ASTROSAT CZTI

Data Quality Report

Orbit 41339

Creation date: 2024-06-27T22:27:47.169126
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/AS1A12_037T03_9000005654_41339cztM0_level2.fits modeM0/AS1A12_037T03_9000005654_41339cztM0_level2_quad_clean.evt
Size (bytes)148,893,12030,015,360
Size142.0 MB 28.6 MB
Events in quadrant A1,146,440209,818
Events in quadrant B1,819,253179,953
Events in quadrant C1,228,469191,982
Events in quadrant D1,163,648185,564

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A046111
B067701
C047541
D047181

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1943351.801338%
B194338619.866186%
C19431135.815749%
D1943462.367473%

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 1943 1943 25 25 1.29% 1.29%
B 1943 1943 329 329 16.93% 16.93%
C 1943 1943 111 111 5.71% 5.71%
D 1943 1943 40 40 2.06% 2.06%

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 10 83 225820 4931.75 213 208 45.7
A 13 248 73661 1605.64 213 208 45.7
A 2 79 20875 451.77 213 208 45.7
B 5 255 1022495 25079.86 197 191 40.8
B 0 190 18132 440.14 197 191 40.8
B 12 111 4862 114.59 197 191 40.8
C 0 10 363440 7500.37 199 200 48.4
C 15 214 82243 1694.07 199 200 48.4
C 8 222 3439 66.88 199 200 48.4
D 5 222 127193 2411.23 209 203 52.7
D 13 249 114653 2173.12 209 203 52.7
D 2 120 40412 763.47 209 203 52.7

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