ASTROSAT CZTI

Data Quality Report

Orbit 22263

Creation date: 2024-06-27T18:38:44.021074
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_018T07_9000003294_22263cztM0_level2.evt modeM0/AS1A07_018T07_9000003294_22263cztM0_level2_quad_clean.evt
Size (bytes)489,804,48082,247,040
Size467.1 MB 78.4 MB
Events in quadrant A3,360,950529,115
Events in quadrant B3,577,402535,126
Events in quadrant C3,864,823494,344
Events in quadrant D3,602,130491,431

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136252
B0143602
C0152152
D0145722

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6322871.376147%
B63221622.562480%
C63222894.571338%
D6322801.265422%

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 7592 6323 0 0 0.00% 0.00%
B 7592 6323 34 34 0.45% 0.54%
C 7592 6323 156 156 2.05% 2.47%
D 7592 6323 29 29 0.38% 0.46%

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 13 254 9250 48.0 872 856 174.9
A 0 226 7580 38.45 872 856 174.9
A 3 137 6852 34.29 872 856 174.9
B 3 64 177263 1084.31 866 848 162.7
B 12 111 19459 114.39 866 848 162.7
B 11 111 17234 100.71 866 848 162.7
C 10 22 556458 2938.03 814 822 189.1
C 14 238 129934 682.71 814 822 189.1
C 3 9 5868 26.68 814 822 189.1
D 1 52 300914 1510.06 830 811 198.7
D 2 136 83159 414.36 830 811 198.7
D 13 172 52044 257.79 830 811 198.7

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