ASTROSAT CZTI

Data Quality Report

Orbit 07024

Creation date: 2024-06-27T15:14:36.410979
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/AS1G06_026T01_9000000962_07024cztM0_level2.evt modeM0/AS1G06_026T01_9000000962_07024cztM0_level2_quad_clean.evt
Size (bytes)530,285,76092,341,440
Size505.7 MB 88.1 MB
Events in quadrant A3,433,505575,781
Events in quadrant B3,592,299578,569
Events in quadrant C3,397,025569,488
Events in quadrant D5,117,558540,619

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156672
B0159531
C0156531
D0204031

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76481021.333682%
B76481101.438285%
C7648470.614540%
D76485116.681485%

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 7913 7650 0 0 0.00% 0.00%
B 7913 7650 1 1 0.01% 0.01%
C 7913 7650 0 0 0.00% 0.00%
D 7913 7650 377 377 4.76% 4.93%

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 0 226 8466 41.62 888 865 182.6
A 12 194 8005 39.1 888 865 182.6
A 15 234 7397 35.77 888 865 182.6
B 0 214 81267 474.98 891 870 169.3
B 4 173 17508 98.3 891 870 169.3
B 12 111 16171 90.4 891 870 169.3
C 12 4 12608 59.14 861 862 198.6
C 1 16 11274 52.43 861 862 198.6
C 13 61 6692 29.35 861 862 198.6
D 2 216 1384842 6691.35 844 816 206.8
D 8 195 227184 1094.42 844 816 206.8
D 2 136 177134 852.44 844 816 206.8

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