ASTROSAT CZTI

Data Quality Report

Orbit 28647

Creation date: 2024-06-27T19:54:25.103168
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/AS1A10_045T07_9000004110_28647cztM0_level2.evt modeM0/AS1A10_045T07_9000004110_28647cztM0_level2_quad_clean.evt
Size (bytes)576,457,92078,796,800
Size549.8 MB 75.1 MB
Events in quadrant A3,355,352498,744
Events in quadrant B3,338,166506,392
Events in quadrant C3,406,840488,700
Events in quadrant D6,935,644456,634

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134601
B0134051
C0137021
D0251371

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6242500.801025%
B6242580.929189%
C62431292.066314%
D624365910.555823%

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 7502 6243 3 3 0.04% 0.05%
B 7502 6243 0 0 0.00% 0.00%
C 7503 6244 0 0 0.00% 0.00%
D 7503 6244 554 554 7.38% 8.87%

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 13 254 12474 68.22 859 843 170.5
A 12 16 10914 59.07 859 843 170.5
A 12 96 10665 57.61 859 843 170.5
B 12 111 18700 113.16 840 823 158.0
B 11 111 17112 103.1 840 823 158.0
B 14 111 15794 94.76 840 823 158.0
C 14 238 154041 815.05 823 832 188.0
C 14 254 30796 159.4 823 832 188.0
C 7 247 8945 43.16 823 832 188.0
D 1 52 2427148 12698.46 806 786 191.1
D 8 195 1165305 6094.55 806 786 191.1
D 13 104 123943 644.55 806 786 191.1

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