ASTROSAT CZTI

Data Quality Report

Orbit 13332

Creation date: 2024-06-27T16:39:14.845824
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_101T01_9000001984_13332cztM0_level2.evt modeM0/AS1A04_101T01_9000001984_13332cztM0_level2_quad_clean.evt
Size (bytes)477,777,600102,438,720
Size455.6 MB 97.7 MB
Events in quadrant A3,605,903659,420
Events in quadrant B3,612,122685,017
Events in quadrant C3,403,575661,361
Events in quadrant D3,388,059624,677

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150713
B0150172
C0143432
D0146682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67761121.652893%
B67761211.785714%
C6776350.516529%
D6776350.516529%

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 9432 6779 14 14 0.15% 0.21%
B 9432 6779 17 17 0.18% 0.25%
C 9432 6779 0 0 0.00% 0.00%
D 9432 6779 8 8 0.08% 0.12%

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 8 15 217508 1219.27 872 855 177.7
A 1 162 20677 111.55 872 855 177.7
A 0 226 7856 39.4 872 855 177.7
B 4 173 46234 268.18 885 864 169.2
B 3 64 31521 181.21 885 864 169.2
B 3 209 31283 179.8 885 864 169.2
C 3 233 65175 327.05 855 861 196.6
C 15 208 6593 29.15 855 861 196.6
C 13 61 6225 27.28 855 861 196.6
D 8 195 76497 371.26 842 820 203.8
D 1 52 65808 318.82 842 820 203.8
D 14 34 28342 135.02 842 820 203.8

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