ASTROSAT CZTI

Data Quality Report

Orbit 44622

Creation date: 2024-06-27T23:04:37.098905
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/AS1A13_009T03_9000006006_44622cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44622cztM0_level2_quad_clean.evt
Size (bytes)529,447,680114,655,680
Size504.9 MB 109.3 MB
Events in quadrant A5,419,592764,550
Events in quadrant B3,517,349795,557
Events in quadrant C4,410,676749,083
Events in quadrant D5,686,326656,817

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225122
B0153726
C0181172
D0218376

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72673855.297922%
B72653184.377151%
C72674225.807073%
D726581111.163111%

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 7737 7268 16 16 0.21% 0.22%
B 7737 7268 5 5 0.06% 0.07%
C 7737 7268 203 203 2.62% 2.79%
D 7736 7267 517 517 6.68% 7.11%

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 10 83 1949632 10910.29 854 833 178.6
A 13 248 92724 514.45 854 833 178.6
A 15 223 50978 280.74 854 833 178.6
B 0 190 49696 283.22 855 827 172.5
B 0 219 23846 133.41 855 827 172.5
B 0 183 22532 125.79 855 827 172.5
C 9 54 837970 4245.88 835 841 197.2
C 12 2 149623 754.62 835 841 197.2
C 3 233 95281 479.0 835 841 197.2
D 13 249 1195046 5862.5 805 781 203.7
D 1 52 701010 3437.34 805 781 203.7
D 13 153 580624 2846.38 805 781 203.7

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