ASTROSAT CZTI

Data Quality Report

Orbit 00607

Creation date: 2024-06-27T14:00:29.052631
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/AS1P01_126T01_9000000084_00607cztM0_level2.evt modeM0/AS1P01_126T01_9000000084_00607cztM0_level2_quad_clean.evt
Size (bytes)824,186,88064,215,360
Size786.0 MB 61.2 MB
Events in quadrant A6,380,209397,086
Events in quadrant B6,455,171408,875
Events in quadrant C5,682,248400,425
Events in quadrant D6,105,890382,276

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225582
B0227761
C0204791
D0217481

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A507070.138067%
B5070330.650888%
C507060.118343%
D5070671.321499%

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 7224 5071 201 201 2.78% 3.96%
B 7224 5071 201 201 2.78% 3.96%
C 7224 5071 44 44 0.61% 0.87%
D 7224 5071 223 223 3.09% 4.40%

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 15 171 148428 439.95 1519 1500 334.0
A 0 69 112292 331.75 1519 1500 334.0
A 0 149 108182 319.44 1519 1500 334.0
B 7 221 366460 1032.27 1527 1535 353.5
B 4 250 161336 452.03 1527 1535 353.5
B 8 54 17821 46.07 1527 1535 353.5
C 7 190 18190 42.09 1429 1483 396.9
C 7 221 13251 29.65 1429 1483 396.9
C 3 159 11571 25.42 1429 1483 396.9
D 1 4 306763 714.68 1371 1423 427.2
D 7 143 179783 417.47 1371 1423 427.2
D 13 221 78923 181.4 1371 1423 427.2

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