ASTROSAT CZTI

Data Quality Report

Orbit 44314

Creation date: 2024-06-27T23:01:59.708435
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/AS1A13_004T13_9000005988_44314cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44314cztM0_level2_quad_clean.evt
Size (bytes)512,686,080113,685,120
Size488.9 MB 108.4 MB
Events in quadrant A5,075,746784,682
Events in quadrant B3,864,902798,373
Events in quadrant C3,165,128769,670
Events in quadrant D6,364,435633,818

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205852
B0157682
C0138302
D0232372

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65382894.420312%
B65383194.879168%
C65381231.881309%
D6538100015.295197%

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 7653 6538 10 10 0.13% 0.15%
B 7653 6538 110 110 1.44% 1.68%
C 7653 6538 5 5 0.07% 0.08%
D 7653 6538 823 823 10.75% 12.59%

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 1672195 10157.91 802 787 164.5
A 15 223 208109 1259.99 802 787 164.5
A 0 243 38503 229.22 802 787 164.5
B 5 172 318956 2068.43 786 761 153.8
B 4 158 114209 737.47 786 761 153.8
B 5 255 76579 492.85 786 761 153.8
C 14 254 100286 546.82 778 780 182.0
C 3 233 18699 98.47 778 780 182.0
C 1 3 8167 40.59 778 780 182.0
D 13 249 1876575 10182.64 741 717 184.2
D 5 222 923001 5006.39 741 717 184.2
D 2 153 140774 760.27 741 717 184.2

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