ASTROSAT CZTI

Data Quality Report

Orbit 19297

Creation date: 2024-06-27T18:01:57.234265
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/AS1T03_099T03_9000002854_19297cztM0_level2.evt modeM0/AS1T03_099T03_9000002854_19297cztM0_level2_quad_clean.evt
Size (bytes)443,770,560107,804,160
Size423.2 MB 102.8 MB
Events in quadrant A3,028,710727,577
Events in quadrant B3,184,812738,814
Events in quadrant C2,979,734690,014
Events in quadrant D3,819,096669,900

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131122
B0134832
C0130602
D0156872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6285350.556881%
B6285620.986476%
C6285480.763723%
D62852624.168656%

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 7480 6286 1 1 0.01% 0.02%
B 7480 6286 8 8 0.11% 0.13%
C 7480 6286 1 1 0.01% 0.02%
D 7480 6286 239 239 3.20% 3.80%

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 5 16 20857 128.34 778 764 156.6
A 13 254 8684 50.59 778 764 156.6
A 0 31 8078 46.72 778 764 156.6
B 0 197 43238 293.28 774 756 144.8
B 0 229 32166 216.85 774 756 144.8
B 6 36 25592 171.46 774 756 144.8
C 14 238 116548 685.36 730 732 169.0
C 3 233 9847 53.94 730 732 169.0
C 5 112 6552 34.44 730 732 169.0
D 1 52 850042 4795.93 729 707 177.1
D 13 138 149229 838.66 729 707 177.1
D 2 234 26606 146.24 729 707 177.1

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