ASTROSAT CZTI

Data Quality Report

Orbit 05162

Creation date: 2024-06-27T14:52:08.948643
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/AS1G05_214T01_9000000652_05162cztM0_level2.evt modeM0/AS1G05_214T01_9000000652_05162cztM0_level2_quad_clean.evt
Size (bytes)470,139,84078,189,120
Size448.4 MB 74.6 MB
Events in quadrant A3,142,668479,458
Events in quadrant B3,411,110482,939
Events in quadrant C2,992,233488,439
Events in quadrant D4,233,365446,135

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140383
B0146202
C0136352
D0175112

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6741390.578549%
B6741420.623053%
C6741130.192850%
D67413605.340454%

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 7736 6742 16 16 0.21% 0.24%
B 7736 6742 11 11 0.14% 0.16%
C 7736 6742 0 0 0.00% 0.00%
D 7736 6742 289 289 3.74% 4.29%

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 4 2 98689 614.95 774 755 159.3
A 0 50 63881 396.38 774 755 159.3
A 12 194 7594 42.94 774 755 159.3
B 4 80 199451 1318.57 786 767 150.7
B 4 48 69913 458.89 786 767 150.7
B 15 54 58717 384.59 786 767 150.7
C 1 16 22900 124.94 760 765 177.2
C 13 61 6107 30.15 760 765 177.2
C 12 4 2216 8.19 760 765 177.2
D 2 33 1251602 6840.93 739 717 182.9
D 2 136 49484 266.7 739 717 182.9
D 2 14 48212 259.74 739 717 182.9

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