ASTROSAT CZTI

Data Quality Report

Orbit 05244

Creation date: 2024-06-27T14:53:00.656241
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/AS1C01_015T01_9000000668_05244cztM0_level2.evt modeM0/AS1C01_015T01_9000000668_05244cztM0_level2_quad_clean.evt
Size (bytes)616,570,56077,339,520
Size588.0 MB 73.8 MB
Events in quadrant A3,942,152454,643
Events in quadrant B3,985,654453,318
Events in quadrant C3,893,606446,762
Events in quadrant D6,292,840414,509

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174273
B0174532
C0175082
D0241412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82263464.206176%
B82263384.108923%
C82262713.294432%
D822686310.491126%

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 8636 8228 0 0 0.00% 0.00%
B 8636 8228 0 0 0.00% 0.00%
C 8636 8228 0 0 0.00% 0.00%
D 8636 8228 415 415 4.81% 5.04%

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 14794 65.16 1019 995 211.8
A 12 194 9946 42.27 1019 995 211.8
A 0 226 9793 41.55 1019 995 211.8
B 12 111 20480 96.16 1020 993 202.7
B 11 111 16058 74.34 1020 993 202.7
B 0 219 12292 55.75 1020 993 202.7
C 1 16 40202 169.69 982 987 231.1
C 13 61 7940 30.09 982 987 231.1
C 8 128 7877 29.81 982 987 231.1
D 11 145 1972301 8196.49 965 934 240.5
D 8 195 343971 1426.27 965 934 240.5
D 2 16 224979 931.53 965 934 240.5

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