ASTROSAT CZTI

Data Quality Report

Orbit 10522

Creation date: 2024-06-27T16:00:29.366730
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/AS1A03_033T01_9000001524_10522cztM0_level2.evt modeM0/AS1A03_033T01_9000001524_10522cztM0_level2_quad_clean.evt
Size (bytes)322,364,16065,335,680
Size307.4 MB 62.3 MB
Events in quadrant A2,161,077408,367
Events in quadrant B2,274,363396,514
Events in quadrant C2,128,316424,761
Events in quadrant D2,886,329427,256

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02440315031
B03016120575
C02523315796
D02989318233

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02913
B03113
C03016
D03115

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250155
B0248149
C0249162
D0239139

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A455290.197715%
B4271260.608757%
C461070.151844%
D4889170.347719%

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 7488 5566 0 0 0.00% 0.00%
B 7488 5304 2 2 0.03% 0.04%
C 7487 5609 0 0 0.00% 0.00%
D 7488 5577 3 3 0.04% 0.05%

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 13 251 17907 157.98 545 535 110.0
A 1 162 16211 142.56 545 535 110.0
A 3 80 12125 105.4 545 535 110.0
B 4 239 150946 1542.54 517 504 97.5
B 4 81 44537 451.49 517 504 97.5
B 0 214 41954 425.0 517 504 97.5
C 13 61 4102 28.3 544 545 125.7
C 14 67 1885 10.66 544 545 125.7
C 14 234 1665 8.91 544 545 125.7
D 2 16 282433 2121.61 562 548 132.9
D 8 195 278739 2093.8 562 548 132.9
D 1 52 65907 491.92 562 548 132.9

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