ASTROSAT CZTI

Data Quality Report

Orbit 07067

Creation date: 2024-06-27T15:15:10.923084
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/AS1A02_155T01_9000000966_07067cztM0_level2.evt modeM0/AS1A02_155T01_9000000966_07067cztM0_level2_quad_clean.evt
Size (bytes)559,897,92073,157,760
Size534.0 MB 69.8 MB
Events in quadrant A3,464,036428,568
Events in quadrant B4,151,882434,943
Events in quadrant C4,633,532421,778
Events in quadrant D4,202,693412,261

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154122
B0172091
C0187711
D0172401

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74381341.801560%
B74382373.186340%
C74382443.280452%
D74382002.688895%

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 7789 7440 1 1 0.01% 0.01%
B 7789 7440 77 77 0.99% 1.03%
C 7789 7440 129 129 1.66% 1.73%
D 7789 7440 66 66 0.85% 0.89%

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 8 15 36784 196.71 881 861 182.6
A 13 248 21559 113.34 881 861 182.6
A 13 14 9745 48.65 881 861 182.6
B 4 239 528223 3102.47 882 860 170.0
B 0 214 159343 932.35 882 860 170.0
B 4 81 21342 120.5 882 860 170.0
C 9 68 1188340 5922.62 854 858 200.5
C 4 254 106457 526.68 854 858 200.5
C 13 61 6666 28.97 854 858 200.5
D 8 195 524928 2463.79 858 829 212.7
D 14 34 182047 851.9 858 829 212.7
D 2 136 117137 546.76 858 829 212.7

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