ASTROSAT CZTI

Data Quality Report

Orbit 15044

Creation date: 2024-06-27T17:03:00.087503
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/AS1T02_060T01_9000002216_15044cztM0_level2.evt modeM0/AS1T02_060T01_9000002216_15044cztM0_level2_quad_clean.evt
Size (bytes)623,185,92087,917,760
Size594.3 MB 83.8 MB
Events in quadrant A4,120,227544,944
Events in quadrant B4,143,605549,366
Events in quadrant C4,522,786530,010
Events in quadrant D5,526,750464,406

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173573
B0175262
C0183712
D0221712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82463314.014067%
B82463564.317245%
C82462773.359204%
D824696711.726898%

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 8702 8247 0 0 0.00% 0.00%
B 8702 8247 7 7 0.08% 0.08%
C 8702 8248 0 0 0.00% 0.00%
D 8701 8246 647 647 7.44% 7.85%

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 12 189 99654 469.46 1032 1010 210.1
A 1 162 26742 122.46 1032 1010 210.1
A 1 178 11741 51.07 1032 1010 210.1
B 10 245 47104 231.67 1026 998 199.0
B 10 16 45563 223.93 1026 998 199.0
B 12 111 25076 120.99 1026 998 199.0
C 3 233 580286 2487.13 1001 1006 232.9
C 8 128 15878 63.85 1001 1006 232.9
C 7 247 13896 55.34 1001 1006 232.9
D 7 223 1799886 7744.66 948 918 232.3
D 10 70 118797 507.48 948 918 232.3
D 2 234 26695 110.97 948 918 232.3

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