ASTROSAT CZTI

Data Quality Report

Orbit 14217

Creation date: 2024-06-27T16:52:03.578418
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/AS1G08_084T01_9000002100_14217cztM0_level2.evt modeM0/AS1G08_084T01_9000002100_14217cztM0_level2_quad_clean.evt
Size (bytes)494,447,040109,791,360
Size471.5 MB 104.7 MB
Events in quadrant A3,196,330731,111
Events in quadrant B3,382,928735,207
Events in quadrant C3,348,518712,070
Events in quadrant D4,598,715686,508

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137686
B0142633
C0140956
D01822618

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6601640.969550%
B6602781.181460%
C6601350.530223%
D65981191.803577%

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 7119 6604 2 2 0.03% 0.03%
B 7119 6605 2 2 0.03% 0.03%
C 7119 6605 1 1 0.01% 0.02%
D 7119 6605 68 68 0.96% 1.03%

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 12 189 87962 555.64 777 762 156.9
A 8 15 74257 468.31 777 762 156.9
A 2 79 12570 75.24 777 762 156.9
B 0 229 66400 445.14 779 760 147.5
B 4 97 65943 442.04 779 760 147.5
B 0 219 59724 399.87 779 760 147.5
C 3 233 392020 2257.16 750 754 173.3
C 0 207 26796 150.23 750 754 173.3
C 13 61 5515 27.46 750 754 173.3
D 8 195 745946 4071.82 741 721 183.0
D 5 222 512482 2796.2 741 721 183.0
D 13 122 223449 1216.96 741 721 183.0

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