ASTROSAT CZTI

Data Quality Report

Orbit 14012

Creation date: 2024-06-27T16:49:07.651974
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/AS1G08_064T01_9000002070_14012cztM0_level2.evt modeM0/AS1G08_064T01_9000002070_14012cztM0_level2_quad_clean.evt
Size (bytes)482,362,56094,458,240
Size460.0 MB 90.1 MB
Events in quadrant A3,142,840609,686
Events in quadrant B3,519,380615,105
Events in quadrant C3,139,412615,123
Events in quadrant D4,379,579581,506

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134023
B0144882
C0133092
D0172922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6291881.398824%
B62911762.797647%
C6291861.367032%
D62912093.322206%

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 8902 6294 0 0 0.00% 0.00%
B 8902 6294 32 32 0.36% 0.51%
C 8902 6294 0 0 0.00% 0.00%
D 8902 6294 97 97 1.09% 1.54%

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 12 189 45716 277.59 799 783 161.9
A 8 15 8975 50.61 799 783 161.9
A 1 162 8601 48.3 799 783 161.9
B 10 245 252890 1695.72 792 773 148.7
B 0 189 61187 406.34 792 773 148.7
B 10 16 34058 223.87 792 773 148.7
C 3 233 58015 313.64 790 796 182.4
C 13 61 5705 26.91 790 796 182.4
C 0 207 2121 7.26 790 796 182.4
D 1 52 561555 3069.56 775 759 182.7
D 10 157 328150 1792.0 775 759 182.7
D 8 195 236579 1290.78 775 759 182.7

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