ASTROSAT CZTI

Data Quality Report

Orbit 11460

Creation date: 2024-06-27T16:13:13.135871
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/AS1A04_021T03_9000001678_11460cztM0_level2.evt modeM0/AS1A04_021T03_9000001678_11460cztM0_level2_quad_clean.evt
Size (bytes)546,670,08083,306,880
Size521.3 MB 79.4 MB
Events in quadrant A3,590,193501,675
Events in quadrant B4,915,637492,357
Events in quadrant C3,352,178538,028
Events in quadrant D4,213,742493,624

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150983
B0192042
C0146712
D0172162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71291321.851592%
B71294586.424463%
C7129931.304531%
D71293464.853416%

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 9060 7132 2 2 0.02% 0.03%
B 9060 7132 183 183 2.02% 2.57%
C 9060 7132 1 1 0.01% 0.01%
D 9060 7132 190 190 2.10% 2.66%

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 8 5 47224 258.75 881 861 179.2
A 1 162 39539 215.86 881 861 179.2
A 9 143 36567 199.27 881 861 179.2
B 4 239 1091446 6524.06 861 840 167.2
B 15 204 166446 990.66 861 840 167.2
B 11 51 98345 583.28 861 840 167.2
C 13 61 6425 27.97 859 863 198.8
C 14 234 4436 17.97 859 863 198.8
C 3 202 2103 6.23 859 863 198.8
D 1 52 475529 2348.57 843 818 202.1
D 10 253 289306 1427.26 843 818 202.1
D 2 14 81361 398.48 843 818 202.1

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