ASTROSAT CZTI

Data Quality Report

Orbit 29592

Creation date: 2024-06-27T20:05:50.223702
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_093T01_9000004266_29592cztM0_level2.evt modeM0/AS1A10_093T01_9000004266_29592cztM0_level2_quad_clean.evt
Size (bytes)567,636,480101,479,680
Size541.3 MB 96.8 MB
Events in quadrant A3,508,954663,418
Events in quadrant B4,011,817676,503
Events in quadrant C3,723,770628,611
Events in quadrant D5,460,988606,687

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150202
B0164812
C0155622
D0208312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71502213.090909%
B71502753.846154%
C71512193.062509%
D715174410.404139%

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 7220 7152 6 6 0.08% 0.08%
B 7220 7152 12 12 0.17% 0.17%
C 7221 7153 3 3 0.04% 0.04%
D 7221 7153 403 403 5.58% 5.63%

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 13 120753 671.28 877 857 178.6
A 13 254 13787 72.39 877 857 178.6
A 3 137 8806 44.51 877 857 178.6
B 0 189 470659 2790.75 868 843 168.3
B 0 190 29684 171.32 868 843 168.3
B 0 229 28994 167.22 868 843 168.3
C 3 233 261639 1331.35 833 837 195.9
C 14 238 141090 715.97 833 837 195.9
C 15 208 21273 104.32 833 837 195.9
D 13 104 1105852 5587.96 821 797 197.8
D 8 195 456379 2303.75 821 797 197.8
D 13 153 238919 1204.12 821 797 197.8

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