ASTROSAT CZTI

Data Quality Report

Orbit 45889

Creation date: 2024-06-27T23:17:21.656291
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/AS1T05_188T01_9000006138_45889cztM0_level2.fits modeM0/AS1T05_188T01_9000006138_45889cztM0_level2_quad_clean.evt
Size (bytes)694,408,320127,563,840
Size662.2 MB 121.7 MB
Events in quadrant A7,188,040864,045
Events in quadrant B8,756,972785,494
Events in quadrant C3,625,911872,146
Events in quadrant D5,500,272771,651

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0269592
B0316992
C0166582
D0221962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81833103.788342%
B8183143017.475254%
C8184360.439883%
D81843574.362170%

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 9588 8184 29 29 0.30% 0.35%
B 9588 8183 757 757 7.90% 9.25%
C 9589 8186 0 0 0.00% 0.00%
D 9589 8186 242 242 2.52% 2.96%

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 3501169 17999.29 931 910 194.5
A 13 248 38524 193.42 931 910 194.5
A 10 255 12141 57.75 931 910 194.5
B 3 112 4146346 23724.68 881 854 174.7
B 4 171 491187 2806.18 881 854 174.7
B 0 189 347687 1984.93 881 854 174.7
C 10 20 16378 70.87 920 923 218.1
C 15 208 6848 27.17 920 923 218.1
C 13 61 6312 24.71 920 923 218.1
D 1 52 951650 4193.23 900 873 226.7
D 13 249 318415 1400.46 900 873 226.7
D 12 233 261508 1149.48 900 873 226.7

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