ASTROSAT CZTI

Data Quality Report

Orbit 42214

Creation date: 2024-06-27T22:38:34.869091
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/AS1A12_088T51_9000005780_42214cztM0_level2.fits modeM0/AS1A12_088T51_9000005780_42214cztM0_level2_quad_clean.evt
Size (bytes)315,731,52089,213,760
Size301.1 MB 85.1 MB
Events in quadrant A3,132,207604,644
Events in quadrant B2,506,833625,917
Events in quadrant C2,388,946587,955
Events in quadrant D3,266,768530,461

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122972
B0108642
C0102202
D0131642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50381112.203255%
B5038230.456530%
C503860.119095%
D50381472.917825%

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 7161 5039 103 103 1.44% 2.04%
B 7161 5039 8 8 0.11% 0.16%
C 7161 5039 1 1 0.01% 0.02%
D 7161 5039 137 137 1.91% 2.72%

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 10 83 578952 4911.42 570 561 117.8
A 15 222 304906 2584.35 570 561 117.8
A 13 6 13060 106.14 570 561 117.8
B 5 255 137412 1235.13 573 559 110.8
B 0 229 70574 631.9 573 559 110.8
B 3 112 36137 321.1 573 559 110.8
C 15 214 210338 1635.35 551 556 128.3
C 15 159 16940 127.72 551 556 128.3
C 12 249 5924 41.85 551 556 128.3
D 1 52 526006 3947.47 546 533 133.1
D 1 47 221882 1662.82 546 533 133.1
D 12 218 89942 671.66 546 533 133.1

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