ASTROSAT CZTI

Data Quality Report

Orbit 30610

Creation date: 2024-06-27T20:17:39.354152
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_021T09_9000004410_30610cztM0_level2.evt modeM0/AS1A10_021T09_9000004410_30610cztM0_level2_quad_clean.evt
Size (bytes)716,639,04076,152,960
Size683.4 MB 72.6 MB
Events in quadrant A3,705,970502,180
Events in quadrant B5,368,286475,756
Events in quadrant C3,814,617462,919
Events in quadrant D8,361,652396,308

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152232
B0205542
C0154062
D0297522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6717781.161233%
B6717741.101682%
C67171682.501117%
D6717117417.478041%

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 7782 6718 31 31 0.40% 0.46%
B 7782 6718 9 9 0.12% 0.13%
C 7782 6718 38 38 0.49% 0.57%
D 7782 6718 1047 1047 13.45% 15.58%

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 0 13 335874 1934.57 868 855 173.2
A 8 192 24935 139.05 868 855 173.2
A 13 254 12383 66.57 868 855 173.2
B 6 159 1902188 11748.85 852 832 161.8
B 0 229 84770 518.67 852 832 161.8
B 12 111 19797 117.19 852 832 161.8
C 15 208 286466 1476.41 817 824 193.5
C 14 238 143594 737.94 817 824 193.5
C 0 10 135200 694.56 817 824 193.5
D 8 195 3264185 17725.24 774 756 184.1
D 12 218 1425580 7738.9 774 756 184.1
D 1 52 374014 2027.34 774 756 184.1

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