ASTROSAT CZTI

Data Quality Report

Orbit 41190

Creation date: 2024-06-27T22:25:49.131112
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_101T03_9000005618_41190cztM0_level2.fits modeM0/AS1A12_101T03_9000005618_41190cztM0_level2_quad_clean.evt
Size (bytes)410,011,200104,808,960
Size391.0 MB 100.0 MB
Events in quadrant A3,362,178705,372
Events in quadrant B3,260,284720,709
Events in quadrant C4,746,941644,852
Events in quadrant D3,297,106644,614

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140963
B0144032
C0183022
D0146302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6563110.167606%
B6563691.051348%
C65636169.385952%
D6563851.295139%

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 9307 6565 4 4 0.04% 0.06%
B 9307 6565 48 48 0.52% 0.73%
C 9306 6564 555 555 5.96% 8.46%
D 9307 6565 64 64 0.69% 0.97%

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 586410 4068.43 699 684 144.0
A 2 79 39885 272.29 699 684 144.0
A 12 189 13013 85.64 699 684 144.0
B 5 255 305568 2259.64 695 676 134.9
B 0 229 119115 877.79 695 676 134.9
B 0 190 65806 482.7 695 676 134.9
C 9 54 1348840 8892.37 651 654 151.6
C 0 10 554778 3654.89 651 654 151.6
C 15 214 264617 1741.05 651 654 151.6
D 13 249 220649 1318.73 683 666 166.8
D 12 16 149496 892.19 683 666 166.8
D 2 249 99847 594.56 683 666 166.8

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