ASTROSAT CZTI

Data Quality Report

Orbit 34243

Creation date: 2022-07-18T14:00:11.033783
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/AS1A11_059T09_9000004888_34243cztM0_level2.evt modeM0/AS1A11_059T09_9000004888_34243cztM0_level2_quad_clean.evt
Size (bytes)457,554,24057,582,720
Size436.4 MB 54.9 MB
Events in quadrant A2,626,590344,646
Events in quadrant B2,957,584350,202
Events in quadrant C3,208,635334,421
Events in quadrant D4,683,634321,664

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114470
B0122880
C0128270
D0177930

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A561080.142602%
B5610420.748663%
C5610871.550802%
D56102464.385027%

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 7192 5611 2 2 0.03% 0.04%
B 7192 5611 20 20 0.28% 0.36%
C 7192 5611 62 62 0.86% 1.10%
D 7192 5611 152 152 2.11% 2.71%

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 9 143 25048 180.78 664 649 135.0
A 10 83 24429 176.19 664 649 135.0
A 13 6 12567 88.3 664 649 135.0
B 5 172 224877 1754.42 661 644 127.8
B 4 171 67461 522.78 661 644 127.8
B 5 255 20974 159.06 661 644 127.8
C 15 214 244795 1637.73 639 645 149.1
C 0 10 213759 1429.54 639 645 149.1
C 14 254 152509 1018.69 639 645 149.1
D 8 195 1184544 7546.47 632 615 156.9
D 7 80 647115 4120.85 632 615 156.9
D 2 249 88820 562.23 632 615 156.9

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