ASTROSAT CZTI

Data Quality Report

Orbit 06024

Creation date: 2024-06-27T15:01:53.813299
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/AS1A02_006T01_9000000776_06024cztM0_level2.evt modeM0/AS1A02_006T01_9000000776_06024cztM0_level2_quad_clean.evt
Size (bytes)479,096,64099,924,480
Size456.9 MB 95.3 MB
Events in quadrant A4,006,803627,404
Events in quadrant B3,575,777649,721
Events in quadrant C3,265,901633,118
Events in quadrant D3,166,014609,684

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016012
B01604
C016012
D016010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180681523
B0168701448
C0160811188
D0161101184

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7222871.204652%
B72371041.437060%
C7274590.811108%
D7282390.535567%

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 9370 7772 14 14 0.15% 0.18%
B 9370 7756 23 23 0.25% 0.30%
C 9370 7791 2 2 0.02% 0.03%
D 9370 7771 2 2 0.02% 0.03%

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 34 735598 4298.47 834 815 170.9
A 15 234 55709 321.13 834 815 170.9
A 12 194 7908 41.49 834 815 170.9
B 3 64 148767 900.94 852 830 164.2
B 15 204 81642 492.15 852 830 164.2
B 12 111 16697 96.63 852 830 164.2
C 1 16 12339 59.36 828 832 193.9
C 8 208 9955 47.06 828 832 193.9
C 9 54 7893 36.42 828 832 193.9
D 2 206 29974 144.88 823 796 201.4
D 5 97 19794 94.33 823 796 201.4
D 8 195 18382 87.32 823 796 201.4

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