ASTROSAT CZTI

Data Quality Report

Orbit 29302

Creation date: 2024-06-27T20:02:33.703994
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/AS1A10_050T01_9000004212_29302cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29302cztM0_level2_quad_clean.evt
Size (bytes)736,968,96077,955,840
Size702.8 MB 74.3 MB
Events in quadrant A3,383,099482,592
Events in quadrant B3,782,925483,371
Events in quadrant C9,145,427449,155
Events in quadrant D5,534,942457,894

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144971
B0155361
C0321091
D0212581

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69901121.602289%
B69911952.789301%
C6991172824.717494%
D69914216.022028%

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 7225 6991 0 0 0.00% 0.00%
B 7226 6992 33 33 0.46% 0.47%
C 7226 6992 733 733 10.14% 10.48%
D 7226 6992 271 271 3.75% 3.88%

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 15128 80.33 874 854 177.7
A 15 174 9684 49.69 874 854 177.7
A 3 137 8255 41.65 874 854 177.7
B 10 245 271184 1628.8 862 840 166.0
B 5 255 34677 203.87 862 840 166.0
B 0 190 26187 152.71 862 840 166.0
C 3 233 5787296 31530.01 778 783 183.5
C 14 238 149797 811.96 778 783 183.5
C 7 247 92745 501.09 778 783 183.5
D 1 52 777323 3877.11 833 812 200.3
D 12 233 526524 2624.87 833 812 200.3
D 8 195 437331 2179.53 833 812 200.3

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