ASTROSAT CZTI

Data Quality Report

Orbit 16016

Creation date: 2024-06-27T17:16:34.112164
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/AS1C03_015T03_9000002366_16016cztM0_level2.evt modeM0/AS1C03_015T03_9000002366_16016cztM0_level2_quad_clean.evt
Size (bytes)335,833,92096,238,080
Size320.3 MB 91.8 MB
Events in quadrant A2,397,277638,403
Events in quadrant B2,495,658656,063
Events in quadrant C2,428,016629,771
Events in quadrant D2,487,052617,831

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108454
B0110652
C0108322
D0113022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5312190.357681%
B5313440.828157%
C5313390.734049%
D5313260.489366%

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 5625 5316 0 0 0.00% 0.00%
B 5625 5316 7 7 0.12% 0.13%
C 5625 5316 0 0 0.00% 0.00%
D 5625 5316 19 19 0.34% 0.36%

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 13 210 17935 137.42 608 596 126.2
A 15 157 12957 97.97 608 596 126.2
A 12 96 11385 85.51 608 596 126.2
B 4 173 35949 303.55 610 594 116.5
B 0 190 23463 196.34 610 594 116.5
B 0 245 16653 137.88 610 594 116.5
C 14 238 89239 647.69 583 585 136.9
C 3 233 44503 320.86 583 585 136.9
C 8 128 9340 63.96 583 585 136.9
D 10 70 104621 720.84 590 574 144.3
D 2 152 89754 617.84 590 574 144.3
D 2 16 24105 163.02 590 574 144.3

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