ASTROSAT CZTI

Data Quality Report

Orbit 09865

Creation date: 2024-06-27T15:51:35.595210
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/AS1A03_117T06_9000001404_09865cztM0_level2.evt modeM0/AS1A03_117T06_9000001404_09865cztM0_level2_quad_clean.evt
Size (bytes)1,096,436,160208,247,040
Size1.0 GB 198.6 MB
Events in quadrant A7,664,3331,308,354
Events in quadrant B8,296,8871,325,440
Events in quadrant C8,229,7091,282,498
Events in quadrant D7,874,7581,232,063

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0191
B0190
C0191
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0379433509
B0395463833
C0401144084
D0397964263

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038022
B038046
C038028
D037930

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A168413412.024820%
B167523852.298233%
C167594282.553852%
D167483902.328636%

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 20563 17919 0 0 0.00% 0.00%
B 20563 17889 8 8 0.04% 0.04%
C 20563 17896 41 41 0.20% 0.23%
D 20563 17860 74 74 0.36% 0.41%

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 0 226 18015 39.7 1989 1944 404.8
A 12 194 15706 33.99 1989 1944 404.8
A 3 137 9856 19.54 1989 1944 404.8
B 0 85 409588 1071.37 1973 1921 380.5
B 4 81 157271 408.27 1973 1921 380.5
B 12 111 46348 116.76 1973 1921 380.5
C 4 254 646171 1445.13 1920 1930 445.8
C 14 234 55249 119.6 1920 1930 445.8
C 9 221 26312 54.69 1920 1930 445.8
D 1 52 293779 595.48 1901 1863 490.2
D 12 233 207025 418.51 1901 1863 490.2
D 2 234 75939 151.11 1901 1863 490.2

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