ASTROSAT CZTI

Data Quality Report

Orbit 07065

Creation date: 2024-06-27T15:15:08.932850
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_07065cztM0_level2.evt modeM0/AS1A02_155T01_9000000966_07065cztM0_level2_quad_clean.evt
Size (bytes)453,438,72081,054,720
Size432.4 MB 77.3 MB
Events in quadrant A3,169,886502,796
Events in quadrant B3,261,806511,656
Events in quadrant C3,401,330500,796
Events in quadrant D3,453,024481,060

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135753
B0138352
C0144532
D0141402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65661071.629607%
B65661041.583917%
C65661422.162656%
D65661031.568687%

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 7591 6567 0 0 0.00% 0.00%
B 7591 6567 13 13 0.17% 0.20%
C 7591 6567 59 59 0.78% 0.90%
D 7591 6567 15 15 0.20% 0.23%

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 14 238 47287 287.37 798 781 161.8
A 8 15 33557 202.53 798 781 161.8
A 13 14 16971 100.04 798 781 161.8
B 4 239 79257 517.73 796 777 151.6
B 0 214 64899 423.01 796 777 151.6
B 4 81 19899 126.15 796 777 151.6
C 4 254 365050 2022.11 777 780 180.1
C 13 61 6045 29.23 777 780 180.1
C 4 238 2531 9.72 777 780 180.1
D 8 195 312871 1638.09 782 759 190.5
D 2 14 37529 192.98 782 759 190.5
D 12 233 36616 188.19 782 759 190.5

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