ASTROSAT CZTI

Data Quality Report

Orbit 24003

Creation date: 2024-06-27T19:01:02.457196
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/AS1A07_165T01_9000003558_24003cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24003cztM0_level2_quad_clean.evt
Size (bytes)521,861,760131,152,320
Size497.7 MB 125.1 MB
Events in quadrant A3,243,114896,134
Events in quadrant B3,383,118908,280
Events in quadrant C3,368,688865,618
Events in quadrant D5,342,260822,253

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142361
B0144841
C0144751
D0205491

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6887600.871207%
B6888731.059814%
C68881011.466318%
D68885187.520325%

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 7267 6888 1 1 0.01% 0.01%
B 7268 6889 4 4 0.06% 0.06%
C 7268 6889 9 9 0.12% 0.13%
D 7268 6889 345 345 4.75% 5.01%

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 78161 468.65 821 804 165.1
A 13 254 11737 66.23 821 804 165.1
A 3 137 7058 37.89 821 804 165.1
B 0 197 75643 488.44 820 800 153.2
B 7 202 19427 121.56 820 800 153.2
B 4 216 19169 119.88 820 800 153.2
C 0 239 132210 730.74 779 783 179.9
C 14 238 123904 684.55 779 783 179.9
C 7 247 54428 298.27 779 783 179.9
D 12 218 1257028 6659.97 770 746 188.6
D 8 195 676426 3582.01 770 746 188.6
D 1 52 229039 1210.26 770 746 188.6

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