ASTROSAT CZTI

Data Quality Report

Orbit 23334

Creation date: 2024-06-27T18:53:13.341244
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/AS1C05_002T03_9000003448_23334cztM0_level2.evt modeM0/AS1C05_002T03_9000003448_23334cztM0_level2_quad_clean.evt
Size (bytes)604,805,76072,218,880
Size576.8 MB 68.9 MB
Events in quadrant A3,490,780442,276
Events in quadrant B3,571,831445,955
Events in quadrant C3,927,261431,773
Events in quadrant D6,891,101416,998

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143212
B0145822
C0158122
D0250412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64431051.629676%
B64421211.878299%
C64421912.964918%
D64422644.098106%

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 7708 6443 0 0 0.00% 0.00%
B 7707 6442 9 9 0.12% 0.14%
C 7707 6442 12 12 0.16% 0.19%
D 7707 6442 73 73 0.95% 1.13%

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 6 16 15710 82.14 902 883 180.5
A 13 254 9847 49.66 902 883 180.5
A 0 226 7877 38.75 902 883 180.5
B 0 230 30654 179.37 889 868 166.1
B 0 183 21032 121.43 889 868 166.1
B 5 172 19002 109.2 889 868 166.1
C 10 9 367157 1853.54 867 876 197.6
C 14 238 140716 707.65 867 876 197.6
C 7 247 14701 69.96 867 876 197.6
D 7 223 3018852 14219.27 876 852 212.2
D 1 52 380596 1789.16 876 852 212.2
D 13 249 47035 217.59 876 852 212.2

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