ASTROSAT CZTI

Data Quality Report

Orbit 06933

Creation date: 2024-06-27T15:13:21.515497
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_103T01_9000000950_06933cztM0_level2.evt modeM0/AS1A02_103T01_9000000950_06933cztM0_level2_quad_clean.evt
Size (bytes)751,386,24061,493,760
Size716.6 MB 58.6 MB
Events in quadrant A3,352,359366,242
Events in quadrant B3,796,880367,840
Events in quadrant C11,090,534318,441
Events in quadrant D4,074,019353,405

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139183
B0154052
C0375692
D0164382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65271221.869159%
B65271702.604566%
C6527341552.321128%
D65271492.282825%

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 7807 6528 0 0 0.00% 0.00%
B 7807 6528 31 31 0.40% 0.47%
C 7807 6527 2745 2745 35.16% 42.06%
D 7807 6528 29 29 0.37% 0.44%

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 14 9966 52.42 865 849 173.9
A 0 128 9222 48.14 865 849 173.9
A 0 226 8456 43.74 865 849 173.9
B 4 48 195562 1189.79 864 845 163.7
B 0 228 164421 999.5 864 845 163.7
B 0 214 45776 274.54 864 845 163.7
C 9 247 8741828 63396.06 597 601 137.9
C 1 16 14252 99.0 597 601 137.9
C 13 61 4579 28.85 597 601 137.9
D 8 195 231042 1119.54 847 823 205.6
D 2 136 201343 975.11 847 823 205.6
D 12 233 186519 903.03 847 823 205.6

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