ASTROSAT CZTI

Data Quality Report

Orbit 09781

Creation date: 2024-06-27T15:50:33.786227
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/AS1A03_080T01_9000001392_09781cztM0_level2.evt modeM0/AS1A03_080T01_9000001392_09781cztM0_level2_quad_clean.evt
Size (bytes)424,232,64087,762,240
Size404.6 MB 83.7 MB
Events in quadrant A2,968,904556,889
Events in quadrant B3,232,498565,372
Events in quadrant C2,837,676559,491
Events in quadrant D3,374,559530,449

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132123
B0138684
C0129044
D0144704

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6383100.156666%
B6382510.799123%
C638280.125353%
D6382811.269195%

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 7528 6384 0 0 0.00% 0.00%
B 7528 6384 30 30 0.40% 0.47%
C 7528 6384 1 1 0.01% 0.02%
D 7528 6384 50 50 0.66% 0.78%

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 14 111 73620 482.36 745 730 151.1
A 13 248 11628 72.12 745 730 151.1
A 14 250 7171 42.62 745 730 151.1
B 4 81 65681 450.63 754 735 144.1
B 4 239 62150 426.13 754 735 144.1
B 0 229 47661 325.6 754 735 144.1
C 13 61 5599 28.93 724 729 168.3
C 14 234 4282 21.11 724 729 168.3
C 14 128 4077 19.89 724 729 168.3
D 2 152 303671 1658.4 710 691 182.7
D 2 14 101500 551.79 710 691 182.7
D 1 52 88675 481.59 710 691 182.7

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