ASTROSAT CZTI

Data Quality Report

Orbit 15014

Creation date: 2024-06-27T17:02:34.350873
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/AS1T02_057T01_9000002212_15014cztM0_level2.evt modeM0/AS1T02_057T01_9000002212_15014cztM0_level2_quad_clean.evt
Size (bytes)546,272,64093,758,400
Size521.0 MB 89.4 MB
Events in quadrant A4,497,546581,630
Events in quadrant B4,352,461584,684
Events in quadrant C3,677,914579,045
Events in quadrant D3,496,377561,207

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183923
B0177582
C0157732
D0159572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76502793.647059%
B76503814.980392%
C76501642.143791%
D76501882.457516%

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 7876 7651 20 20 0.25% 0.26%
B 7876 7651 100 100 1.27% 1.31%
C 7876 7652 0 0 0.00% 0.00%
D 7876 7652 15 15 0.19% 0.20%

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 1 162 219713 1183.47 916 897 184.9
A 15 239 190763 1026.89 916 897 184.9
A 12 189 139591 750.13 916 897 184.9
B 3 64 367909 2124.06 909 884 172.8
B 0 229 261939 1510.79 909 884 172.8
B 0 197 55266 314.72 909 884 172.8
C 3 233 230455 1130.74 881 882 203.0
C 13 61 6420 27.28 881 882 203.0
C 0 207 5793 24.19 881 882 203.0
D 2 120 30222 135.61 887 857 216.5
D 2 234 29763 133.49 887 857 216.5
D 15 0 27852 124.67 887 857 216.5

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