ASTROSAT CZTI

Data Quality Report

Orbit 07632

Creation date: 2024-06-27T15:22:10.557914
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/AS1T01_157T01_9000001050_07632cztM0_level2.evt modeM0/AS1T01_157T01_9000001050_07632cztM0_level2_quad_clean.evt
Size (bytes)371,649,60027,518,400
Size354.4 MB 26.2 MB
Events in quadrant A1,712,824156,184
Events in quadrant B1,598,072159,104
Events in quadrant C5,736,877142,121
Events in quadrant D1,991,595149,975

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072391
B068161
C0192261
D081021

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31632116.670882%
B31631514.773949%
C3163143645.399937%
D31632006.323111%

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 3543 3164 19 19 0.54% 0.60%
B 3543 3164 0 0 0.00% 0.00%
C 3543 3164 1171 1171 33.05% 37.01%
D 3543 3164 82 82 2.31% 2.59%

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 13 251 145007 1773.66 387 377 81.5
A 15 234 69605 848.97 387 377 81.5
A 3 1 8729 102.42 387 377 81.5
B 0 219 39572 502.34 392 382 78.0
B 0 214 9412 115.75 392 382 78.0
B 12 111 7224 87.7 392 382 78.0
C 9 68 2255824 29151.42 324 325 77.4
C 9 243 2155269 27851.79 324 325 77.4
C 1 16 38185 489.33 324 325 77.4
D 1 83 222057 2375.3 374 363 93.3
D 2 152 70055 746.7 374 363 93.3
D 13 104 66945 713.38 374 363 93.3

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