ASTROSAT CZTI

Data Quality Report

Orbit 14838

Creation date: 2024-06-27T17:00:13.815130
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/AS1C03_005T02_9000002192_14838cztM0_level2.evt modeM0/AS1C03_005T02_9000002192_14838cztM0_level2_quad_clean.evt
Size (bytes)449,631,36092,957,760
Size428.8 MB 88.7 MB
Events in quadrant A3,176,353603,391
Events in quadrant B3,437,658597,893
Events in quadrant C3,247,440590,246
Events in quadrant D3,323,417579,901

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134332
B0141711
C0132901
D0141921

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6364931.461345%
B63641201.885607%
C6364661.037084%
D63641702.671276%

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 7420 6366 2 2 0.03% 0.03%
B 7420 6366 18 18 0.24% 0.28%
C 7420 6366 0 0 0.00% 0.00%
D 7420 6366 97 97 1.31% 1.52%

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 12 189 98075 625.27 782 766 155.6
A 13 248 54806 347.24 782 766 155.6
A 9 143 13020 78.74 782 766 155.6
B 3 64 140448 975.84 772 753 143.2
B 0 229 79767 551.95 772 753 143.2
B 0 189 47669 327.73 772 753 143.2
C 3 233 309221 1802.63 751 756 171.1
C 9 54 7819 41.28 751 756 171.1
C 13 61 5527 27.88 751 756 171.1
D 7 254 317479 1622.2 746 730 195.3
D 13 104 71561 362.75 746 730 195.3
D 2 120 28093 140.14 746 730 195.3

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