ASTROSAT CZTI

Data Quality Report

Orbit 28634

Creation date: 2024-06-27T19:54:16.814445
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_045T07_9000004110_28634cztM0_level2.evt modeM0/AS1A10_045T07_9000004110_28634cztM0_level2_quad_clean.evt
Size (bytes)567,025,92073,500,480
Size540.8 MB 70.1 MB
Events in quadrant A3,712,809434,640
Events in quadrant B4,120,883440,313
Events in quadrant C3,681,720430,533
Events in quadrant D5,173,401423,141

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153291
B0164682
C0151081
D0203401

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71381462.045391%
B71372884.035309%
C71371742.437999%
D71372203.082528%

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 7948 7139 21 21 0.26% 0.29%
B 7947 7138 137 137 1.72% 1.92%
C 7947 7138 2 2 0.03% 0.03%
D 7947 7138 110 110 1.38% 1.54%

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 15 174 133935 718.32 925 906 185.2
A 13 254 12521 62.72 925 906 185.2
A 3 137 8895 43.14 925 906 185.2
B 10 245 542589 3148.28 900 876 172.1
B 12 111 21378 119.15 900 876 172.1
B 11 111 19179 106.37 900 876 172.1
C 14 238 150492 711.89 891 897 210.1
C 0 10 27160 124.98 891 897 210.1
C 0 207 13873 61.75 891 897 210.1
D 8 195 868264 4074.6 899 878 212.9
D 1 52 589570 2765.42 899 878 212.9
D 2 250 157971 737.95 899 878 212.9

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