ASTROSAT CZTI

Data Quality Report

Orbit 39073

Creation date: 2024-06-27T22:00:04.757581
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_067T01_9000005432_39073cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39073cztM0_level2_quad_clean.evt
Size (bytes)354,133,44087,822,720
Size337.7 MB 83.8 MB
Events in quadrant A3,091,868595,507
Events in quadrant B2,321,355609,142
Events in quadrant C3,302,941561,754
Events in quadrant D3,987,033527,350

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124573
B0106222
C0132542
D0155142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5214651.246644%
B5214210.402762%
C52141472.819333%
D5214961.841197%

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 7096 5214 54 54 0.76% 1.04%
B 7096 5214 11 11 0.16% 0.21%
C 7096 5214 101 101 1.42% 1.94%
D 7096 5214 106 106 1.49% 2.03%

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 15 222 424465 3621.36 571 561 117.1
A 10 83 411189 3507.94 571 561 117.1
A 7 3 13117 107.26 571 561 117.1
B 5 172 41102 365.05 571 557 111.1
B 5 184 30361 268.35 571 557 111.1
B 12 111 14048 121.47 571 557 111.1
C 15 208 848648 6548.93 551 554 129.5
C 15 214 221914 1709.33 551 554 129.5
C 3 233 66660 510.47 551 554 129.5
D 12 235 1382888 10301.06 550 535 134.2
D 13 249 106907 792.67 550 535 134.2
D 13 174 87457 647.73 550 535 134.2

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