ASTROSAT CZTI

Data Quality Report

Orbit 30393

Creation date: 2024-06-27T20:14:39.023983
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/AS1T04_006T01_9000004370_30393cztM0_level2.evt modeM0/AS1T04_006T01_9000004370_30393cztM0_level2_quad_clean.evt
Size (bytes)575,968,32069,603,840
Size549.3 MB 66.4 MB
Events in quadrant A3,391,391420,263
Events in quadrant B5,474,318415,011
Events in quadrant C3,396,092404,762
Events in quadrant D4,727,631400,094

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144132
B0208403
C0142822
D0184922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6705771.148397%
B67041602.386635%
C6704911.357399%
D67043054.549523%

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 7730 6705 3 3 0.04% 0.04%
B 7729 6704 29 29 0.38% 0.43%
C 7729 6704 0 0 0.00% 0.00%
D 7729 6704 231 231 2.99% 3.45%

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 8 192 23552 131.73 863 848 172.3
A 0 13 18464 102.21 863 848 172.3
A 13 254 13056 70.83 863 848 172.3
B 6 159 1858729 11558.91 851 832 160.7
B 0 229 124043 766.56 851 832 160.7
B 12 18 51313 314.07 851 832 160.7
C 14 238 133691 690.52 824 830 192.4
C 3 233 29737 150.24 824 830 192.4
C 2 114 15944 78.55 824 830 192.4
D 13 104 646564 3046.43 817 801 212.0
D 12 233 467178 2200.16 817 801 212.0
D 8 195 279852 1316.44 817 801 212.0

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