ASTROSAT CZTI

Data Quality Report

Orbit 33221

Creation date: 2024-06-27T20:46:15.174492
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_066T01_9000004772_33221cztM0_level2.evt modeM0/AS1T04_066T01_9000004772_33221cztM0_level2_quad_clean.evt
Size (bytes)589,003,200102,363,840
Size561.7 MB 97.6 MB
Events in quadrant A2,654,443731,690
Events in quadrant B4,403,856701,264
Events in quadrant C2,867,231694,391
Events in quadrant D7,577,677624,387

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107273
B0167832
C0113292
D0259662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A496190.181415%
B49613026.087482%
C4961611.229591%
D496192018.544648%

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 7083 4962 0 0 0.00% 0.00%
B 7083 4962 205 205 2.89% 4.13%
C 7083 4962 43 43 0.61% 0.87%
D 7083 4962 1116 1116 15.76% 22.49%

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 47 23423 171.29 676 666 132.9
A 13 6 9872 69.29 676 666 132.9
A 14 254 9554 66.9 676 666 132.9
B 4 170 858011 7052.75 649 636 121.6
B 5 172 526903 4329.06 649 636 121.6
B 0 219 158915 1302.0 649 636 121.6
C 0 10 210535 1460.16 634 642 143.7
C 10 49 82609 570.22 634 642 143.7
C 1 23 61082 420.46 634 642 143.7
D 8 195 4096172 24617.91 625 612 166.4
D 2 250 331222 1987.26 625 612 166.4
D 10 203 298799 1792.37 625 612 166.4

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