ASTROSAT CZTI

Data Quality Report

Orbit 16554

Creation date: 2024-06-27T17:24:20.059169
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_018T01_9000002442_16554cztM0_level2.evt modeM0/AS1T03_018T01_9000002442_16554cztM0_level2_quad_clean.evt
Size (bytes)521,729,28081,987,840
Size497.6 MB 78.2 MB
Events in quadrant A3,286,131538,941
Events in quadrant B3,596,070546,541
Events in quadrant C3,307,306528,131
Events in quadrant D5,185,125431,372

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139672
B0147381
C0140051
D0196841

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62711131.801945%
B62711241.977356%
C6271841.339499%
D6271161325.721576%

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 7337 6273 30 30 0.41% 0.48%
B 7337 6273 40 40 0.55% 0.64%
C 7337 6273 0 0 0.00% 0.00%
D 7337 6273 310 310 4.23% 4.94%

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 15 174 330733 2130.25 762 747 154.9
A 15 223 14180 86.72 762 747 154.9
A 0 226 6891 39.66 762 747 154.9
B 7 220 168295 1137.03 764 746 147.4
B 15 35 142640 962.93 764 746 147.4
B 10 16 74256 498.86 764 746 147.4
C 3 233 335347 1950.98 730 735 171.5
C 14 238 113234 655.94 730 735 171.5
C 7 247 12353 67.74 730 735 171.5
D 1 52 2058990 13431.46 626 609 153.3
D 5 222 414169 2698.58 626 609 153.3
D 2 33 176205 1145.81 626 609 153.3

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