ASTROSAT CZTI

Data Quality Report

Orbit 14922

Creation date: 2024-06-27T17:01:22.093483
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/AS1A04_099T01_9000002204_14922cztM0_level2.evt modeM0/AS1A04_099T01_9000002204_14922cztM0_level2_quad_clean.evt
Size (bytes)445,458,24078,793,920
Size424.8 MB 75.1 MB
Events in quadrant A3,288,841500,116
Events in quadrant B3,349,297508,068
Events in quadrant C3,266,065478,305
Events in quadrant D3,165,043466,472

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133433
B0135282
C0132322
D0131882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6205831.337631%
B6205781.257051%
C6205490.789686%
D6205641.031426%

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 7486 6207 0 0 0.00% 0.00%
B 7486 6207 0 0 0.00% 0.00%
C 7486 6207 0 0 0.00% 0.00%
D 7486 6207 15 15 0.20% 0.24%

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 8803 47.02 853 839 169.4
A 0 226 7722 40.64 853 839 169.4
A 3 1 6128 31.23 853 839 169.4
B 10 16 55034 338.61 842 824 160.1
B 12 111 18884 112.81 842 824 160.1
B 11 111 16246 96.33 842 824 160.1
C 3 233 118797 639.88 806 812 184.4
C 13 61 5815 27.13 806 812 184.4
C 10 22 5104 23.28 806 812 184.4
D 4 95 60752 311.68 807 789 192.4
D 7 223 24410 122.78 807 789 192.4
D 2 234 18597 92.56 807 789 192.4

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