ASTROSAT CZTI

Data Quality Report

Orbit 43594

Creation date: 2024-06-27T22:53:28.292458
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/AS1A12_068T04_9000005888_43594cztM0_level2.fits modeM0/AS1A12_068T04_9000005888_43594cztM0_level2_quad_clean.evt
Size (bytes)1,060,698,24069,180,480
Size1011.6 MB 66.0 MB
Events in quadrant A4,135,897677,932
Events in quadrant B5,170,674668,179
Events in quadrant C15,807,985219,928
Events in quadrant D13,680,45898,890

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164081
B0196341
C0511561
D0447481

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6064821.352243%
B606464410.620053%
C6064592897.757256%
D60656065100.000000%

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 6704 6065 17 17 0.25% 0.28%
B 6704 6064 291 291 4.34% 4.80%
C 6703 6063 5761 5761 85.95% 95.02%
D 6704 6064 4662 4662 69.54% 76.88%

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 10 83 726999 5224.43 665 651 139.0
A 12 189 354748 2546.93 665 651 139.0
A 14 63 203496 1459.01 665 651 139.0
B 4 206 1281697 10228.3 648 628 125.2
B 0 219 330500 2633.76 648 628 125.2
B 0 182 285042 2270.81 648 628 125.2
C 15 142 9405258 173706.79 224 226 54.1
C 15 174 3531989 65230.1 224 226 54.1
C 3 233 455644 8411.37 224 226 54.1
D 4 212 4082882 107040.71 119 115 38.1
D 8 192 2465575 64638.66 119 115 38.1
D 4 216 1964552 51503.0 119 115 38.1

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