ASTROSAT CZTI

Data Quality Report

Orbit 28773

Creation date: 2024-06-27T19:56:07.102015
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/AS1C05_019T04_9000004130_28773cztM0_level2.evt modeM0/AS1C05_019T04_9000004130_28773cztM0_level2_quad_clean.evt
Size (bytes)479,134,080127,535,040
Size456.9 MB 121.6 MB
Events in quadrant A3,096,209861,876
Events in quadrant B3,211,170884,993
Events in quadrant C3,483,739842,969
Events in quadrant D4,268,477809,829

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136592
B0139312
C0148102
D0174022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A664580.120391%
B6645170.255831%
C6645831.249059%
D66451532.302483%

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 7785 6646 0 0 0.00% 0.00%
B 7785 6646 0 0 0.00% 0.00%
C 7785 6645 0 0 0.00% 0.00%
D 7785 6646 127 127 1.63% 1.91%

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 11633 67.72 799 783 160.2
A 3 137 7633 42.75 799 783 160.2
A 0 226 6844 37.83 799 783 160.2
B 10 245 64462 422.09 800 781 150.9
B 12 111 18560 117.84 800 781 150.9
B 11 111 16568 104.64 800 781 150.9
C 3 233 283703 1571.68 775 780 180.0
C 14 238 133679 738.28 775 780 180.0
C 15 208 29053 157.06 775 780 180.0
D 1 52 571161 3144.46 764 743 181.4
D 8 195 461763 2541.4 764 743 181.4
D 12 233 171476 941.17 764 743 181.4

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