ASTROSAT CZTI

Data Quality Report

Orbit 05388

Creation date: 2024-06-27T14:54:38.821858
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/AS1G05_214T01_9000000684_05388cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05388cztM0_level2_quad_clean.evt
Size (bytes)807,528,96074,747,520
Size770.1 MB 71.3 MB
Events in quadrant A3,847,111438,562
Events in quadrant B3,914,443441,320
Events in quadrant C4,197,686445,018
Events in quadrant D11,956,767380,764

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171143
B0169882
C0175332
D0411912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80043193.985507%
B80043414.260370%
C80041742.173913%
D800486510.807096%

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 8724 8006 5 5 0.06% 0.06%
B 8724 8006 1 1 0.01% 0.01%
C 8724 8006 0 0 0.00% 0.00%
D 8724 8006 203 203 2.33% 2.54%

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 50 35519 170.16 979 955 203.1
A 15 174 19325 90.43 979 955 203.1
A 13 6 17185 79.9 979 955 203.1
B 0 187 19052 92.57 993 967 195.4
B 12 111 18340 88.93 993 967 195.4
B 15 204 15164 72.67 993 967 195.4
C 1 16 442888 1953.68 958 967 226.2
C 13 61 7671 29.64 958 967 226.2
C 8 128 6909 26.27 958 967 226.2
D 7 237 8286039 36799.96 909 881 225.1
D 2 63 72406 317.69 909 881 225.1
D 2 16 69063 302.84 909 881 225.1

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