ASTROSAT CZTI

Data Quality Report

Orbit 08078

Creation date: 2024-06-27T15:27:39.245389
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_055T01_9000001114_08078cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08078cztM0_level2_quad_clean.evt
Size (bytes)469,607,040100,039,680
Size447.9 MB 95.4 MB
Events in quadrant A3,210,498637,497
Events in quadrant B3,164,921662,235
Events in quadrant C4,321,615655,775
Events in quadrant D3,096,252633,457

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138013
B0136002
C0170932
D0136152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6308781.236525%
B6308941.490171%
C63083144.977806%
D63081001.585289%

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 7428 6309 0 0 0.00% 0.00%
B 7428 6309 5 5 0.07% 0.08%
C 7428 6309 180 180 2.42% 2.85%
D 7428 6309 20 20 0.27% 0.32%

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 0 128 268034 1724.44 764 749 155.0
A 0 226 7215 41.72 764 749 155.0
A 12 194 6892 39.63 764 749 155.0
B 4 81 58056 388.39 779 761 147.5
B 10 16 23967 157.31 779 761 147.5
B 11 51 22514 147.46 779 761 147.5
C 9 68 1298226 7453.81 759 764 174.1
C 1 16 58713 332.91 759 764 174.1
C 13 61 5815 29.02 759 764 174.1
D 7 71 95680 477.57 747 732 198.8
D 2 136 58251 289.31 747 732 198.8
D 2 14 46631 230.86 747 732 198.8

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