ASTROSAT CZTI

Data Quality Report

Orbit 31030

Creation date: 2024-06-27T20:22:30.671274
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/AS1A10_071T56_9000004484_31030cztM0_level2.evt modeM0/AS1A10_071T56_9000004484_31030cztM0_level2_quad_clean.evt
Size (bytes)755,395,20083,502,720
Size720.4 MB 79.6 MB
Events in quadrant A2,932,138602,624
Events in quadrant B4,898,676592,987
Events in quadrant C3,055,500570,304
Events in quadrant D11,587,859344,431

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125761
B0187161
C0128762
D0385331

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5964671.123407%
B59651161.944677%
C59641342.246814%
D5964357059.859155%

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 6999 5964 0 0 0.00% 0.00%
B 7000 5965 9 9 0.13% 0.15%
C 6999 5964 4 4 0.06% 0.07%
D 6999 5964 3727 3727 53.25% 62.49%

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 15 192 13942 86.29 755 740 153.0
A 13 254 12733 78.39 755 740 153.0
A 3 137 7458 43.91 755 740 153.0
B 6 159 1686887 11855.24 739 721 142.2
B 0 155 156824 1097.54 739 721 142.2
B 4 171 34376 236.62 739 721 142.2
C 14 238 116059 676.79 717 721 170.4
C 0 10 76381 443.97 717 721 170.4
C 3 233 29140 166.76 717 721 170.4
D 12 218 8836876 67752.16 543 528 130.4
D 8 195 376394 2881.93 543 528 130.4
D 13 174 113182 863.76 543 528 130.4

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