ASTROSAT CZTI

Data Quality Report

Orbit 43088

Creation date: 2024-06-27T22:47:52.735392
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/AS1T05_152T01_9000005846_43088cztM0_level2.fits modeM0/AS1T05_152T01_9000005846_43088cztM0_level2_quad_clean.evt
Size (bytes)344,543,04094,680,000
Size328.6 MB 90.3 MB
Events in quadrant A3,402,277632,465
Events in quadrant B2,883,486639,079
Events in quadrant C2,709,360625,888
Events in quadrant D3,307,180564,643

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137972
B0126302
C0118002
D0141712

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5798490.845119%
B5798681.172818%
C579860.103484%
D57981853.190755%

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 7111 5799 37 37 0.52% 0.64%
B 7111 5799 32 32 0.45% 0.55%
C 7111 5799 0 0 0.00% 0.00%
D 7111 5799 150 150 2.11% 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 10 83 624052 4895.89 618 604 127.3
A 12 189 211595 1656.9 618 604 127.3
A 15 237 118015 922.02 618 604 127.3
B 0 229 204209 1713.59 612 595 118.8
B 5 255 156353 1310.84 612 595 118.8
B 3 112 51871 431.53 612 595 118.8
C 15 214 248333 1755.67 606 610 141.1
C 0 207 41512 289.88 606 610 141.1
C 14 254 38698 269.94 606 610 141.1
D 1 52 487641 3343.04 595 575 145.7
D 12 218 219115 1499.98 595 575 145.7
D 2 16 134656 920.28 595 575 145.7

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