ASTROSAT CZTI

Data Quality Report

Orbit 32092

Creation date: 2024-06-27T20:36:24.645305
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/AS1T04_051T01_9000004686_32092cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32092cztM0_level2_quad_clean.evt
Size (bytes)896,639,04080,484,480
Size855.1 MB 76.8 MB
Events in quadrant A3,141,008588,210
Events in quadrant B8,624,886450,393
Events in quadrant C3,580,254577,288
Events in quadrant D11,420,430415,546

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01262231
B02946655
C01445315
D037961105

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5762661.145436%
B5770209936.377816%
C57712293.968116%
D5765306653.183001%

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 7149 5771 0 0 0.00% 0.00%
B 7150 5775 1851 1851 25.89% 32.05%
C 7150 5780 29 29 0.41% 0.50%
D 7150 5767 3387 3387 47.37% 58.73%

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 10220 59.13 813 800 159.3
A 3 137 7284 40.7 813 800 159.3
A 13 6 7223 40.31 813 800 159.3
B 10 245 4423355 33931.39 706 690 130.3
B 6 159 1372290 10523.13 706 690 130.3
B 0 190 25587 191.01 706 690 130.3
C 0 10 304063 1710.83 779 785 177.3
C 14 238 136088 763.26 779 785 177.3
C 2 16 37928 209.53 779 785 177.3
D 12 79 5835703 36377.42 682 666 160.4
D 12 233 1416207 8824.92 682 666 160.4
D 8 195 1124859 7008.57 682 666 160.4

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