ASTROSAT CZTI

Data Quality Report

Orbit 03488

Creation date: 2024-06-27T14:29:39.621098
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_211T01_9000000464_03488cztM0_level2.evt modeM0/AS1G05_211T01_9000000464_03488cztM0_level2_quad_clean.evt
Size (bytes)505,031,04081,489,600
Size481.6 MB 77.7 MB
Events in quadrant A3,303,034520,657
Events in quadrant B3,555,587521,845
Events in quadrant C4,835,065489,683
Events in quadrant D3,175,754497,851

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140703
B0147882
C0187162
D0139012

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62741372.183615%
B6274761.211348%
C62745158.208479%
D6274901.434492%

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 7579 6275 52 52 0.69% 0.83%
B 7579 6275 4 4 0.05% 0.06%
C 7579 6274 406 406 5.36% 6.47%
D 7579 6275 36 36 0.47% 0.57%

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 0 118 184846 1197.94 758 745 153.7
A 0 50 170218 1102.76 758 745 153.7
A 0 226 24977 157.68 758 745 153.7
B 15 204 438375 2979.34 768 750 146.9
B 8 3 34332 228.63 768 750 146.9
B 4 81 26306 173.98 768 750 146.9
C 7 220 1950740 11721.66 718 722 166.4
C 1 16 25573 149.38 718 722 166.4
C 1 192 17934 103.46 718 722 166.4
D 14 34 126372 708.07 741 723 177.5
D 13 239 75948 423.91 741 723 177.5
D 2 37 39865 220.58 741 723 177.5

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