ASTROSAT CZTI

Data Quality Report

Orbit 32763

Creation date: 2024-06-27T20:41:44.912082
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/AS1A10_057T04_9000004728_32763cztM0_level2.evt modeM0/AS1A10_057T04_9000004728_32763cztM0_level2_quad_clean.evt
Size (bytes)591,298,56062,386,560
Size563.9 MB 59.5 MB
Events in quadrant A2,887,182378,554
Events in quadrant B3,683,713368,976
Events in quadrant C2,885,012377,623
Events in quadrant D8,043,311342,184

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125143
B0147332
C0125522
D0281722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6035170.281690%
B60351933.198012%
C6035320.530240%
D6035117519.469760%

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 7318 6037 5 5 0.07% 0.08%
B 7318 6037 124 124 1.69% 2.05%
C 7318 6037 19 19 0.26% 0.31%
D 7318 6037 1012 1012 13.83% 16.76%

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 16 113394 786.47 705 690 143.3
A 12 194 19977 134.59 705 690 143.3
A 7 16 17037 114.07 705 690 143.3
B 10 246 593734 4393.1 703 686 135.0
B 0 197 76015 558.01 703 686 135.0
B 5 172 70939 520.41 703 686 135.0
C 0 10 115833 721.45 686 691 159.6
C 8 79 41551 256.02 686 691 159.6
C 15 159 18951 114.41 686 691 159.6
D 8 195 2827201 17668.27 633 618 160.0
D 12 218 1371028 8566.09 633 618 160.0
D 2 250 592462 3699.47 633 618 160.0

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