00%
D 7678 6592 140 140 1.82% 2.12%

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 42398 275.29 738 721 151.4
A 8 6 20737 132.21 738 721 151.4
A 13 6 13907 87.1 738 721 151.4
B 15 204 315908 2243.92 746 727 140.5
B 0 219 258986 1838.67 746 727 140.5
B 11 51 77033 543.26 746 727 140.5
C 14 67 62480 372.88 728 734 165.6
C 1 16 17302 100.05 728 734 165.6
C 1 241 11230 63.38 728 734 165.6
D 2 33 707648 4068.87 713 691 173.7
D 2 152 348481 2001.7 713 691 173.7
D 8 195 111905 640.09 713 691 173.7

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