ASTROSAT CZTI

Data Quality Report

Orbit 12211

Creation date: 2024-06-27T16:23:53.434647
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/AS1A04_066T01_9000001802_12211cztM0_level2.evt modeM0/AS1A04_066T01_9000001802_12211cztM0_level2_quad_clean.evt
Size (bytes)647,582,400121,083,840
Size617.6 MB 115.5 MB
Events in quadrant A5,314,368819,220
Events in quadrant B6,360,775768,918
Events in quadrant C3,086,116834,879
Events in quadrant D4,396,039774,990

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0204863
B0233662
C0138092
D0177702

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67182503.721346%
B6718111416.582316%
C6718430.640071%
D67183575.314082%

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 7704 6720 98 98 1.27% 1.46%
B 7704 6720 680 680 8.83% 10.12%
C 7704 6720 3 3 0.04% 0.04%
D 7704 6720 241 241 3.13% 3.59%

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 13 251 1345517 8470.43 779 761 158.8
A 8 15 650732 4094.07 779 761 158.8
A 1 162 122174 764.76 779 761 158.8
B 4 239 2945919 21713.32 726 709 135.6
B 15 204 251263 1847.19 726 709 135.6
B 0 214 67591 493.08 726 709 135.6
C 15 208 53132 294.27 771 774 177.9
C 14 234 8164 41.53 771 774 177.9
C 13 61 5736 27.89 771 774 177.9
D 1 52 1034187 5791.41 747 724 178.4
D 10 50 193266 1078.98 747 724 178.4
D 10 199 102592 570.86 747 724 178.4

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