ASTROSAT CZTI

Data Quality Report

Orbit 33268

Creation date: 2024-06-27T20:46:50.977933
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/AS1A11_047T10_9000004778_33268cztM0_level2.evt modeM0/AS1A11_047T10_9000004778_33268cztM0_level2_quad_clean.evt
Size (bytes)492,459,84081,385,920
Size469.6 MB 77.6 MB
Events in quadrant A2,642,910532,965
Events in quadrant B4,574,735506,355
Events in quadrant C3,146,128521,826
Events in quadrant D4,166,352507,525

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114633
B0174202
C0128902
D0162782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A566340.070634%
B566374213.102596%
C5663370.653364%
D56632133.761257%

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 7125 5664 0 0 0.00% 0.00%
B 7125 5664 530 530 7.44% 9.36%
C 7125 5664 21 21 0.29% 0.37%
D 7125 5664 168 168 2.36% 2.97%

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 15 169 24078 178.02 666 653 131.6
A 13 210 15600 113.59 666 653 131.6
A 13 6 13677 98.98 666 653 131.6
B 5 172 1781573 15045.63 618 603 118.4
B 5 200 126631 1064.68 618 603 118.4
B 0 219 93385 783.82 618 603 118.4
C 15 214 253184 1706.81 642 647 148.0
C 10 49 143816 967.63 642 647 148.0
C 0 10 109591 736.31 642 647 148.0
D 8 195 709259 4149.53 633 620 170.8
D 12 218 444716 2600.46 633 620 170.8
D 12 233 140058 816.5 633 620 170.8

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