ASTROSAT CZTI

Data Quality Report

Orbit 10759

Creation date: 2024-06-27T16:03:30.599494
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/AS1G07_051T01_9000001550_10759cztM0_level2.evt modeM0/AS1G07_051T01_9000001550_10759cztM0_level2_quad_clean.evt
Size (bytes)716,250,240115,099,200
Size683.1 MB 109.8 MB
Events in quadrant A4,373,570736,683
Events in quadrant B5,957,459726,220
Events in quadrant C3,959,151742,429
Events in quadrant D6,814,288677,746

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01800
B01800
C01800
D01800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188593
B0234642
C0178512
D0260852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86731251.441254%
B86735626.479880%
C8673590.680272%
D86736497.482993%

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 9173 8678 23 23 0.25% 0.27%
B 9173 8678 269 269 2.93% 3.10%
C 9173 8678 1 1 0.01% 0.01%
D 9173 8678 446 446 4.86% 5.14%

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 15 239 173358 807.74 1037 1014 213.4
A 13 248 80581 372.91 1037 1014 213.4
A 15 223 52487 241.24 1037 1014 213.4
B 4 239 1391469 6969.29 1027 998 199.5
B 0 85 373267 1865.88 1027 998 199.5
B 0 214 85566 423.87 1027 998 199.5
C 8 128 11343 44.08 1008 1012 234.4
C 13 61 7737 28.69 1008 1012 234.4
C 8 112 7007 25.58 1008 1012 234.4
D 1 52 2096816 8715.72 980 949 240.5
D 8 195 558808 2319.87 980 949 240.5
D 5 222 124473 513.68 980 949 240.5

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