ASTROSAT CZTI

Data Quality Report

Orbit 33483

Creation date: 2024-06-27T20:49:19.741509
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/AS1A11_060T01_9000004804_33483cztM0_level2.evt modeM0/AS1A11_060T01_9000004804_33483cztM0_level2_quad_clean.evt
Size (bytes)473,659,20046,604,160
Size451.7 MB 44.4 MB
Events in quadrant A2,332,177272,055
Events in quadrant B3,352,603272,437
Events in quadrant C3,254,129269,301
Events in quadrant D5,076,452255,937

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A097653
B0129252
C0124612
D0185022

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A485660.123558%
B48561984.077430%
C48561362.800659%
D485662712.911862%

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 6949 4857 0 0 0.00% 0.00%
B 6949 4857 143 143 2.06% 2.94%
C 6949 4857 128 128 1.84% 2.64%
D 6949 4857 565 565 8.13% 11.63%

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 13 254 7336 56.22 602 589 120.0
A 3 137 5719 42.75 602 589 120.0
A 10 83 5683 42.45 602 589 120.0
B 5 172 515748 4500.69 595 580 114.5
B 5 255 335691 2927.65 595 580 114.5
B 0 213 126023 1095.91 595 580 114.5
C 1 23 389077 2855.42 591 597 136.0
C 15 214 211434 1549.7 591 597 136.0
C 0 10 152788 1118.64 591 597 136.0
D 2 250 1395711 10174.96 563 548 137.1
D 8 195 831160 6057.67 563 548 137.1
D 13 249 439663 3202.48 563 548 137.1

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