ASTROSAT CZTI

Data Quality Report

Orbit 06198

Creation date: 2024-06-27T15:04:02.462801
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_085T02_9000000808_06198cztM0_level2.evt modeM0/AS1A02_085T02_9000000808_06198cztM0_level2_quad_clean.evt
Size (bytes)568,607,040107,311,680
Size542.3 MB 102.3 MB
Events in quadrant A3,842,115675,351
Events in quadrant B4,214,062681,107
Events in quadrant C3,689,836685,249
Events in quadrant D4,932,188652,911

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01662
C01660
D01660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0141

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01704430
B01809927
C01666627
D02045137

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79821111.390629%
B79841511.891283%
C7983610.764124%
D79821722.154848%

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 9444 7996 0 0 0.00% 0.00%
B 9444 7996 34 34 0.36% 0.43%
C 9444 7996 0 0 0.00% 0.00%
D 9444 7996 66 66 0.70% 0.83%

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 8 15 82353 425.26 938 917 191.5
A 4 2 64833 333.77 938 917 191.5
A 14 111 44846 229.4 938 917 191.5
B 3 64 331300 1829.18 947 926 180.6
B 0 214 76570 418.82 947 926 180.6
B 4 81 29974 160.83 947 926 180.6
C 1 16 76311 353.99 923 928 213.0
C 13 61 7407 30.42 923 928 213.0
C 8 128 5261 20.35 923 928 213.0
D 2 63 1137523 5070.45 916 884 224.2
D 5 97 165569 734.65 916 884 224.2
D 8 195 70713 311.5 916 884 224.2

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