ASTROSAT CZTI

Data Quality Report

Orbit 17214

Creation date: 2024-06-27T17:33:41.053770
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/AS1A05_185T04_9000002548_17214cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17214cztM0_level2_quad_clean.evt
Size (bytes)534,510,72093,291,840
Size509.7 MB 89.0 MB
Events in quadrant A3,571,363587,099
Events in quadrant B3,772,731586,807
Events in quadrant C4,119,557558,833
Events in quadrant D4,196,983552,464

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159492
B0163622
C0172232
D0179032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7760610.786082%
B77611011.301379%
C77611271.636387%
D77611882.422368%

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 8865 7763 0 0 0.00% 0.00%
B 8866 7764 4 4 0.05% 0.05%
C 8866 7764 0 0 0.00% 0.00%
D 8866 7764 116 116 1.31% 1.49%

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 0 226 8232 39.03 927 906 187.7
A 3 137 6839 31.61 927 906 187.7
A 12 194 6713 30.94 927 906 187.7
B 7 220 35950 194.36 931 907 180.3
B 15 35 30014 161.43 931 907 180.3
B 12 111 21348 113.37 931 907 180.3
C 3 233 482474 2285.09 893 896 210.7
C 14 238 134914 635.92 893 896 210.7
C 8 128 12066 53.0 893 896 210.7
D 13 189 283415 1278.16 901 873 221.1
D 10 70 203809 918.04 901 873 221.1
D 5 222 146358 658.14 901 873 221.1

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