ASTROSAT CZTI

Data Quality Report

Orbit 07086

Creation date: 2024-06-27T15:15:24.002211
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/AS1A02_090T01_9000000970_07086cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07086cztM0_level2_quad_clean.evt
Size (bytes)1,185,382,080234,420,480
Size1.1 GB 223.6 MB
Events in quadrant A8,109,5311,489,002
Events in quadrant B8,972,2941,494,920
Events in quadrant C8,040,4441,484,247
Events in quadrant D9,582,0121,414,054

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0362444
B0384283
C0361213
D0408743

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03600
B03600
C03600
D03600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A176671250.707534%
B176671851.047150%
C17667740.418860%
D176672381.347144%

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 19672 17670 0 0 0.00% 0.00%
B 19672 17670 23 23 0.12% 0.13%
C 19672 17670 1 1 0.01% 0.01%
D 19672 17670 187 187 0.95% 1.06%

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 14 27785 60.45 2089 2047 425.7
A 0 226 20068 42.33 2089 2047 425.7
A 12 194 18786 39.32 2089 2047 425.7
B 0 219 545059 1348.31 2108 2061 402.7
B 0 214 179832 441.42 2108 2061 402.7
B 12 111 39809 93.73 2108 2061 402.7
C 14 67 50995 103.57 2042 2061 472.5
C 1 3 18121 33.99 2042 2061 472.5
C 13 61 15947 29.39 2042 2061 472.5
D 1 83 816263 1638.08 2030 1971 497.1
D 2 14 390302 781.19 2030 1971 497.1
D 12 233 353883 707.93 2030 1971 497.1

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