ASTROSAT CZTI

Data Quality Report

Orbit 19614

Creation date: 2024-06-27T18:04:47.748036
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/AS1T03_116T01_9000002916_19614cztM0_level2.evt modeM0/AS1T03_116T01_9000002916_19614cztM0_level2_quad_clean.evt
Size (bytes)486,662,40080,470,080
Size464.1 MB 76.7 MB
Events in quadrant A3,070,009519,353
Events in quadrant B3,190,406526,922
Events in quadrant C3,222,741494,958
Events in quadrant D4,849,041476,978

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125491
B0129362
C0131391
D0183731

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5990931.552588%
B59891302.170646%
C59891592.654867%
D59892754.591752%

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 7180 5991 3 3 0.04% 0.05%
B 7179 5990 19 19 0.26% 0.32%
C 7179 5990 26 26 0.36% 0.43%
D 7179 5989 111 111 1.55% 1.85%

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 9 143 25188 154.25 786 773 158.3
A 5 16 8596 49.42 786 773 158.3
A 11 29 7357 41.6 786 773 158.3
B 7 220 72141 484.24 773 754 147.4
B 0 197 33178 219.94 773 754 147.4
B 10 247 23439 153.88 773 754 147.4
C 9 15 168633 976.43 736 742 171.9
C 14 238 117813 680.87 736 742 171.9
C 3 233 55348 317.58 736 742 171.9
D 7 238 1968208 10753.63 747 728 183.0
D 7 96 54692 294.95 747 728 183.0
D 2 234 21913 115.79 747 728 183.0

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