ASTROSAT CZTI

Data Quality Report

Orbit 17300

Creation date: 2024-06-27T17:34:44.050710
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/AS1A05_010T02_9000002556_17300cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17300cztM0_level2_quad_clean.evt
Size (bytes)470,064,960100,923,840
Size448.3 MB 96.2 MB
Events in quadrant A3,378,013655,445
Events in quadrant B3,452,131658,868
Events in quadrant C3,377,734620,118
Events in quadrant D3,534,602616,600

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150202
B0151252
C0149012
D0156162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7249400.551800%
B7249710.979445%
C7249660.910470%
D7250190.262069%

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 8829 7251 3 3 0.03% 0.04%
B 8829 7251 1 1 0.01% 0.01%
C 8829 7251 1 1 0.01% 0.01%
D 8830 7252 7 7 0.08% 0.10%

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 4 2 39192 218.08 865 848 175.8
A 14 235 11563 60.94 865 848 175.8
A 0 226 7576 38.26 865 848 175.8
B 0 230 28003 161.49 869 845 168.2
B 12 111 20629 117.64 869 845 168.2
B 10 247 19532 111.12 869 845 168.2
C 14 238 127197 646.01 825 830 195.6
C 3 233 32758 163.22 825 830 195.6
C 13 61 5855 25.69 825 830 195.6
D 5 222 201689 996.03 835 811 201.7
D 2 152 101536 499.43 835 811 201.7
D 1 52 70601 346.04 835 811 201.7

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