ASTROSAT CZTI

Data Quality Report

Orbit 24364

Creation date: 2024-06-27T19:05:13.312869
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_145T01_9000003594_24364cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24364cztM0_level2_quad_clean.evt
Size (bytes)593,925,12090,927,360
Size566.4 MB 86.7 MB
Events in quadrant A3,115,750577,962
Events in quadrant B3,203,538599,692
Events in quadrant C3,397,918574,241
Events in quadrant D7,825,484544,724

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014315774
B014471751
C015431850
D028674862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014010
B01404
C01395
D01408

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65521011.541514%
B65631372.087460%
C65301482.266462%
D6539173726.563695%

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 7505 6687 0 0 0.00% 0.00%
B 7519 6699 0 0 0.00% 0.00%
C 7474 6664 0 0 0.00% 0.00%
D 7438 6679 1549 1549 20.83% 23.19%

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 9942 55.83 808 790 163.9
A 3 137 7582 41.43 808 790 163.9
A 0 226 6864 37.05 808 790 163.9
B 12 111 19202 118.28 809 788 155.7
B 0 230 18431 113.33 809 788 155.7
B 11 111 17228 105.6 809 788 155.7
C 7 247 226076 1242.37 776 782 181.3
C 14 238 123507 676.76 776 782 181.3
C 2 16 19716 104.41 776 782 181.3
D 9 35 4334921 24368.27 724 701 177.9
D 1 52 353809 1985.28 724 701 177.9
D 7 238 272630 1528.86 724 701 177.9

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