ASTROSAT CZTI

Data Quality Report

Orbit 22034

Creation date: 2024-06-27T18:35:37.836416
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/AS1A07_134T01_9000003256_22034cztM0_level2.evt modeM0/AS1A07_134T01_9000003256_22034cztM0_level2_quad_clean.evt
Size (bytes)509,310,720105,117,120
Size485.7 MB 100.2 MB
Events in quadrant A3,546,007678,966
Events in quadrant B3,679,386687,568
Events in quadrant C3,532,483657,568
Events in quadrant D4,165,640645,869

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153332
B0156742
C0153162
D0173882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7376410.555857%
B7376630.854121%
C7376720.976139%
D73761341.816703%

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 7811 7377 0 0 0.00% 0.00%
B 7811 7377 1 1 0.01% 0.01%
C 7811 7377 0 0 0.00% 0.00%
D 7811 7377 89 89 1.14% 1.21%

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 12243 61.57 917 898 184.3
A 3 137 7835 37.65 917 898 184.3
A 0 226 7811 37.52 917 898 184.3
B 0 190 44651 250.14 911 887 175.0
B 3 64 25756 142.14 911 887 175.0
B 0 230 25499 140.67 911 887 175.0
C 14 238 136948 660.56 871 873 206.0
C 13 61 6035 25.06 871 873 206.0
C 0 10 2840 9.55 871 873 206.0
D 1 52 395381 1838.71 882 857 214.6
D 11 176 167887 778.46 882 857 214.6
D 12 233 164387 762.15 882 857 214.6

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