ASTROSAT CZTI

Data Quality Report

Orbit 32990

Creation date: 2024-06-27T20:44:18.389918
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/AS1C07_003T01_9000004754_32990cztM0_level2.evt modeM0/AS1C07_003T01_9000004754_32990cztM0_level2_quad_clean.evt
Size (bytes)439,583,04063,855,360
Size419.2 MB 60.9 MB
Events in quadrant A2,356,274409,457
Events in quadrant B2,823,519418,829
Events in quadrant C2,616,585397,488
Events in quadrant D5,181,267361,069

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100103
B0113352
C0108082
D0189272

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A493460.121605%
B49341452.938792%
C4934430.871504%
D49343146.364005%

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 7087 4935 0 0 0.00% 0.00%
B 7087 4935 97 97 1.37% 1.97%
C 7087 4935 27 27 0.38% 0.55%
D 7087 4935 432 432 6.10% 8.75%

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 12 227 12761 101.59 603 593 119.8
A 13 254 8892 69.29 603 593 119.8
A 9 143 5918 44.46 603 593 119.8
B 5 172 299031 2612.04 603 589 114.3
B 5 200 100899 877.94 603 589 114.3
B 0 246 35446 305.08 603 589 114.3
C 0 10 156803 1147.81 588 594 136.1
C 9 187 103259 754.37 588 594 136.1
C 14 67 15232 107.56 588 594 136.1
D 12 227 1519768 10077.71 568 557 150.7
D 2 250 625327 4144.42 568 557 150.7
D 8 195 619015 4102.55 568 557 150.7

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