ASTROSAT CZTI

Data Quality Report

Orbit 22293

Creation date: 2024-06-27T18:39:06.506783
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/AS1A07_018T08_9000003296_22293cztM0_level2.evt modeM0/AS1A07_018T08_9000003296_22293cztM0_level2_quad_clean.evt
Size (bytes)478,088,64089,118,720
Size455.9 MB 85.0 MB
Events in quadrant A3,397,845571,024
Events in quadrant B3,482,614583,468
Events in quadrant C3,350,624546,848
Events in quadrant D3,794,210532,006

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140132
B0142662
C0139602
D0155752

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66831101.645967%
B66831492.229538%
C66831412.109831%
D66831472.199611%

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 7673 6684 3 3 0.04% 0.04%
B 7673 6684 6 6 0.08% 0.09%
C 7673 6684 0 0 0.00% 0.00%
D 7673 6684 57 57 0.74% 0.85%

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 10 253 36142 201.97 873 856 174.7
A 13 254 8511 43.82 873 856 174.7
A 0 226 7700 39.17 873 856 174.7
B 3 64 74692 449.71 866 846 164.2
B 12 111 19916 116.13 866 846 164.2
B 11 111 17879 103.73 866 846 164.2
C 14 238 130305 673.37 825 832 192.3
C 13 61 5704 25.34 825 832 192.3
C 0 10 3103 11.81 825 832 192.3
D 1 52 505101 2469.5 837 813 204.2
D 12 227 76048 368.43 837 813 204.2
D 13 172 51020 245.86 837 813 204.2

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