ASTROSAT CZTI

Data Quality Report

Orbit 29269

Creation date: 2024-06-27T20:02:04.301468
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/AS1A10_045T08_9000004208_29269cztM0_level2.evt modeM0/AS1A10_045T08_9000004208_29269cztM0_level2_quad_clean.evt
Size (bytes)709,200,00061,254,720
Size676.3 MB 58.4 MB
Events in quadrant A3,384,728366,758
Events in quadrant B4,523,717364,734
Events in quadrant C7,160,955341,037
Events in quadrant D5,988,684346,520

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138101
B0177081
C0256901
D0222941

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6229921.476963%
B62302674.285714%
C623085013.643660%
D62303545.682183%

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 7529 6229 0 0 0.00% 0.00%
B 7530 6230 89 89 1.18% 1.43%
C 7530 6230 107 107 1.42% 1.72%
D 7530 6230 272 272 3.61% 4.37%

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 13 254 11943 63.87 876 862 173.5
A 3 137 7897 40.55 876 862 173.5
A 0 226 7679 39.29 876 862 173.5
B 10 245 758458 4685.12 854 833 161.7
B 0 229 286861 1768.78 854 833 161.7
B 0 183 125967 773.82 854 833 161.7
C 3 233 3738689 20059.96 812 822 186.3
C 14 238 174417 931.63 812 822 186.3
C 14 254 65323 346.16 812 822 186.3
D 1 52 1413345 7021.05 846 827 201.2
D 8 195 1164196 5782.63 846 827 201.2
D 13 153 110236 543.83 846 827 201.2

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