ASTROSAT CZTI

Data Quality Report

Orbit 22352

Creation date: 2024-06-27T18:40:28.371232
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_004T01_9000003308_22352cztM0_level2.evt modeM0/AS1C05_004T01_9000003308_22352cztM0_level2_quad_clean.evt
Size (bytes)458,648,64086,120,640
Size437.4 MB 82.1 MB
Events in quadrant A3,238,968544,000
Events in quadrant B3,208,325555,806
Events in quadrant C3,126,888529,165
Events in quadrant D3,858,559509,909

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140361
B0138401
C0137091
D0162571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67251081.605948%
B67261201.784121%
C67261251.858460%
D67251502.230483%

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 7265 6725 14 14 0.19% 0.21%
B 7266 6726 1 1 0.01% 0.01%
C 7266 6726 0 0 0.00% 0.00%
D 7265 6725 73 73 1.00% 1.09%

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 3 1 121149 755.03 795 777 159.4
A 4 2 51839 320.28 795 777 159.4
A 13 254 10276 59.58 795 777 159.4
B 0 190 34212 220.47 798 777 151.7
B 12 111 18796 118.82 798 777 151.7
B 11 111 16566 104.11 798 777 151.7
C 14 238 125196 700.07 768 773 177.7
C 13 61 5416 26.12 768 773 177.7
C 3 9 5336 25.67 768 773 177.7
D 1 52 623555 3326.06 770 746 187.3
D 12 227 248852 1324.99 770 746 187.3
D 2 234 26365 136.82 770 746 187.3

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