ASTROSAT CZTI

Data Quality Report

Orbit 06076

Creation date: 2024-06-27T15:02:24.841783
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/AS1G06_130T01_9000000782_06076cztM0_level2.evt modeM0/AS1G06_130T01_9000000782_06076cztM0_level2_quad_clean.evt
Size (bytes)1,230,592,320295,159,680
Size1.1 GB 281.5 MB
Events in quadrant A7,907,8891,961,777
Events in quadrant B9,139,9421,980,448
Events in quadrant C9,209,9741,940,717
Events in quadrant D9,852,6991,876,620

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03500
B03500
C03500
D03500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0355942
B0388852
C0400952
D0417314

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A171123391.981066%
B171125993.500468%
C171128775.125058%
D171117424.336392%

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 17417 17116 1 1 0.01% 0.01%
B 17416 17113 83 83 0.48% 0.49%
C 17417 17115 519 519 2.98% 3.03%
D 17417 17116 484 484 2.78% 2.83%

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 8 15 384362 958.83 1938 1886 398.9
A 13 251 31562 74.4 1938 1886 398.9
A 14 111 21762 49.83 1938 1886 398.9
B 3 64 645233 1728.62 1948 1895 372.2
B 4 81 341980 913.79 1948 1895 372.2
B 15 204 184790 491.43 1948 1895 372.2
C 9 16 1748140 4080.55 1864 1867 428.0
C 9 68 112488 258.49 1864 1867 428.0
C 8 128 25038 54.14 1864 1867 428.0
D 13 169 1661748 3622.26 1877 1812 458.3
D 2 33 325267 705.83 1877 1812 458.3
D 2 63 165547 357.3 1877 1812 458.3

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