ASTROSAT CZTI

Data Quality Report

Orbit 23032

Creation date: 2024-06-27T18:49:01.924423
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/AS1C05_004T01_9000003404_23032cztM0_level2.evt modeM0/AS1C05_004T01_9000003404_23032cztM0_level2_quad_clean.evt
Size (bytes)405,457,92079,974,720
Size386.7 MB 76.3 MB
Events in quadrant A2,441,430525,691
Events in quadrant B2,662,036531,182
Events in quadrant C2,506,938512,851
Events in quadrant D4,308,150480,564

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121941383
B0129221632
C0123351426
D0182281616

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012214
B012214
C011911
D011911

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B091
C091
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5311510.960271%
B5275911.725118%
C5310901.694915%
D52934027.594937%

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 6980 5465 0 0 0.00% 0.00%
B 6980 5422 13 13 0.19% 0.24%
C 6980 5444 1 1 0.01% 0.02%
D 6980 5448 292 292 4.18% 5.36%

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 13 254 7451 53.25 631 619 128.3
A 2 79 6652 47.02 631 619 128.3
A 3 137 5807 40.44 631 619 128.3
B 3 64 115578 967.33 625 608 118.9
B 0 189 57757 480.84 625 608 118.9
B 4 216 28998 238.87 625 608 118.9
C 14 238 96422 672.18 608 611 142.5
C 0 207 18956 128.7 608 611 142.5
C 0 10 11837 78.76 608 611 142.5
D 1 52 782367 5390.06 597 579 145.0
D 5 222 727596 5012.44 597 579 145.0
D 2 152 221916 1526.01 597 579 145.0

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