ASTROSAT CZTI

Data Quality Report

Orbit 47320

Creation date: 2024-06-28T20:01:07.835561
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_093T23_9000006316_47320cztM0_level2.fits modeM0/AS1A13_093T23_9000006316_47320cztM0_level2_quad_clean.evt
Size (bytes)629,478,720129,542,400
Size600.3 MB 123.5 MB
Events in quadrant A8,553,491851,306
Events in quadrant B4,103,182886,566
Events in quadrant C4,101,467840,818
Events in quadrant D5,902,474768,948

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0316492
B0177515
C0181482
D0231876

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82695396.518321%
B82673674.439337%
C82703344.038694%
D82693604.353610%

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 8354 8272 15 15 0.18% 0.18%
B 8354 8271 2 2 0.02% 0.02%
C 8355 8273 46 46 0.55% 0.56%
D 8355 8273 80 80 0.96% 0.97%

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 3927792 19231.26 971 947 204.2
A 15 235 593327 2901.11 971 947 204.2
A 9 191 246150 1200.85 971 947 204.2
B 12 3 77225 390.24 977 944 195.5
B 4 171 37640 187.73 977 944 195.5
B 0 218 29053 143.8 977 944 195.5
C 14 254 166068 722.75 964 963 228.4
C 3 233 73629 318.1 964 963 228.4
C 12 2 65183 281.12 964 963 228.4
D 6 112 1781300 7280.26 962 929 244.5
D 14 49 115378 468.0 962 929 244.5
D 10 204 106910 433.38 962 929 244.5

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